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Furnace FAQs

Q: What is AFUE?

The acronym stands for “Annual Fuel Utilization Efficiency.” It can partially be considered a counterpart to the SEER rating used for AC systems, and basically it’s a measurement of how well your furnace converts fuel (gas or oil) into heating energy. The higher the rating, the less the system wastes energy, so in general you want as high an AFUE as your budget can comfortably allow.

Q: When should I replace my furnace?

The lifespan of a modern furnace can swing a bit, but can usually be expected to range within 15-20 years. This depends on how heavily the unit is used, whether or not you get annual furnace maintenance, the type of system you have, the unit’s AFUE, and more factors.

Q: How can I increase my furnace’s energy-efficiency?

There are many modern advancements that can help you with this. For starters be sure to get routine tune-up and maintenance services. They’re a stress-free and low cost way to drastically improve and maintain efficiency. Beyond this keeping up with good heating practices is important. Accessories like programmable thermostats and humidifiers can help quite a bit as well.

Q: Can a humidifier really add efficiency?

And comfort, in fact! Adequately moist air carries heat better, helping minimize cold spots and assisting your system in heating your home more evenly. That means the unit has to work less hard, and thus use less fuel to get the job done. Plus you’ll deal with a lot less dust!

Q: Is a gas or electric furnace better?

Honestly speaking there is no “better.” It’s all about matching your needs with the right system. Electric systems are easily accessible, typically cost less upon purchase (though cost more to operate), and not everyone has access to natural gas. Gas furnaces are very powerful, last longer than electric furnaces, and usually cost less to run and operate.

Q: Does a gas furnace still use electricity?

It does. Many systems including the thermostat, the ignition, and blower systems all use electricity to operate. That means the whole myth of “works when the power’s out!” is just that. A myth, unfortunately.

Q: How do I know when I need repair?

Any time your system is acting unusual is a good time to call in an expert. The cost of a diagnosis is far less than what usually happens if systems are left to get worse (aka furnace replacement). Call an expert if your system is:

  • Operating less effectively than usual
  • Leaving cold spots
  • Leaking water
  • Making loud or weird noises
  • Costing more than usual to run

Q: When is it a “heating emergency”?

Any time you’re uncomfortable! At the same time we understand that most folks would prefer to not call for emergency service unless they have to. Generally we would recommend calling for emergency service for electrical-related issues, loud noises (they usually mean busted parts), if the unit is blowing cold air, or for unusual odors related to gas.

Q: Why does my furnace smell odd?

That depends on what kind of odd smell you’re dealing with. Dusty, musty odors can be normal at first fire-up at the beginning of the winter. If the odor persists then you probably need to clean your vents, or the unit needs a tune-up. Sulfurous, rotten egg-like odors indicate a gas leak and that’s very dangerous. What you’re smelling is mercaptan, an additive gas companies put in natural gas, which is usually odorless on its own. Shut off your gas and call for service ASAP!

What to expect
Service Scheduling
Contact us today by calling us or completing our online form to schedule your service appointment.
Arrival Text or Phone Call
Your Mountain Air tech will call you when they’re close, so there’s no need to wait around on us all day.
Issue Diagnosis
Your tech will carefully inspect your HVAC system to figure out what the problem is.
Upfront Pricing
Once the issue is diagnosed, your tech will explain possible solutions and the pricing for each, so you make the right decision.
Stress-Free Repairs
Your experienced tech will get to work on resolving the issue while you simply sit back and relax!
See What Our Customers Are Saying
The technician who did our furnace maintenance was very professional, he took the time to explain what he was doing, and he made good solid recommendations regarding the furnace.
Scott and Geri Conlin
05:27 28 Nov 20
Jim came out and did a wonderful job fixing our furnace even after the supply house gave him the wrong part. Jim thank you for fixing our furnace even with the extra trips!
Scott Gerhardt
23:47 27 Nov 20
We feel so lucky we chose Mountain Air to come evaluate our furnace! After a long morning and a nasty gas leak, Mountain Air came into our home and went above and beyond in diagnosing the gas leak our furnace was having. They suggested we shut down and not use the furnace any more, and offered to let us borrow a space heater in the meantime. Within a half hour, sales tech Drew showed up and broke down the cost of new heating systems. He was able to schedule us for installation within 48 hours.The installation techs, Kameron and Michael, were courteous, competent, and thorough. They provided us a quality product and stayed well past dark explaining all the features of our new system. It was Thanksgiving Eve, but we felt no rush on their part; they wanted to make sure we were comfortable before they took off. We are so happy to patronize this company, and will continue using Mountain Air from here on out!
Adrienne Pierce
16:35 27 Nov 20
I called at 7:30am and had JD arrive just after 8 for a furnace repair. The part that went out would cost maybe $1000, he was so helpful in showing how the part went out and setting up for Chad to come out for a new furnace. Chad showed up just after 9 and had great information on the different options for our unfortunate situation. I could not be happier with the quality of costumer service I was provided with from everyone I dealt with. Thank you so much!
Brooke Olson
02:22 24 Nov 20
I highly recommend this company. After calling them, they had a Technician out the very next day (a Friday) to give me a quote. The price was very reasonable and I compared them to two other quotes from other contractors. Additionally, they had 2 Technicians/installers (Rob and Garrett) to my house first thing Monday morning! Rob and Garrett were professional, proficient, and did an amazing job. Compared to other contractors I've worked with, these guys exhibited very high quality in all aspects of their service. I highly recommend Mountain Air, Rob, and Garrett!
Ben Boyette
23:52 23 Nov 20