Unfortunately there are way too many variables just to answer that definitively.
If you put a thousand Watt resistive heater in a room 1,000 watts will generate 1000 watts worth of heat give or take. But if you use a heat pump, 1000 watts of power can be used to move 3,500 Watts worth of heat outside to in. Speaking from a theoretical power concept.
If you're heating your entire house to 20 or 30° above ambient, you'll have losses on the roof in every wall, If you're just eating one room all you have are the losses of that room so insulation becomes a weird thing to calculate.
You can't just let your pipes freeze if you're a freezing zone, but generally unless you're central is super efficient, maintaining a comfortable temperature in one room is more cost-effective, heating one room should cost somewhat less than try to heat the whole house no matter what method you're using.
The problem isn't that they won't create them, there's insufficient biomass to populate them.
If I want to talk about a 5-year-old video game with myself, I'll just open Notepad.