How do you size an oil furnace?

Calculating Your Basic Heating Needs You’ll want to multiply your home’s square footage by the recommended heating factor to obtain the furnace output rating you’ll need. For example: If your home is 2,400 square feet and you figure 35 BTUs per square foot, you’ll need a 84,000 BTUH-capacity furnace.

What do you need to know about furnace sizing?

To help future furnace owners out, we have developed a simple furnace sizing calculator. You only need to know two things; your home square footage and the climate zone you’re in. After the furnace sizing calculation, you’ll find how the size of the furnace is calculated. We also made 3 examples for:

How big is a 1, 200 square foot furnace?

1 1,200-square-foot house: 36,000 to 72,000 BTUs 2 1,500-square-foot house: 45,000 to 90,000 BTUs 3 1,800-square-foot house: 54,000 to 108,000 BTUs 4 2,100-square-foot house: 63,000 to 126,000 BTUs 5 2,400-square-foot house: 72,000 to 144,000 BTUs

How big is a furnace air Return Vent?

A typical supply vent is 4 by 10 to 12 inches and a typical return vent is 16 by 20 inches or larger.

Where can I find the model number of my furnace?

If you can find your furnace model number, you can skip the calculation and look up your model number to find exactly what you need. Please refer to this furnace model number decoder to help determine what you currently have. If you have issues with this, give us a call and we are happy to help.

How to determine the size of your furnace?

1 Step #1: Determine Your Climate. Here in Minnesota, our winters are harsh and dry with temps regularly falling below zero. 2 Step #2: Estimate Your Home’s Square Footage. In addition to weather and climate, the size of your home also has a direct impact on the size furnace you’ll need. 3 Step #3: Calculate the Necessary BTU Output.

What’s the correct number of BTUs for a furnace?

Multiply your square footage by 40, the lower number recommended for the climate zone. This calculation will give you 76,000 BTUs, which should comfortably keep your house warm in that climate.

Which is the most efficient oil forced air furnace?

The Patriot 80 oil furnace is exceptionally efficient The Patriot 80 oil furnace is exceptionally efficient and versatile thanks to its powerful heat exchanger that maximizes energy usage to minimize utility costs.