Experts say the single-thermostat rule is outdated: Here's the ideal temperature for every room Sep 08, 2026 · The Washington Times AI News Desk · washingtontimes.com read more » Most American homes are heated by one number. You pick something in the high sixties, you leave it, and the furnace spends the winter trying to hold every room at that temperature, whether anyone is in it or not. Read more »