Storing hot water from Glind/Twine type heaters
Submitted: Monday, Sep 14, 2009 at 16:52
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austastar
Hi,
I'm exploring the possible use of one of these units for a camper, but I can't see any sense in not using it while the engine is doing useful work, i.e. driving the vehicle.
The idea of idling a motor to get hot
water seems wrong.
1.
I am thinking of circulating
water from an insulated storage of about 20L under the Ute tray, through the heat exchange unit.
2.
Using a normal domestic HW thermostat to stop the pump at (say) 55 C.
3.
I know the heater has to be on to get heat to exchange, but I have an idea to get around that.
At its simplest form, I could just drain the
tank for a bucket shower, though I have other plans.
BUT
Has any one else used any form of waste vehicle heat to warm
water and hold it in an insulated container for later use???
Ideas/comments welcome.
cheers
Reply By: Member - Anthony G (ACT) - Monday, Sep 14, 2009 at 17:01
Monday, Sep 14, 2009 at 17:01
I the early days of fox shooting on those cold winter nights, had a
tank made that fitted around the exhaust. When time come to wash hands, tun of the tap and hot
water. Top it up as the night went on.
AnswerID:
383117
Follow Up By: austastar - Monday, Sep 14, 2009 at 17:38
Monday, Sep 14, 2009 at 17:38
Could possibly get a good thermo-syphon from a low exhaust pipe to a higher
tank.
Any details on fitting etc?
cheers
FollowupID:
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Reply By: Member - Roachie (SA) - Monday, Sep 14, 2009 at 17:51
Monday, Sep 14, 2009 at 17:51
Yeh, no reason why this idea wouldn't work okay. You don't need to have your heater on to warm the
water if you plumb the exchanger across the heater hoses instead of just in-line in one of the hoses. It means you have to cut both hoses and insert a "T"
junction into each one. This is how my Helton exchanger came (ie: the instructions).
It wouldn't take long to heat up 20 litres , so maybe you could have a switch of some sort so you could just start heating it up half an hour (or whatever) before you're due to use the
water.
AnswerID:
383123
Follow Up By: austastar - Tuesday, Sep 15, 2009 at 08:50
Tuesday, Sep 15, 2009 at 08:50
Hi,
thanks for the heads-up on Helton, I had seen them on the web before, but couldn't find them with google.
Their
tank looks like what I need (but a bit bigger), can't find anything else like it in marine, caravan, domestic etc. All I can find have inbuilt heaters. Not what I want at all.
cheers
FollowupID:
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