Experiments. First I want to learn to do CAD. So my drawings can be better.But I used free programs to do one. This is a water heater I will build soon.I built small ones. This will maybe hold ten gallons to use as hot water for sinks and bath.An engine supplies the heat. >>----------------------->

Clod Wrote:

Experiments. First I want to learn to do CAD. So my drawings can be better.But I used free programs to do one. This is a water heater I will build soon.I built small ones. This will maybe hold ten gallons to use as hot water for sinks and bath.An engine supplies the heat. >>----------------------->

Clod, it looks like you intend to use the engine coolant to heat the water. All well and good but it will be very innefficient. How about couipling the engine to a small generator to power a heating element too?

Yes. I have three pipes out the bottom.I looked at a 120 volt element.14 bucks for 1500 watts. But I want to finda 12 volt dc made to heat water. i saw them on diesel trucks.