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Mike is a kindred spirit. He moved onto his boat after his marriage failed although his first floating home was far more of a challenge than mine… a 27ft GRP cruiser. His current 50′ widebeam must feel SO spacious after that!
Same old story, separated after 35 years marriage, (second one at that) and it was all I could afford! I already owned a 27 foot GRP
cruiser so I lived on that for well over 3 years, now that’s what you could call challenging…
The boat is called Xanadu, it was already named and it seemed appropriate.
She is moored at [intlink id=”611″ type=”post”]Hartford Marina[/intlink] at a permanent berth, a pontoon, with electricity (prepaid card) and water. I look out over the open basin and have my cruiser moored next door (divorce not settled yet so that will probably have to go!!!!)
Not withstanding the above confession I have owned it for just over 12 months.
Cashed in all my sayings whilst I still had the chance!!
I work as a Lead Internal Verifier at a local FE college (will be 65 next March so hope to retire then)!
Condensation and the chilly mornings
Freedom to move if I get fed up here!
That’s a difficult one, it is an on-going project so couldn’t put my finger on one thing.
No problem as I have a permanent mooring and a supermarket within a couple of miles.
Again no problem as I have a washing machine.
Now there’s a story! Up until a few months ago I had smart sea toilet. Great piece of kit until the foul water tank under my bed decided to leak in spectacular fashion! The carpet I had just fitted floated out the door closely followed by my socks and slippers. Fortunately for me, if you can call this fortunate, I had worked over 20 years in the water industry and had spent many a happy hour up to my armpits in the smelly stuff so I wasn’t too fazed by that side of the disaster. I spent the whole day mopping, cleaning and disinfecting before I could locate the problem. The tank had rusted through in the bottom corner and was beyond repair without some serious upheaval. I removed the toilet and put a porta potty in its place!
I have a 3G PAYG sim in a dongle. The reception can be patchy and slow but it’s ok for emails and browsing the web but not much else.
As I live on the Great Ouse and my cruiser is a widebeam I have only ever used the wide canals but I guess the section of the Trent that uses the Nottingham Canal is OK.
I have access to mains electricity but also have a generator, a decent solar panel that keeps the batteries charged up, that is when the sun comes out, and an inverter. Whilst I use power for the washing machine, fridge and freezer plus all the other random equipment that has a plugtop on, I only need to feed the meter with a £5 card once a week!
Mmm, can be rather cool! I don’t have a stove but rely on an Eberspacher feeding a conventional 5 radiator wet system. It’s ok at the weekends but it is not cheap to run or easy to keep the fuel tank full. When I lived on the cruiser, during that bad winter a couple of years ago, the water pump, filter, shower and pipework froze and split during the night while I lay and shivered in bed!
Buy the best you can, trying to carry out major refurbishments whilst living on board can be difficult. Also have a very good relationship with your partner, there aren’t many places to hide on a boat, whether it be narrow or wide!!
Would I change the lifestyle – defiantly not! In can be a pain sometimes but I love waking up in the morning and listening to the wild fowl. On a summers evening (what summer I hear you ask) there’s nothing better than sitting up on deck with a good book and a cold beer, although a good woman…
Are you one of the lucky few who lives the dream on board your own narrowboat full time? Would you like to share your experience with some of the thousands of potential floating home owners who visit this site? If you can spare the time to answer a few simple questions, I would love to hear from you. Just let me know so I can email the questions to you. I’ll create a post like the one above complete with a link back to your own blog or website.
By Tim Davis
This is the second of two articles exploring power generation and use on board narrowboats. The first part is a very detailed look at batteries. You can read it here.
Generators come in different types. The petrol hand pull type, and the more expensive “suitcase” type which are now very quiet.
Petrol Hand Pull Generators
These are very useful but great care must be taken with petrol storage and use – fumes dropping into the cabin from a generator being filled on deck combining with the gas cooker being on have caused many an explosion – so always fill on the bank!
These output AC mains 230V which you simply run from the plug on the generator to the socket on the back of the boat. The boats electrics see the power as a landline (you may have a transfer switch that will need to be set to landline position). All your 230v sockets will work as normal, though you will only have the maximum output that your particular generator has to offer. A small generator is typically 1000W and a larger one maybe 3000W, so you do need to choose a generator that will run everything you have on board.
If you have a washing machine you will probably need at least a 2000W generator and probably a 3000W. Really importantly, don’t forget that when your generator is running to turn the mains battery charger on too! You may as well get some valuable charge in while the washing machine is on! This is where having a smaller output charger might be a benefit as it will run happily on a lower powered generator- some of my customers have two chargers – a big one when on shore power and a smaller one when using the genny. Most generators do have a 12V charging plug as well, but they generally only output a low taper charge of about 6 amps so you are far better off using the mains output to run your 3 step charger instead.
Built in suitcase diesel generators
These offer all the benefits of the petrol generator but are built into the boat, enclosed in a sound proof capsule and start by pressing a button inside the boat. I have one of these and it works very well.
Generator Use
The usual practice is to “save up” things that require a lot of power and do them all at once when the generator is on. So I generally do the washing, vacuum the boat and run the immersion heater to heat my water, and of course put the battery charger on at the same time as watching the television! You get into a routine really quite quickly.
Other types of generator
A/C Mains generators mounted on the main engine like another alternator.
This is actually another alternator on the boats main engine but it outputs 230V mains which is fed into your system through a transfer switch (see below). They are usually 3500 watts and are quite expensive (around £2K). They basically allow you to run heavy 230v loads while the engine is running without having to use the batteries and an inverter.
Inverters
Now this is the important one and a great source of flat batteries if used incorrectly! An inverter is a device that takes your precious 12V power from the battery bank and converts it into 230V mains electricity which is then fed into your boat through a transfer switch (see below). It sounds great doesn’t it? Mains power with no noise coming from nowhere by magic! However, beware – generating mains this way is VERY costly on battery power. Let’s take an example….
A boater has an electric kettle (bad idea!) that takes 3 minutes to boil and consumes 3kw of power to do so. The boater has a 3kw inverter on board so that’s all fine – it will work! However if we do the sums 3000W divided by 12V = 250 amps -that’s a massive amount to draw from the batteries and remember leisure batteries DON’T like a high current draw. So we have a general rule of thumb here. Avoid using an Inverter to run things that heat up as they all consume VAST amounts of power.
The inverter should be used for light duty things like entertainment equipment and such like. If you are in a position where you need to run the washing machine and don’t have a generator of any sort but do have a big inverter then the rule is you MUST run the engine at the same time as drawing that load so that you are at least putting the bulk of the current back in AS you draw it out through the inverter.
It also pays to have one of the alternator controllers I mentioned earlier to optimise the charge going in. In fact if you have a big alternator, a charge controller and a decent inverter coupled with a decent sized battery bank then you have kind of got all the benefits of a portable generator BUT you are still running that big main engine, that’s where generators score as they are small engines consuming much less fuel and much quieter.
The other golden rule with inverters is to switch them OFF when you don’t need 230 power. They all consume valuable power (around 2 amps typically) just sitting in idle mode, though some new inverters do have a standby function that reduces this I would still adopt the mantra of if you don’t need it right now TURN IT OFF. That goes for ANY device on board not just inverters.
Transfer Switches
I mentioned that your portable generators just plug into the landline, but if you have a built in one and an inverter there must be some way of separating these 230V power sources in case you were daft enough (by mistake of course!) to have them all on at once! This is done using a Transfer Switch. This is usually a manual switch with either two positions (Land line, Inverter) or three (Land line, Inverter, Generator). So you select your power source then either plug it in or switch it on depending on what the power source is. Some newer boats have automatic transfer switches that will detect the incoming mains power source and select accordingly.
Tips and Tricks for getting the best out of your power system.
OK, this is a critical bit of the article – there’s lots you can do both technology wise AND with the way you think about and use power that can make a huge difference for those of you living without that marvelous landline plugged in like a soothing umbilical cord! Part of living afloat, if you’ve recently come from land is changing your whole thought process of how you live.
Minimising your power draw
DO have a12V fridge, and if you really must, a 12V freezer. I have a combined 12V fridge freezer that fits under the counter taking up the space of a normal fridge. Obviously the fridge is smaller but it has an 18 litre freezer compartment with its own door. Advantage: only one compressor to run and takes less space! Many new built boats have a 230v mains fridge – great if you are plugged in but a nightmare to live with on the cut as you have to have an inverter on with all the loss that goes with it for 24 hours every day!
Change your lighting for LED bulbs. This is a relatively new invention. LED lights now give fabulous light output in a nice warm tone, but with a fraction of the current draw. If you have say fifteen 20W halogen lights on your boat, when switched on they will draw 25 amps. That’s a huge amount! Replace them with LED bulbs. You don’t have to change the fittings. You will draw around 2.25 amps for a similar level of brightness. For further technical information on LEDs go to www.baddiethepirate.co.uk Note that you can also convert favourite table lamps from 230v to LED and 12V. -You really can’t tell the difference when they are lit!
Try to minimise use of an inverter to an absolute minimum – try to run as much as possible on 12V power. There are many good 12V TVs these days for example. What about laptops? Most are a voltage of around 18 or 19 volts but they do vary. As a result most people switch the inverter on to run them. If you are working from the boat this might mean the inverter is on all day – not good! It is possible to buy from shops like Maplin or indeed on line a 12V charger. This takes 12V from your boat and steps it up to the required voltage of the laptop.
Be careful with other bits of equipment that run on 12V but normally have a mains adapter. They will likely not like the variable nature of boats voltage (between 14.4 and 11.5) if you just connect them directly to the 12V but it can be done using a voltage stabaliser unit. This sits in the power line to the device and ensures it always gets exactly 12V. Please contact me for further info.
So there is one critical message in here. You need 12V sockets throughout the boat! Interestingly older boats tend to have them while newer boats only have 230V sockets backed up by a big inverter, in which case I would advise having some 12V sockets fitted. 12V sockets are either 3 round pins so you can put a plug on the end of your old 230 table lamp and plug it into the 12V socket, or the car cigar type. They are however invaluable. I have three in the saloon dotted around, one in the galley and one in the bedroom.
Have solar panels (see my last article) these provide a low amp charge but plenty to cover the use of a fridge and lighting and make a REAL difference to life afloat. I recommend them highly!
If you use the inverter to run the washing machine, make sure the engine in running and consider an alternator controller to improve the charge.
If you use an inverter beware of the silent battery killers! Most common problem is many boats have electric water heaters (immersion heaters), great when you are plugged in, but if you “accidentally” leave it on when the inverter is on it will silently drain the batteries VERY quickly! It’s another good reason to have a monitoring panel. When I switch my genny off I always glance at the panel to see if its drawing an unusually high amount as it is so easy to leave something on by mistake!
The other killer is leaving the battery charger on when the inverter is on. This most commonly happens when the generator has been running and the charger quite correctly switched on to get a bit of charge, then the boater switches over to inverter when the generator is turned off leaving the charger on – well you can’t charge batteries from batteries can you?! So all that happens is they drain down fast trying to!
I encourage new boaters to write a check list to help get into the routine – it doesn’t take long but saves you the heartache of running out of power prematurely!
If you decide to have a portable generator, make sure it is big enough to run the heaviest load, and make sure your battery charger is switched on when the generator is on for another reason.
DON’T even consider having an electric kettle or toaster unless you are plugged in at a marina. If you are off grid then use the gas cooker! In the winter I have a kettle on top the stove all the time so I always have a bowl full of hot water when I need it.
Remember – if you are not using it SWITCH OFF most importantly if you have been using the inverter to say run the sewing machine, don’t just turn the sewing machine off when you’ve finished, turn the inverter off too!
In a later article I may well talk all about heating and water so watch this space!
Building the Perfect Power System
OK what would I do with an unlimited budget?
Batteries and charging:-
1. A battery bank of 6 x 110 ah batteries
2. A 100 amp or more alternator with a smart controller
3. 300W of solar panels with an advanced controller
4. Built in diesel generator giving 3.5KW of mains
5. 100 amp 3 step 230V charger
Power use: –
1. 1500W inverter for occasional light 230v loads
2. LED Lighting throughout
3. All entertainment equipment 12V
4. A laptop running through a 12V charger
5. A full power monitoring and management panel
Of course you would struggle to achieve all of these goals. I know I haven’t achieved them all but it’s important to aim for perfection!
I hope this article has been of interest, anyone who has specific questions please feel free to email me at tim@onboarsolar.co.uk I can supply and fit any of the systems talked about as well and a lot of my work is taking a boat and just adding the bits and providing the knowledge to make it better! My full contact details are on my website www.onboardsolar.co.uk I am considering the following future articles, any feedback you can give with regard to this OR suggested other articles to do with the technical side of boats would be welcome.
Tim is considering writing one of the following articles. Please let him know which one you are interested in most by completing this lightning fast survey
1. Wiring up your narrow boat – what are the issues?
2. Heating your boat
3. Water systems
Useful Reading
The 12 Volt Bible – Miner Brotherton
An American book so some of the standards a different but a good insight into all things electrical
Electrics Afloat – Alastair Garrod
A great book with lots of diagrams and pictures
Boat Owner’s Illustrated Wiring Handbook – Charles Wing
A great book for those wanting deep technical stuff!
If you haven’t done so already, read the first part of this two part series: [intlink id=”20527″ type=”post”]Narrowboat Electrics Part 1: Batteries[/intlink]
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By Tim Davis
In this follow on from[intlink id=”18788″ type=”post”] my recent solar power article[/intlink], I want to talk about power systems in general, the considerations, issues, best practices and trouble shooting of power problems. I have been working on “off grid” power systems for over 20 years, initially remote telecommunication facilities for the oil industry and for the last 12 years on boats.
Interestingly the challenges of living with off grid power are the same regardless of the actual situation. I have also lived aboard for 12 years, most of that time continually cruising the system so get to “live” the issues as well. As with my last piece I am going to focus on the all important “need to know” practical issues rather than deep technical understanding of how it all works. I have tried to give info for everyone from complete novices to those with more experience but who want to understand more. To this end I have used headed sections so you can scroll through and pick a section that is of interest. I hope you enjoy! Before starting to unravel the boats electrical systems, it is important to categorise the different boat “situations”.
A boat setup according to accepted best practice will have two power systems.
In my first category of boat, in a marina, the boat is plugged into mains power – this means all 230v sockets on the boat are running straight from the mains power as they would be in a house. Most boats will also have a 12V charging system fitted. This will not only keep the batteries topped up it will also act as a mains powered “battery” and run all the boats 12V services directly from the mains – so in this scenario life is a doddle!
Once off shore power however, as my other categories of boat are, then everything changes. The source of ALL power is the humble 12V battery. I would say without doubt the hardest part of living afloat without being plugged in is power management. In this scenario essential systems described above run straight from the batteries, luxury 230V systems get their power from an inverter – a device that converts 12V DC power to 230V AC power as if by magic BUT in doing so generally consumes HUGE amounts of power (yes, more on this later too…!)
OK, quick reminder from the last article of the volts/amps thing. A battery is like a water tank, but full of volts. (12 of them). Imagine a pipe from the battery instead of a wire and a tap on the end. Open the tap and amps flow down the pipe and out of the tap (opening the tap is, say, turning on the telly). The more the tap is opened, the more amps are flowing. As the amps flow, the volts in the battery drop until it’s empty. Charging the battery refills the battery with volts by passing current in amps back into the battery. This is done using some sort of charging system (the most well known method is, like a car, by running the engine).
On most boats 12V batteries are used. These batteries come in two main types; starter battery and leisure batteries. The starter battery is used as its name suggests to start the engine only (same as a car starter battery) and is isolated from the leisure batteries that are used to provide 12V power for everything in the cabin described above. You will also here these referred to as “house” or sometimes “ships” batteries. Noticed that I have used the term “batteries” plural. This is because to provide the considerable about of power required to keep a boats essential and luxury systems going it is normal to “bank” up batteries (to provide a bigger overall “tank” of power). Although it is possible to buy a very big battery it is not usually practical to do so therefore it is usual to have, say 4 x 12V leisure batteries connected together to form one large battery (just as you would put multiple batteries in say, a torch). Batteries of course have a positive and negative terminal and it is just a case of connecting all of the positives together and all of the negatives together and taking a single supply from each.
Individual batteries – the familiar shoe box + sized black box )that weighs a ton!) are actually made up of 6 x 2V “cells” that together deliver 12V. Starter batteries and leisure batteries differ in that starter batteries are designed to deliver a very high current for a very short time – the time it takes to start the engine – and are never drained (or “deep cycled”). Leisure batteries are designed to deliver a smaller current steadily over a long period of time and are likely to be regularly drained or deep cycled. The difference is actually to do with the structure of the plates inside, however from our purely practical point of view it’s important to note that key difference.
Leisure batteries are further divided into different technologies. The first of these and by far the most common out there is the wet lead acid battery. These are the oldest technology consisting of two lead plates in each cell dipped in sulphuric acid. Chemical changes occur between the metal and the acid when a voltage is passed through the positive to negative plate that cause it to store a voltage, a reverse reaction taking place when the battery is being used or drained. That’s as technical as were going to go!
Lead acid batteries have several advantages.
Gel batteries are often raved about. These are batteries where the acid electrolyte is contained in a gel paste. They are permanently sealed and were originally designed for applications where the battery may be turned upside down such as ocean going boats, airplanes etc. They can in fact be installed sideways which can sometimes be an advantage. One important thing – Its VERY important to understand that two identically rated batteries, one gel and one lead acid will have the same amount of stored power. Gel batteries do not give you more power in some clever way as some believe. They do however give more deep cycles – a 1000 is about par for the course AND you can leave them is a discharged state then re charge them and they will happily come back up again.
A similar battery type is the AGM (Absorbed Glass Mat). These use glass fibre matting between plates which makes for a bigger plate contact area and thus a battery that can deliver starter type high current and deep cycle. If you have the budget AGM batteries are the best way to go for a long reliable life. However they are not tolerant of being over charged so you need to be really sure your charging systems are in good order. The choice for you the boater is normally a simple one of, pay a small amount on lead acid batteries, treat them as a consumable -use them for a couple of years then replace, or invest in AGM with a “potential” longer life and a “potential” greater tolerance of deep cycling. What do I do? I have lead acid and replace them when they wear out – careful use and monitoring tools I shall chat about later usually give me 3 years of intense “live aboard” use – I’m happy with that!
There is one final class of battery you may hear of and that is the “traction” battery. These are big 2V individual batteries designed and built for mobile electric vehicles such as golf carts and disabled buggies. They are very tolerant of very deep cycling and although take up a vast amount of space to achieve a half decent battery bank size with a lot of expensive cable interconnects are the BEST system but also probably overall the MOST expensive.
Most boats have a bank of 12V lead acid or Gel/AGM batteries. Individual batteries have their capacity rated in AMP Hours. That is to say how many amps they can deliver over one hour. So a 110ah battery can deliver 110 amps over one hour if you are drawing 1 amp). So this means if you are drawing say 10 amps with the TV, lighting etc during an evening then every 6 minutes you will draw 1 amp hour. However – a battery’s usable range is not the full range of the batteries voltage.
Imagine the water tank analogy – the pipe running to the tap is a long way up from the bottom! A fully charged battery will sit at around 12.6 volts assuming you don’t draw anything from it. The usable voltage runs down to about 11.5 volts. Beyond that level if you continue to drop the voltage the battery life will suffer so it’s not advisable to lower the voltage beyond this point. Beyond this 11.5V level the battery will quickly drop down to 10.4 volts which is a truly dead battery – referred to as “voltage end point”.
So we have this relatively small operating range between 12.6 and 11.5 which means you actually only have access to about 30% of the actual capacity or about 36 ish amp hours. I would expect (and have seen through the monitoring tools discussed later) around 120 amp hours of actual usable power out of a bank of 4 x 110ah batteries
The most widely known form of charging is just like a car, running the engine which turns an alternator that charges the batteries. Batteries need a voltage of 14.4 volts to accept a charge. Alternators use a very simple system called a taper charge. The alternator outputs a voltage of 14.4 volts and the battery bank at a much lower voltage accepts this and starts reversing the chemical process of discharge and “takes on a charge” as the battery voltage rises, its resistance to the alternator increases and so the alternator current reduces. It’s a bit like an old fashioned balance type weighing scale, eventually the resistance from the charged battery becomes great enough so that the alternator output drops to close to zero. However, at that point the battery is generally only at 80% of its maximum charge. This is not a problem for a starter battery – that is plenty to start the engine BUT if your leisure batteries are only at 80% charge that is another huge drop in usable battery power. It’s just the simple balanced way that alternators work. Alternators range in their output – older boats tend to have alternators of around 50 amps output where as newer engines are often fitted with alternators as high as 175 amps. Clearly the larger the output the quicker those amps get put back into the battery!
Another important point to be aware of here is, remember we have a starter battery and a bank of leisure batteries? These are two separate battery banks so that if you drain the domestic batteries, you still have the fully charged starter battery to crank over the engine. How is this possible? Older boats typically only have one alternator so some kind of “split” charging is needed. This means that while the engine is running the charge goes to both the starter and domestic batteries, but once the engine is shut down, the batteries are “separated” so the starter does not get discharged by domestic services.
There are a number of ways of doing this. A split charge relay can be used. This is a simple electro mechanical “switch” that closes when the starter motor is energised and ensures charge flows to both sets of batteries, then opens when the engine is shut down so both battery banks are isolated. Alternatively a split charge diode can be used. This is an all electronic device that performs the same task BUT diodes introduce a voltage drop of a little over 0.5 volts – this hugely reduces the charge.
There are also voltage sensing relays that are very simple to fit that connect both banks together when they sense a charge voltage and split them when the voltage typically drops below 13V. Newer engines also tend to have two alternators, a large output one used to charge the domestic batteries and a smaller one to charge the starter battery – this naturally keeps the batteries separated without the need of a relay or “splitter”
The second way of charging batteries is to use a built in mains powered charger. Most new boats are fitted with these as standard and they run while in the marina plugged into a land line. These use a 3 step charge process which is a much higher quality charge than that which you get out of an alternator. This works as follows:
The float charge stage is very useful as it means while plugged in you simply leave the charger on all the time, it will keep the batteries in tip top condition AND runs all of your 12V services at the same time acting like a mains powered battery in effect. This makes marina living very easy!
Chargers range in power output rather as alternators do typically from 10 amps to 120 amps depending on your budget and the speed with which you want to charge the batteries. In reality somewhere around a 40 amp charger is more than sufficient for a typical 4 x 110ah battery bank. In fact many marina berths have a limited mains power supply and large chargers can cause the trip to go off on the “post” that you connect to. Some charger manufacturers provide a way of turning down the input to cater for this.
There are devices available that will take the output of an alternator and convert it into the same 3 step charge that mains powered charges use – this is quite an expensive bit of kit but if you are relying on engine charge all the time it is well worth the investment giving you the enhanced charge quality of a land line charger.
Now we are onto the really useful stuff! Battery monitoring is very important if you are living out on the cut with no shore power land line – it’s the only way you can know what’s going on. However it’s amazing how many customers I have that don’t have any way of monitoring their batteries. So what can you monitor and what are the options?
Let’s just review battery voltages: 13.5 – 14.4 volts is a battery under charge. Once the charge stops the battery will quickly drop to 12.6 volts which is where it will sit until you start to draw power. You then have from 12.6 down to 11.5 volts as you use the battery, then it needs charging again to avoid damage.
The simplest “tool” is a volt meter. An analogue gauge measuring between 0 and 14 volts usually. Many boats have these and whilst they give you a guide ,because we are only interested in that small window between 11.5 and 12.6 its actually quite difficult to “see” where your batteries are in that small band on an analogue dial.
A better and still cheap option is a thing called a battery condition meter. These can be a similar analogue dial to the volt meter but instead of being marked up in volts the scale has a red section, an amber section a green section and a white section at the far right hand end. The gauge actually measures from 11 to 14.4 volts but the coloured scale usefully shows you where you are.
If the needle is in the green then you are ok, if it drops into amber you need to start thinking about charging and if it drops into red then you need to charge. When under charge the needle goes all the way over to the right into the white “charging” section so it also gives you a good indication that your charging is correct. (see volt meter and battery condition meter pics) These are also available quite cheaply from car accessory places in a rectangular meter about 1 inch wide and about 3 inches tall with 6 LEDs on that you can permanently fit on the boat. See http://images.npautoparts.co.uk/images/products/zoom/1339674342-59023800.jpg.
Alternatively a digital volt meter is another good tool. There are various different types all mountable like an analogue gauge. Using a digital meter you can accurately monitor that window between 12.6 and 11.5.
However the ultimate tool to have is a full battery management panel. These are quite expensive and more complicated to fit BUT give you the full picture. The battery voltage is there, plus a view of the amps you are drawing (shown as a negative figure) or charging (shown as a positive figure). This allows you to see how much current you are drawing “at a glance” and “trim” your power down if need be by turning off things that don’t need to be on. It can be a real eye opener when you are running the inverter with a big 230v load on it – you may see over 100 amps!
The third very useful bit of info these devices give is the number of amp hours used. This tells you exactly how much you have used since you last charged. Say, for example, you moor up and spend the evening with some lights on and watching the television. At the end of the evening your meter shows you that you have used 65 amp hours. When you run the engine the next day it will count those amp hours back down to zero by monitoring the amps coming off the alternator. So using this you know for sure how long you need to run the engine for. I wouldn’t be without one of these. It really is the ONLY way to know where you are with your batteries.
If you make use of solar charging, this too can be wired through the system so all solar charge will count back the amp hours too. In fact when these are installed it is essential that all services and all forms of charging are wired through the measuring bit of the monitor (called a shunt) Please contact me for further info if you would like to know more about these devices.
The various gauges described above are great for monitoring batteries that are known to be good and in use but what about when you start to have problems? What problems typically occur?
A common problem is that batteries that have been under charge for hours do not “appear” to hold the charge for very long. This is usually an indication there is a problem. A common failure of a battery is for one of the 2v cells to “die” leaving you with a 10V battery – this is because metallic substances from the plates drop to the bottom of the cell during discharge, eventually building up to a level where the cell shorts out. But of course your batteries are in a bank of maybe 4 or more so it’s not immediately obvious what is going on but what happens is the good batteries keep draining into the one with the dead cell as soon as the charging stops. The only way to check for this is to disconnect each battery so they are no longer in a bank and run a volt meter over each one in turn until you find the 10V one.
In the short term you can just leave this battery out and reconnect the remaining batteries. Strictly speaking you should then replace the ENTIRE bank of batteries as replacing just one is not a good practice as it will have different charge characteristics to the others. However if you know the remaining batteries are good then you can get away with it as long as it’s of the same type and size.
One “gotcha” to watch for is that many lead acid batteries have a little window on top of the battery that shows whether it’s fully charged by turning green. Do not rely on this as it’s only looking at ONE of the 2V cells, another cell in the battery might be dead, or need topping up for example.
Other issues can arise with the electrolyte (the acid) not being strong enough any more due to water build up and sulphation of the plates (a build up of material that stops the electrolyte reacting with the plate properly). With lead acid batteries the only way to properly identify if the battery is holding a charge is with a hydrometer. This is a big syringe type device with a float inside it which measures the specific gravity of the acid. You just draw some acid – very carefully I must add – into the hydrometer and see where the float is. This is a sure fire way of telling if a battery is fully charged.
A fully charged battery should measure 1.265 on the hydrometer. You then need to test each cell in turn, taking care not to spill any of that nasty acid anywhere! Cells that have low acid will also output a lower voltage and should be topped up with de-ionised water which can be bought in car accessory shops very cheaply. Lead acid batteries should have their levels checked and be topped up I would say every 3 months.
Another test is to monitor the battery voltage once the batteries have been charged with everything switched off and see if it rapidly drops below 12.6. If it does then chances are the bank needs replacing.
Another classic problem I see often is that without battery monitoring tools a boat owner will run their engine for a couple of hours each day but find that the level of charge seems to get less each day. This is because on day one the batteries get charged to 80% then on day two 80% of 80% and so on, so the actual capacity dwindles. Hence you can see the benefit of the proper management panel (and certainly this is where solar power charging as covered in my last article makes a REAL difference putting a small current back but all day long).
Why own just one narrowboat when you can have two? James and Lorraine Spencer have been narrowboat owners for over twenty years. Even though they now live on board full time, they still have a house as a postal address.
Took early retirement after 37 years working in a Government Dept. Decided to cruise the waterways for a few years. Instead of only alternate weekends and 2 weeks in summer. As mortgage paid we decided to retain our house in Peterborough and rent it out to our daughter and family so we still have a bricks and mortar base. This also allows us to have a permanent address for post, keep on GPs list, Electoral role etc
Have two…Aboatime (for sale at present) and Badger. Both already named when purchased. May change Badger to “Aboatime Too”
Fox Narrowboats March Cambridgshire. All usual facilities that you would expect from a boatyard. Can liveaboard in marina for 10 months out of 12 no stipulation on how you manage the two months that you should not be living aboard ie each night you are away from your boat counts towards the two months. Whilst I am working we usually go off and spend time on the River Nene in Peterborough where free moorings are plentiful. With free pump out and water facilities on the city embankment.
At least 20 years
Cash by buying first boat cheap and making profit when sold
Back at work as a QA technician (temporally)
Being iced up in the winter
Freedom and camaraderie of other boaters and users of the waterways. Inexpensive lifestyle. Drinking and steering!!
Bedroom. (Next year….maybe)
Try to moor as close as we can in towns to get to shops.
Washing machine on board (Candy Aquamatic)
Vitreous china flush Macerator. Pump out. Yes also have self pump out equipment to keep costs down.
”Dongle” T Mobile have had this for last 5 years and very happy. Also Tesco via Blackberry Smartphones
Far to many to pick one
Mastervolt 2500 invertor, small 300watt invertor for phone charging & 3Kw generator as for usage no idea
Too warm sometimes
Remember canals can freeze over for days maybe weeks in the winter so make sure you are moored close to all amenities
Are you one of the lucky few who lives the dream on board your own narrowboat full time? Would you like to share your experience with some of the thousands of potential floating home owners who visit this site? If you can spare the time to answer a few simple questions, I would love to hear from you. Just let me know so I can email the questions to you. I’ll create a post like the one above complete with a link back to your own blog or website.
Gary enjoys the best of both worlds. He’s enjoys the cosy comforts of his liveaboard narrowboat during the week on his own, then takes his washing home to his overjoyed wife at the weekends. Marital bliss!
Have always admired narrow boats and about 2 years ago I decided I wanted to buy one. I looked at some and against advice I bought one. I loved the engine room, she loved the front end but also, it was also a bargain. My pace of life meant that a narrow boat would force me to slow down and it has certainly worked.
It had a name but we didn’t know what it was when we viewed it. Amazingly it is called ‘Willow’ which is Bernadettes favourite tree.
I am on a permanent mooring. There is free water and metered electricity. We also have a toilet and waste disposal. It is at the end of the owners lease and hasn’t been looked after too well. I believe Peel Holdings are taking the moorings back next year so that may change things.
1yr 7 months
Bought outright (probably because I work too much!!)
I work in education. Another business is in the leisure industry and another in the handyman repair industry
The headroom (I am 6’5″). Other boats that wizz past ignoring any speed limit.
calmness, no rush, rain on the roof, community spirit, frost on the outside, ducks, stress free (usually)
reverse the layout
usually have everything we need but may have to walk or use a bike
save it up and take it home
Thetford cassette. Am really happy. So pleased I dont have a pump out after being iced in last year
Teather my phone or use the Dongle. Reception can be a bit hit and miss.
Just going into Lymm village from Stockton Heath. Travelling down from Glasson Dock to the start of the Ribble link
Use the batteries/inverter. Also have a generator which I have never used
Too warm at times
Rent one first (just like I didn’t) or spend time on a friends. Have offered mine to lots of people who rave about the boat but, amazingly, no one has taken me up on the offer.
Are you one of the lucky few who lives the dream on board your own narrowboat full time? Would you like to share your experience with some of the thousands of potential floating home owners who visit this site? If you can spare the time to answer a few simple questions, I would love to hear from you. Just let me know so I can email the questions to you. I’ll create a post like the one above complete with a link back to your own blog or website.
Narrowboat satellite system installer Martin Hicks emailed me to ask if I would be interested in letting you know about satellite television for narrowboats. In the spirit of providing you with as much information as possible about all aspects of narrowboats and what goes into them, I have copied his information below. Please note that this is not an endorsement of satellite television systems in general or Martin’s in particular. I know nothing about satellite systems and whether they work on narrowboats. There is a link at the bottom of the post to take you to the forum where you can add any comments you’d like to make.
Here’s the information Martin sent me…
Satellite television has two main attractions for anyone who wants to watch TV on a canal boat, firstly, you can forget ghosting, crackling sound, fading and all other problems associated with watching television when out and about. In theory a 100% perfect picture is available just about anywhere where a dish has a clear view of the satellite. Secondly the choice of channels is huge and you can pick up radio channels as well as TV.
However, receiving satellite TV is not just a matter of connecting a dish to a TV and pointing it at the sky.
In the UK, analogue is being phased out and all UK satellite transmissions intended for the UK are only broadcast in digital form, this means that a digital receiver is required as well as a digital compatible dish.
VIEWING OPTIONS
The number of channels available is far greater than with analogue TV and digital freeview with an aerial. Free to view channels change all the time, however some of the channels which are broadcast on sky and are available without any payment, these include BBC 1, 2, 3 and 4, BBC news 24, ITV 1, 2, 3 and 4, Channel 4 and 5, E4, More 4, several travel, sports, movie and general entertainment channels together with a variety of digital radio channels.
FREESAT
Freesat was set up by the BBC and ITV to ensure that everyone can access the best of free digital TV no matter where they are in the UK, Freesat brings you over 140 great digital TV and radio, favourites like BBC one, BBC two BBC three, BBC four, ITV 1, ITV2, ITV3, ITV 4, More 4, E4 and film 4 are all yours and that’s just a few and no monthly bills either, plus Freesat offers up to 70 hours a week of HD from the BBC and ITV at no extra cost.
SKY
The number of options can of course be increased to include film, sports and documentary channels with a regular monthly subscription. If you subscribe to SKY you can use your digi box from home, or even remove the card and use it in the digi box on the boat but it wont work the SKY sports and main Movies channels.
SATELLITE DISH
The dish is the aerial which collects the signal from the satellite, every satellite dish has an LNB (low noise block) this is the part of the dish which receives the signal from the satellite, it’s the mushroom like object mounted on an arm and pointing towards the dish centre.
Standard domestic satellite dish’s can be used but, for most people their size, weight and design make them a lot less convenient to carry and much more harder to set up than a purpose made portable dish. The smaller portable dish is easier to aim at the satellite and once lined up, they are not so badly affected by small movements of a boat, also a free standing dish can be sited at either end of the boat to avoid a building or a tree if necessary. If you have a large permanently mounted dish, you will have to move the whole boat.
MOUNTING THE DISH
A dish can be mounted in many ways, speed and simplicity is essential, temporary mounting can be achieved using a suction and magnetic mount, or with a special designed pole fixing bracket.
SATELLITE FINDER
With digital transmissions the satellite dish must be positioned absolutely precisely, and if it isn’t, you simply wont get a picture. A satellite finder is a device, which, using some form of indicator makes locating the satellite easy, reliable and quick.
It’s connected between the dish and the receiver and should be disconnected when the satellite has been found, used in conjunction with the test screen on the television your signal should be found within minutes.
A COMPASS
A compass is useful for checking the direction in which the dish must be pointed.
SATELLITE RECEIVER
In order to watch satellite transmissions you must have a receiver. The sky digi box is the best known in the uk, there are several different makes but they all have essentially the same features and they all perform the same task, taking the signal from the dish, unscrambling it if necessary and then translating it into a form which a television can recognise, its connected by a co-axial cable to the dish and to the TV via a scart, rf lead or HDMI cable. Sky + and Sky +HD can also be used but require a monthly subscription.
Freesat can be watched via a Freesat digi box, Freesat HD digi box, or a Freesat HDTV recorder digi box, which digi box you have depends on your requirements.
TELEVISION
You do not need a special TV to receive satellite transmissions, using a sky digi box any television of any size or type will do, as the output from the digi box can be connected to the TV’s aerial socket, scart socket or phono sockets.
INSTALLATION
Because satellite TV is such a complex subject, sensible, straight forward and accurate advise is essential, to help you set up for the first time and to get your new system working, an on site fitting service is available, this will include all cable, connectors and leads.
But importantly time spent with you showing how to set it up easily and quickly.
PRICES
AFTER SALES SERVICE I’M’ AVAILABLE TO TALK TO, A 12 MONTHS GUARENTEE ON ALL PRODUCTS, customers may wish to have a recordable freesat receiver or may choose to have a up market satellite finder and also may want a LCD/DVD TV…RECEIVERS and all TV’s CAN COME IN 12 VOLT OR 240VOLT TO SUIT REQUIREMENTS…
I just thought I would write this quick post to let you know about a very exciting addition to the site. It’s a comprehensive, sophisticated and absolutely free tool for you to use to calculate the real cost of owning a narrowboat, particularly with a view to living on it.
About two months ago I asked a chartered financial analyst to create a budgeting application for me using Microsft Excel 2007. It covered all of the costs you’re likely to face buying and then maintaining a narrowboat including the purchase costs and any additional expenses associated with it, on and offline mooring fees, boat loan repayments, licensing and BSS certificate fees, insurance, repairs and maintenance and all utility costs. There was even a section to include the total running costs for your car in case you’ve considered a life on the cut but haven’t budgeted for running your car.
I was very proud of it. I sent the beta version to over 100 site subscribers for them to review and test. They loved it too. At least the few who could open it loved the application. Sadly that was only about half of them. I had foolishly assumed that everyone in the world had a copy of Excel 2007. Of course, they didn’t. Nearly half of the testers had earlier versions of Excel, used Open Office rather than Excel or owned a Mac rather than a PC.
The test demonstrated very clearly that an application written in a recent version of Excel wasn’t going to be accessible to the majority of site visitors. I decided to have the spreadsheet translated into an application that would work straight from the site regardless of operating system or software. I’ve taken constructive criticism from the testers to make the application even more comprehensive and user friendly.
The end result is an extremely easy and free to use application that will, within minutes, give you a very good idea of both the initial cost and then the running costs of your dream narrowboat. Nothing has been left out. It’s an essential but previously unavailable tool for any potential narrowboat owner.
It’s going to be available to test next week. I’m looking for both potential and existing narrowboat owners to run it though its paces. I want to make sure that site visitors like you think it’s as useful as I do. You can see what the original software looked like here. The new application is similar, but better. At the bottom of the page, you’ll see a link where you can email me if you want to test the software. You can either do that or justsubscribe to the site below to receive notification the moment it’s released.
GREAT NEWS: Narrowbudget is now live. Click here to access your copy now!
After a stressful high-flying career, Tim now has a much more relaxed life. After building his own boat he now cruises the waterways offering a full solar power fitting service. He’s recently written an excellent and easy to understand article about the effectiveness of solar power and why he thinks every liveaboard boater should make the most of the sun’s free energy.
After spending many years in the corporate world, 12 years ago I decided to leave the stress of that world behind to both live on narrowboats and build them for a living. I now run Onboard Solar specialising in solar power systems for narrowboats. I continuously cruise, often followed by a rather smokey pirate boat. Despite the smoke I find Baddie the Pirate very enlightening!
My boat is called Shepherd’s Rest. Baddie the Pirate tells everyone I used to be a shepherd, but this is totally libellous! Shepherd is a family name.
No. However I used to moor at Alvecote on the Coventry and have many friends there so it is still my spiritual home. I can recommend the fabulous Samuel Barlow pub, a great place for a pint and a superb meal.
22 years.
Earnings from my previous highflying career!
Up until recently I was a time served boat builder. I now run Onboard Solar which specialises in solar power systems for boats, providing an all-in-one service: making sure you get the right sized system, supply of all the components, professionally fitted to your boat by myself, all for a fixed price! I also work in tandem with Baddie the Pirate who is a liveaboard boater who supplies LED lighting for boats.
Emptying the loo cassette. It’s a crap job, but somebody’s got to do it!
Freedom.
This is the third boat that I have built for myself and I think I’ve finally got it right.
I have a car that I move as well as the boat. (Though I have had Tesco deliver straight to my side hatch!)
I have a washing machine powered by my onboard diesel generator.
Thetford cassette. In the winter yes because you can empty it even when frozen in.
I have a 3G Android phone, which I use for general email and some browsing and it has a clever wi-fi hotspot facility that allows me to leave it in the window and connect to it from my laptop.
I have many favourite sections on many different canals, but if I was forced to choose I would probably go for the Macclesfield and Peak Forest.
I have 200 Watts of solar panels, which keeps all my day to day needs up and running. I have a 2.1/2Kw inverter, which I rarely use. I also have a built-in 6Kw cocooned water cooled diesel generator which I use to run heavy duty appliances like the washing machine.
Very. I have a solid fuel stove, central heating and a solid fuel range in the back cabin!
Talk to existing liveaboard owners as most will know everything you need to know about making the life a success.
You can find out more about Tim’s solar power fitting service on his web site. Tim’s excellent article about solar power is here.
Are you one of the lucky few who lives the dream on board your own narrowboat full time? Would you like to share your experience with some of the thousands of potential floating home owners who visit this site? If you can spare the time to answer a few simple questions, I would love to hear from you. Just let me know so I can email the questions to you. I’ll create a post like the one above complete with a link back to your own blog or website.