Hot Water From Generators.

Hi Farm boy,
I have made several heat exchangers over the years out of copper tube.
Simplest way would be to get a piece of inch and a half tube and a piece of inch and a quarter tube and dress the ends in on the larger diameter tube so that you can just slide the smaller tube inside the larger one. Braze till sealed at either end and you have created a water jacket. You next have to work out how you will get the exhaust gases to go through the centre pipe.

Braze a piece of half inch copper tube in the side at one and and do the same at the other, ensuring that they only go into the space between the 2 larger pipes. You now have one piece of pipe brazed inside another with a piece of smaller pipe coming out at right angles at each end.

With a shower pump pass water through the smaller tube at one end and pipe the other end into a bucket. You now have hot water for a shower.

Best if you make the exchanger so that it is removable from the exhaust on the geny as there may be times when you do not want hot water.

If you are as capable as you name suggests this should be a doddle for you.
Regards, Bruce

Hi Farmboy

I have had similar ideas. if the exhaust could be routed through a pipe running through the water container I imagine 2 birds could be killed wth one stone so to speak.

cheers Kc

G'day Farmboy,
It is normal for ship's to use exhaust gas to make steam while underway. The boiler only runs on fuel while in port. The steam is used to heat the heavy bunker fuel so that we can pump it first, then heat it to 140° to get the viscosity down to 14 centistokes to burn.
To do this with a tiny generator would not be practical IMHO, I keep a 20 litre bucket on the campfire with creek water when I can, and this takes care of washing up and showers. So you are using waste heat from the campfire, it's just as good and cheap.
I then use a 12 volt bilge pump in the shower instead of using our limited drinking water.

Cheers,
Bill

I think you may be pushing stuff up hill.

To convert cold water into warm water using a generator's exhaust you would either need a hugh generator or a very very small amount of water.

The amount of energy (and time) you would need for 1 adult for 1 shower would cost more then buying a Coleman hot water service and the fuel to give 10 adults 50 showers.

The simplest way I can see you getting warm water is use a camp fire or an camp style hot water service.

So I don't think it will work but have fun trying.

Design / Build / Test and then go on the " New Inventors" on the ABC , you could make a fortune and have real 'happy days' ,, retro at home fit would see you in Forbes rich list !! lol.

Here you go.............if you can't stand your own smell then this is just for you'

AQUACUBE

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