Frequentlyasked questions from our certified technicians
Frequentlyasked questions.
What size furnace do I need for 1000 square feet?
A basic rule of thumb is that it takes 30 BTUs for every 1,000 square feet. At the most basic level, if you have a 1,000 square foot house, you’ll look for a furnace that has 30,000 BTU output.
