It's 22 degrees outside. My heat is at 62 during the day and 56 at night. I'm cold most of the time. It's even worse when we lose power. Be careful when you make assumptions.
We had a 'heat' wave today, got to around 20 something... Barely hit 10 degrees if that, during the day this past week. Nights, zero or lower ... wind chill much lower ...
This past Saturday, my neighborhood and extended area lost power, due to a fire at a substation .. No power for nearly 10 hours, not sure we made it to 10 degrees, that day, as I have stopped keeping track of how cold it actually is. I found out that I could still start a fire and produce enough heat to function.
As a general 'rule' making assumptions is NOT one of my faults.. It is about 17 degrees here right now, and I am most fortunate to have power.