The size of the furnace you’ll need largely depends on the size of your home. Size recommendations based on square footage are:
1,200 square foot home: 36,000 to 72,000 BTUs
1,500 square foot home: 45,000 to 90,000 BTUs
1,800 square foot home: 54,000 to 108,000 BTUs
2,100 square foot home: 63,000 to 126,000 BTUs
2,400 square foot home: 72,000 to 144,000 BTUs
Other factors that affect the size of the new furnace installation you’ll need include:
- Climate zone (for example, Edmonton is in Climate Zone 5)
- Quality of insulation
- Window thickness
- Ceiling height
- Number of people living in your home
- Preferred temperature
- Size and state of the basement
For more info om furnace shopping, read our full article on “how to choose the right furnace“.
