What Size Furnace Blower Motor Do I Need

An internal blower or fan pulls air into the furnace where it absorbs heating energy as it passes across the heat exchanger cells.

What size furnace blower motor do i need. If the furnace s blower motor goes bad you ll need to either repair or replace it. What size furnace do i need for my home. And if you re in need of a new furnace now is the time to act. Whether it operates on natural gas propane heating oil or electricity a forced air furnace warms up a heating element or heat exchanger inside the furnace when the home thermostat signals a need for heat.

That s because choosing the right furnace isn t as simple as looking up a home s square footage on a chart. Most homeowners know that installing a furnace isn t a diy kind of job but you might be surprised to know that merely sizing a furnace requires some special knowledge. Last time i went to the store and had them look at the one i had and replace it with one of the same type. The size of the home is the first obvious factor in determining the furnace size but there are many other considerations also.

Example furnace blower motor on amazon a o. Keep reading to learn more about choosing whether to repair or replace the blower motor on your furnace. 3 easy steps for sizing your home s furnace. Whether a home is open with a few large rooms or closed with.

Most furnace motors use a 1 2 inch but sometimes they can be different. Posted on november 30 2018 by rick welter. I need to replace my furnace blower. I have done it at another house in the past but i suspect in my current house the blower is not the right size.

Smith century dl1056 1 2 hp 1075 rpm 3 speed 115 volts6 5 amps 48 frame. Here is an example of a furnace blower motor on amazon. Opting for the latter sometimes isn t the best choice. What size furnace do you need.

But the average homeowner can t simply go out and buy just any furnace. Box type note icon none operating range blower table. This chart shows the blower details for a 120 000btu furnace. They are dc motors that use a built in inverter and magnet rotor delivering better energy efficiency than furnaces with ac motors.

You can see the listing description the specifications are listed for the motor. The first is just use 400 cfm per ton. I don t want to do that this time unless i know i have the correct size in there but i don t know how to figure it out. It is difficult to find a 40kbtu furnace that can move 1000 cfm at a reasonably high static.

In attempting to determine the turnover rate and blower size i m finding two unsatisfactory answers. Variable speed furnaces contain an ecm electronically commutated motor blower motor which allows the furnace to operate at higher efficiency levels. Like a popular meme or television show might tell you.