What happens if a furnace is undersized?
An undersized furnace is incapable of keeping up with the heating demands of a big house on the coldest days. The result is that your furnace won’t shut off automatically. It will instead run constantly, which means your heating bills will skyrocket and your furnace will break down often as well.
How do I know if my furnace is the right size?
How to Calculate the Right Size Furnace
- Calculate the square footage of your home.
- Find out What Climate Zone Your Home Is In Climate is another factor that helps determine how many BTUs you need to heat your home.
- Multiply your square footage by 40, the lower number recommended for the climate zone.
How many square feet will a 60 000 BTU furnace heat?
1,000 square feet
Heating BTUs Table (Rough Estimates)
| Home Size (Heating): | Standard Climate | Very Cold Climate |
|---|---|---|
| 500 square feet | 22,500 BTU | 30,000 BTU |
| 1,000 square feet | 45,000 BTU | 60,000 BTU |
| 1,500 square feet | 67,500 BTU | 90,000 BTU |
| 2,000 square feet | 90,000 BTU | 120,000 BTU |
Should you oversize your furnace?
An oversized furnace will lead to a premature replacement, causing the homeowner to fork out more money on a new heating system a sooner than expected. Before it reaches that point, however, the homeowner will experience a number of issues. A heater that is too big will negatively impact the entire HVAC system.
How do I know what size furnace to buy?
How to Calculate the Right Size Furnace
- Calculate the square footage of your home.
- Find out What Climate Zone Your Home Is In Climate is another factor that helps determine how many BTUs you need to heat your home.
- Multiply your square footage by 40, the lower number recommended for the climate zone.
Should I get more BTUs than I need?
More is not better. A unit with too many BTU’s, will cool the room fast, but leave the room humid. Too few BTU’s will never cool the room down and the unit will run incessantly.