Question

which heater produces more heat in 10 minutes?​

Answer 1

Answer:

For example, an 800-watt heater would deliver 2,730 BTUs and a 1,500-watt space heater would produce roughly 5,120 BTUs of heat. The higher a heater's BTU rating, the better its heating performance. The highest BTU space heater tops out at 5,120 BTUs, as the highest wattage space heater is only 1,500-watts.