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: 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
Hillary was our sales associate and set us up with a system perfect for our tri level home to fit all our needs and concerns last Friday. She quickly got us scheduled for the following Monday for us to get a new system since ours has been dying for the last two years. Today Scott and Anmond came out and installed a whole new furnace and AC unit that we desperately needed with winter coming. They were professional, polite and great with answering all of our questions. Scott took the time to show us how our new thermostat worked and and advised us to download the app. Overall as usual I’m beyond satisfied with Mountain Air and would definitely recommend them!
Christopher Rummel
03:28 19 Oct 21
We had multiple HVAC companies who have not seen before the disaster situation our furnace and ducts were in. They gave us the best quote from competitors. Staff was professional, friendly and took the job on with a smile. Would recommend to family and friends, will use again in the future.
Heather Merry
01:56 16 Oct 21
Juan was fantastic! Showed up on time. Was very professional. Very competent. Very knowledgeable. Answered all my questions(and I had few). My wife and I are moving soon (Clearfield to Ogden). I'm sure we will be using Mountain Air in Ogden.
Craig Walbridge
15:57 15 Oct 21
I love Mountain air. Always professional and thorough . I don't trust anyone else to service my furnace, air and gas fireplace.
Judy Peterson
15:30 15 Oct 21
Great company! Drew was very helpful explaining our options and getting us set up a with a good system without pressuring us.We had our new heating and AC systems installed today and huge shout out to Cody & Scott! They did an excellent job. Cody was very friendly and down to earth and kept me in the loop every step of the way. Scott too - who spent a lot of time out in the cold setting up the AC and took care of some nasty spiders out there.They answered questions about the system and gave us a nice run through before they left. You could tell they took pride in their work, taking extra care to make sure everything was in good shape and done correctly. We are SO glad we chose Mountain Air instead of some of the competitors we looked at.
Ryan Smith
23:25 14 Oct 21