well it got cold enough this weekend. it was about 0 to under 20 outside this weekend and the upstairs was kinda cold. The englander 30 is having a hard time keeping up in the split foyer house. it's nice and warm in the basement but upstairs not to so much. if it' 20 or above, it does really good. our electric bill was cheap last month. but the weekend i turned the heat upstairs on. feels much better and nice and warm. i think last night the stove was cranking 750 on the stove top and the up stairs was about 70. not to bad, but just wish i didn't have to run the heat upstairs.