Comment on Interior Door Question
Wxfisch@lemmy.world 1 year agoNot all modern furnaces and water heaters pull in outside air. Less expensive gas furnaces may still use interior air for combustion and almost all gas water heaters will. Heat pump water heaters absolutely need ventilation to work correctly as well.
grayman@lemmy.world 1 year ago
I was trying to not be too pedantic, but correct. Good points.