THE 2-MINUTE RULE FOR HOME

FYI I are in a elevated ranch, the stove is from the basement, non-insulated block wall, the upstairs is about 1200sqft sorta open floor strategy, basement area is about 500 -600 sqft. I able to continue to keep the upstairs livingroom about 70deg when its about 10deg outdoors, clearly the basement is much hotter.The houses created many years in th