Heating Capacity Square Footage(Hot Climate) Square Footage(Cold Climate)
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15,000 BTU 500 sq ft 270 sq ft
16,000 BTU 530 sq ft 290 sq ft
20,000 BTU 600 sq ft 360 sq ft
30,000 BTU 1,000 sq ft 500 sq ft
How many BTUs do I need to heat 1500 square feet?
45,000 to 90,000 BTUs
What size furnace do I need for a 3000 sq ft home?
The general rule of thumb is that you want 40-45 BTUs of heat per square foot of your home. So, if your home is 3,000 square feet, you'll want a furnace that produces between 120,000 BTUs and 135,000 BTUs.Nov 8, 2019