Hi again, Getting back to the original post, I believe the criteria was for low power consumption
as he won't be plugged in to shore power
. The hydronic heater is a fuel
hog and a power hog. I read on Sure marines site that it uses up to 7-8 gallons of fuel
a day and draws 7.5 amps. This is for the small unit. On the west coast
that would be about $30 dollars a day for the fuel and two or three times more draw than my fridge. Yikes! Compare that to two sigmars burning two to three gallons a day total and maybe one amp /hour for misc fans and the small impulse pump. My relex heater with six radiators burns 1-2 gallons a day and is rated for 70,000 btus. One small pump at half and amp/hr, and that is it. It also keeps the engine
warm and provides hot domestic water
for showers etc.