If you feel like your heating bills are too high, it may be time to consider a new furnace for your Grand Traverse County home. The annual fuel utilization efficiency (AFUE) of a furnace tells you how much of the fuel it uses is actually transferred to heat for your home. Some furnaces older than 10 years only have an AFUE of up to 65 percent, meaning that only 65 percent of the fuel burned is actually used to heat your home. The remaining 35 percent is vented outside in the form of exhaust. A condensing gas furnace has an AFUE of at least 90-98 percent, making it the most efficient choice for heating your home.
Conventional vs. condensing gas furnace: What’s the difference?
There’s one main difference between a condensing furnace and a conventional furnace: The latter has one heat exchanger that warms the air for your home. A condensing furnace, on the other hand, has a secondary heat exchanger that recovers the exhaust from the primary heat exchanger and uses it to heat more air. This results in considerably less wasted fuel and more efficient use of your energy dollars.
Condensing furnaces come with a variety of options as well. These include:
- Variable speed fan blower, which modulates with the real-time heating needs of your home. In warmer weather, the blower motor slows down, using less electricity and heating your home more efficiently.
- A modulating gas valve, which regulates the fuel consumed, from 30 percent of capacity to 100 percent, depending on your home’s heating needs at any given time. This translates to less fuel being used to provide the same level of comfort.
- Electronically commutated motor, or ECM, which is like those used to cool computers. ECMs use 75 percent less electricity and are much quieter, whereas conventional furnaces utilize noisy, electricity-sucking split-capacitor motors.
For more information about how a condensing gas furnace can dramatically lower your heating bills, please contact us at Team Bob’s Heating Cooling Plumbing. We’ve proudly served the Grand Traverse County area for over 30 years.
Our goal is to help educate our customers in Traverse City, Michigan and surrounding areas about energy and home comfort issues (specific to HVAC systems). For more information about Condensing Gas Furnaces and other HVAC topics, download our free Home Comfort Resource guide.
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