water heater

#17
Using engine coolant to heat your hot water is by far the most efficient method. Its waste heat, if you can heat the camper box at the same time, even better.
You will need:
Hot water tank, http://www.defender.com/product.jsp...-gallon&path=-1|51|2234308|2234310&id=2357037
Coolant heater, https://www.webasto.com/gb/markets-products/truck/heating-systems/products/thermo-top-c/
A couple of radiators, http://canada.hudsonreed.com/heatin...qSPaYYA3TgVfhjdlcHhoCx7gQAvD_BwE&gclsrc=aw.ds
Thermostat: https://www.heatmiser.com/en/slimline-thermostat-series-2/ (slimline n works with ttc)

assorted hose, pex, valves etc.
 
#19
Thanks so much for those specifics!

Yes, when the propulsion engine or genset are running anyway, I definitely want to take advantage of heat produced for free.

But when stationary free camping for maybe weeks at a time, will directly burn vehicle fuel or propane, that will be by far the main source of heating BTUs.

But also load dumping "free" excess solar electric to a 12V DC heating element once the lead bank is past say 85% no longer accepting many amps. In fact same with production from the DC-only generator when there is excess there.

I have some off-grid forested land I may put a container-based tiny-house on, so that might add a wood-furnace heat source when parked there, but I would not bring that bit along when travelling.
 

DUTCH

Curmudgeon
#20
The Australian Kimberley Karavans and Kruisers, as well as other campers down there, use the Webasto ThermoTop for hot water and space heating. I have one in my Kimberley Karavan and it works quite well. Space requirement is quite small and it is very thrifty with diesel fuel - two gallons will easily go a month with everyday use. It does require an external outlet for the exhaust.
 
#21
Water tanks take up a lot of space. I'm using a wabasto heater with a coolant loop and a good plate heat exchanger. Very efficient and very little space.
 
#22
Water tanks take up a lot of space. I'm using a wabasto heater with a coolant loop and a good plate heat exchanger. Very efficient and very little space.
Do you have any pictures of this setup? I have the plate heat exchanger and I like the idea of the webasto especially if I can heat the cabin.
 

DUTCH

Curmudgeon
#23
Do you have any pictures of this setup? I have the plate heat exchanger and I like the idea of the webasto especially if I can heat the cabin.
This is the setup in the boot of my Kimberley Karavan.

1.) Webasto ThermoTop
2.) Glycol Reservoir
3.) Heat Exchanger for room heating.

Plumbing1.jpg