[bluGill]

Modern insulation with hvac is better yet. You need hvac to bring air in as a modern house should be air tight. Not much heat or ac should be needed.

[maccard]

I’m inclined to agree, even in cold places. AC is remarkably efficient, especially when you reverse it (and get a heat pump).

[rrr_oh_man]

…but when electricity dies down, you’re basically fucked.

[maccard]

My main source of heating is a gas boiler, but it requires two pumps to actually push the water around. If our power is out we have no heating.