Furnaces

Close up of blue flames in a furnace.

1 year warranty.When you are paying to have your heating or cooling system repaired, you want it to last. Other companies use the most inexpensive parts and provide the shortest warranty term possible (typically 60 days). Let's face it, you wouldn't warrant something you didn't expect to last.

That's why we use top quality parts, giving us the confidence to back all our repairs with a 1 Year repair warranty.

Arizona Comfort Systems is the leading HVAC company in Sierra Vista, AZ, for your furnace service needs. We service and repair all makes and models. If you need furnace service, we are the company to call. Our skilled technicians are qualified to solve just about any repair or installation that you throw at us.

Furnace Repair

Don’t get left in the cold! Is your furnace acting up, blowing cold air, or making too much noise? Our experienced team of professionals is here to keep your home warm and cozy. We repair all makes and models, and we will never try to sell you a service that you don’t need. Our technicians are honest and hard working, and we’re always transparent and fair about the work we do.

Furnace Replacement

Sometimes a repair is not sufficient to fix your furnace. Sometimes a new furnace is the most cost-effective and energy-efficient way to go. We will always be honest with you about a possible furnace replacement. We value our time and your money––we don’t want to perform repairs or service on an appliance that is in need of replacement.

If you do need a furnace replacement, we know how overwhelming it can be. Here are some of the frequently asked questions about furnaces that we get from some of our Sierra Vista, AZ, residents:

What Are The Different Types Of Furnaces?

Single Stage: A single-stage furnace has only one stage of operation. It can either be turned on or turned off.

Two Stage: A two-stage furnace has two settings––full and half speed. This is a more efficient way to heat and provides for better comfort, because it can move the air at a slower pace.

Variable Stage or Modulating: A variable-stage or modulating furnace modulates the speed and heat output based on the temperature outside and the desired comfort level. This furnace only works as much as you need it, making this type the most energy-efficient type of furnace.

What Is AFUE?

AFUE, or Annualized Fuel Utilization Efficiency, is a measure of furnace-heating efficiency. The higher the AFUE, the more efficient the furnace.

What Size Furnace Do I Need?

We can calculate the correct size furnace for your home. The number of BTUs, or British Thermal Units, needed to heat your home is dependent on a number of variables. Contrary to what you might think, a bigger furnace may not necessarily mean more heating power for your home. Call us at Arizona Comfort Systems, and we can set up an appointment to calculate the furnace size you might need.

Need Furnace Service?

Contact the experts at Arizona Comfort Systems.

Call us at 520-415-5681!

Gas Furnace Maintenance in Sierra Vista, AZ 85635

“Matt did an excellent job. He was very thorough and made sure he had everything done properly. He is an outstanding serviceman.” – Susan S.

Gas Furnace Repair in Sierra Vista, AZ 85635

“He was very knowledgeable and had a list for us of items to take care of in the future. It was a pleasure dealing with him.”

– Denver/Sharon* – *Actually had the contact W.

Gas Furnace Maintenance in Bisbee, AZ 85693

“Auhsten was very professional! Asked if I had. Fire extinguisher or a carbon Monoxide detector. I said I really need written instructions for the thermostat.
He said he had one. I was so APPRECIATIVE of that. No one else ever seem to have one. He explained the various levels of Maintenance schedules offered. Very knowledgeable, courteous and helpful. I would ask for Auhsten to do the maintenance!”

– Gladys T.

Gas Furnace Maintenance in Sierra Vista, AZ 85650

“On time explained everything very neat”

– Kenneth S.

Gas Furnace Installation in Sierra Vista, AZ 85650

“Javier and Manuel did an excellent job installing our new furnace and A/C unit. They are highly professional technicians who know what they are doing, are very knowledgeable and friendly. Their installation was very smooth, and they did an excellent clean-up job. I highly recommend Arizona Comfort System; their installation teams are true professionals and their service technicians know our units and take care of them like their own. This is our 19th year with ACS. They definitely have a top-notch team…from their admin folks to the sales representatives to the maintenance supervisors and the service techs. Great job!”

– Tom O.

Gas Furnace Repair in Sierra Vista, AZ 86535

“Service technician was on time and was very professional. The repair was undertaken quickly.”

– Jay W.

Gas Furnace Maintenance in Huachuca City, AZ 85616

“Professional as always”

– Louis G.

Gas Furnace Maintenance in Sierra Vista, AZ 85670

“Jason did a great job servicing the system and cleaning the blower”

– Chris L.

Gas Furnace Maintenance in Sierra Vista, AZ 85650

“Jason is an excellent technician. Was thorough and quickly completed the job. He is welcome here any time.”

– Robert M.

Gas Furnace Maintenance in Sierra Vista, AZ 85635

“The service tech was knowledgeable, friendly, and thorough.”

– Ted R.


Arizona Comfort Systems proudly provides HVAC service to Benson, Bisbee, Hereford, Huachuca City, Sierra Vista, Tombstone, and the surrounding communities. Visit our service area page for more coverage details, call us at 520-415-5681, or request service online today.