lw395
Well-Known Member
Electronics can have a short life on a boat.
The humidity from a stove used as a heater is not going to help.
How do you know your CO alarm still works?
A gas alarm you can test with a lighter.
Really small heater for 18ft boat
- Thread starter chrisbitz
- Start date
Electronics can have a short life on a boat.
The humidity from a stove used as a heater is not going to help.
How do you know your CO alarm still works?
A gas alarm you can test with a lighter.
AntarcticPilot
Well-Known Member
Reading the description, yes it is more than something for burning leaves and so on in. It speaks of low temperature gasification, which implies partial combustion to generate inflammable gas, and then burning the resulting gas to provide a hotter flame. The photos of the flame bear this out. So, there must be a combustion chamber with a regulated air supply to create gas, and then a burner to burn the gas. It does seem an interesting idea. That said, I doubt if it is THAT complex a piece of fabrication, and the price did seem a bit steep!
The obvious advantage is that it can use pretty well anything that will burn.
SvenH
Well-Known Member
Yes you are too cynical.
First of all, it is probably foolish to expect people that use this stove in developing countries to NOT use the charcoal for heating after the woodgas has been used. They have to walk far to get fire wood and then to walk some more to but charcoal in the ground...?
But...
We never did nor will get any further by dismissing ideas without trying. Big things start small. And a lot of the small trials turn out to be pointless.
But they need to be tried anyway, just for the chance of something big.
surf6ne
New Member
The flower pot method
I made a heat sink using successively smaller flower pots (see http://heatstick.com/_KanHeet01.htm). This cost less than a fiver to make. I put the pots on the Origo for 5 minutes then put candles underneath.
When the cabin is warm, remove the heat source altogether and close the hatch up.
I made a heat sink using successively smaller flower pots (see http://heatstick.com/_KanHeet01.htm). This cost less than a fiver to make. I put the pots on the Origo for 5 minutes then put candles underneath.
When the cabin is warm, remove the heat source altogether and close the hatch up.
EuanMcKenzie
Well-Known Member
Summary so far unless i've missed something
No room for drip feed heater so discounted
candles...£1
bricks on the stove etc, various heaters all generating moisture through combustion - all have condensation problems
hurricane lamp on ebay from £5....
New tilly lamp - more heat £120 from tilly
s/h small eber from ebay £200ish
or do it properly..... D2 eber kit £750 ish for package on ebay
can't see the attraction of DIY heater and suffocation risk
I reckon it comes down to how much you want to spend - you have all the options
Can the OP tell us what his thoughts are now he has all this input?
No room for drip feed heater so discounted
candles...£1
bricks on the stove etc, various heaters all generating moisture through combustion - all have condensation problems
hurricane lamp on ebay from £5....
New tilly lamp - more heat £120 from tilly
s/h small eber from ebay £200ish
or do it properly..... D2 eber kit £750 ish for package on ebay
can't see the attraction of DIY heater and suffocation risk
I reckon it comes down to how much you want to spend - you have all the options
Can the OP tell us what his thoughts are now he has all this input?
Greenheart
Well-Known Member
The whole point of my DIY solution, was to eliminate ANY chance of suffocation or asphixiation!
That's the reason - the very basic point - that combustion need not and definitely should not take place in the cabin.
chrisbitz
Well-Known Member
It would be easier for me if you could read through the older posts in here to see what we've been discussing, rather than me type it all again?
I like the idea of flowerpots as a heatstore, and Dancrane's brilliant DIY solution, and ventilation is still an issue with inside heating.
Finally, I think that a working eberspacher heater is more along the lines of £400, rather than your £200? I saw one for £200, but that seemed to require some additional work to get it going reliably..
£400 on a £2000 boat is like someone with a £50,000 boat spending £12,000 on heating..
EuanMcKenzie
Well-Known Member
eI have read them - just wondered if you had come to a final conclusion as the threads tend to go off on tangents.
I guess spending £400 on a cheaper boat may be worthwhile if what you spend it on can be taken easily to your next boat.
If it extends your sailing season so you get better value from your boat it could be seen as worthwhile irrelevant of the value of the boat.
If you take the argument to its final conclusion it probably not worth spending any money upgrading a £2k boat but people do.
My last thought is that I've just seen hurricane lamps for sale on Ebay for less than a tenner. wouldn't sleep with it on but it does offer a nice warm glow in the cabin
I guess spending £400 on a cheaper boat may be worthwhile if what you spend it on can be taken easily to your next boat.
If it extends your sailing season so you get better value from your boat it could be seen as worthwhile irrelevant of the value of the boat.
If you take the argument to its final conclusion it probably not worth spending any money upgrading a £2k boat but people do.
My last thought is that I've just seen hurricane lamps for sale on Ebay for less than a tenner. wouldn't sleep with it on but it does offer a nice warm glow in the cabin
Greenheart
Well-Known Member
I'm very certain that spending 10 or 15% of the yacht's value on extending its annual usage by a third, IS worthwhile...
...particularly if the kit you construct to heat the cabin safely (using outdoor combustion) is transferable to your next yacht...
...although as soon as we get to grips with a simple, lightweight, non-integral "suitcase heater", everyone will have one and it won't be necessary to transfer it from one boat to another.
PeteCooper
Well-Known Member
Croak
Well-Known Member
I put a 22mm copper pipe on my flower pot (for use as a chimney) and pushed it through the vent which was above my cooker then sealed the extra space, round the vent, with tin foil.
I forgot to take it down when I left the boat and as snow was forecast I ended up breaking the ice in the dark to get to my boat on new years eve. Fortunately no one called the authorities.
I forgot to take it down when I left the boat and as snow was forecast I ended up breaking the ice in the dark to get to my boat on new years eve. Fortunately no one called the authorities.
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john_morris_uk
Well-Known Member
Not sure I follow the logic of that statement. It makes as much sense as questioning why you need to put central heating in a two bedroom cottage in the wilds somewhere that cost £50,000 vs putting heating into the apartment in the centre of a city that cost £300,000. You still need heating whichever way you look at it.£400 on a £2000 boat is like someone with a £50,000 boat spending £12,000 on heating..
I do agree that there should be a sense of proportion in what you spend on a boat that doesn't have much intrinsic value - but IMHO you can't multiply the costs in the way you suggest.
The only real cost evaluation is 'is it worth it to me?' If the boat is your pride and joy and you don't intend to change it, and adding heating will extend your use, then put your hand in your pocket (if you can afford it) and buy a heater.
SvenH
Well-Known Member
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Beyondhelp
Well-Known Member
Since this thread has got more creative, here is my method show in prototype form, for my 19ft sportsboat/cuddy.
Its a 5kw Eberspacher Diesel unit from ebay for £200.
To test the system, I mounted it onto a board, with associated hardware. For the purpose of the test I used an automotive expansion vessel (I shall weld my own later) and use the Bosch pump. This will be placed right at the back of the boat with its own fuel supply. I shall then run pipework into the front of the boat with a small and automotive style interior heater matrix. I found with a moderate fan speed the D5W will maintain a continuous output at full power without too much noise. I shall by means of air vents feed it into the cabin with the hope to extend the seasons we typically get in the uk. Totally over kill for such a small boat, but no reason why not. etc.
Its a 5kw Eberspacher Diesel unit from ebay for £200.
To test the system, I mounted it onto a board, with associated hardware. For the purpose of the test I used an automotive expansion vessel (I shall weld my own later) and use the Bosch pump. This will be placed right at the back of the boat with its own fuel supply. I shall then run pipework into the front of the boat with a small and automotive style interior heater matrix. I found with a moderate fan speed the D5W will maintain a continuous output at full power without too much noise. I shall by means of air vents feed it into the cabin with the hope to extend the seasons we typically get in the uk. Totally over kill for such a small boat, but no reason why not. etc.
Greenheart
Well-Known Member
Nice bit of work, bravo!
One thing I don't understand...
"...continuous output at full power without too much noise..."
Umm...what's making the noise? The burner? The electric fan? Something other?
One thing I don't understand...
"...continuous output at full power without too much noise..."
Umm...what's making the noise? The burner? The electric fan? Something other?
Searush
Well-Known Member
Usually the exhaust. You can hear an Ebersplutter a 20 yds away, like a V1 impulse jet. The fan is pretty quiet, but the fuel pump ticks away noticeably.
Beyondhelp
Well-Known Member
oh sorry the fan, like automotive heater fans are quite often noisy on max power, but you dont want the heater to cycle too much, so found a spot for testing where it wasnt too noisy but also didnt cycle.
Have to add however, that none of this has yet been put into real life use, other than bench testing. Hope to do more with this over the winter, but got more than enough other projects on the go at the moment!
Have to add however, that none of this has yet been put into real life use, other than bench testing. Hope to do more with this over the winter, but got more than enough other projects on the go at the moment!
Beyondhelp
Well-Known Member
Agree on all counts really. I hate noise where its not necessary. Edit: my project goals are 1:safe, 2 quiet (as realistically possible) & 3 compact/self contained.
Greenheart
Well-Known Member
Best of luck, keep us posted! If I haven't blown myself into a burns unit with propane experiments, I'll do the same...
vyv_cox
Well-Known Member
Nice one. I am just about to commence the same project. Do you find you need an additional water pump? My D5W includes a water pump but it looks small to drive water against any system resistance.
