Most, if not all of these tank heaters turn on at 45 deg F and off at 60deg F and if you have any appreciable liquid in the tank and below freezing temps they will NOT cycle at all. Or that is at least my experience. Very very difficult to use them unless you are plugged in, especially since it is winter and cloudy and crappy as pointed out above.
You are probably correct, but I have no way to test it myself. It would be interesting to get field data on solar panel output each month from RV owners around the country.
Most, if not all of these tank heaters turn on at 45 deg F and off at 60deg F and if you have any appreciable liquid in the tank and below freezing temps they will NOT cycle at all. Or that is at least my experience. Very very difficult to use them unless you are plugged in, especially since it is winter and cloudy and crappy as pointed out above.
I think you missed the part about winter in Idaho. No way a 100 watt Panel is going to generate 300 W/H/D in the winter in Idaho.
You are probably correct, but I have no way to test it myself. It would be interesting to get field data on solar panel output each month from RV owners around the country.