Man, I can’t imagine how you could go through even 15 gallons in a week.
Maybe i’m not following, but you don’t need solar for the water heater. That DSI board draws next to nothing.
My thought here is you need to try it. Until you get into serious all day cold furnaces are not that bad. We carry a small ventless because the furnace is too much in most conditions.
Steve and Andra
2012 F350 6.2 gasser SRW LB
Fab Fours front and rear in case we run into a rhino
2019 Northstar Laredo SC