At this point I am going to wait till I get a heat pump as old habits have become a way of life.. My house is a split level, with a open stairway and the front door entrance is split between the two floors.
I am spoiled
, I like having my house up to temperature at night as like today I'm up at 5 in the morning, tomorrow could be 7:00, i may stay up till 11:00 I may stay up till 2 either way my house will be warm. I do concede / understand how the heat loss increases with higher temperatures or in short its takes much more energy to heat a few degrees when battling the cold then it does to back it off a few..