The most authoritative answer in 2024
-

-
William Brown——Works at Amazon, Lives in Seattle, WA
As a rule of thumb, you'll need roughly 10 watts of heating power for every square foot of floor area in the room. This means that a 1,500-watt heater can be the primary heat source for an area measuring up to
150 square feet.
read more >>
About “150 square feet、150 square feet、150 square feet”,people ask:
QuesHub is a place where questions meet answers, it is more authentic than Quora, but you still need to discern the answers provided by the respondents.