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Furnaces

Woman cooling down with a bottle of water.

Foss Heating & Cooling is the leading HVAC company in Mount Vernon, WA, 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 Mount Vernon, WA 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.

How Much Money Can a New Furnace Save You?

Our AFUE energy savings calculator can help determine how much you could save on your utility bills. Simply enter your current unit's AFUE value and compare it to a newer, more efficient system. You can even customize it to better match your home's system for a more accurate calculation.

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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 Foss Heating & Cooling, and we can set up an appointment to calculate the furnace size you might need.

Need Furnace Service?

Contact the experts at Foss Heating & Cooling.

Call us at 360-336-1517!

Gas Furnace Repair in Mount Vernon, WA 98274

“February 24, 2020

Foss Heating:

Mason Beaver was efficient, arriving only 30 minutes from my initial call to your company, very polite and extremely knowledgeable regarding my furnace issues. He gave me options for future issues and solved the immediate problem of having no heat. He is an asset to your company, but I’m sure you’re already well aware of that.

Thank you,
Theresa Hanes” – Theresa H.

Gas Furnace Maintenance in Mount Vernon, WA 98273

“Very punctual and curious service.”

– James M.

Gas Furnace Repair in Mount Vernon, WA 98274

“Ok”

– Kenna E.

Gas Furnace Maintenance in Stanwood, WA 98292

“Mason was professional and helpful.”

– Dave H.

Gas Furnace Maintenance in Mount Vernon, WA 98273

“Friendly, professional, quick customer service.”

– Connie Z.

Gas Furnace Installation in Burlington, WA 98233

“Very professional and knowledgeable staff. Tim, Kyle and Mason were awesome and thorough. My furnace was shot and they got to me right away. Great customer service. I highly recommend this company.”

– Diane B.

Gas Furnace Repair in Mount Vernon, WA 98273

“Mason Beaver is awesome! He is friendly and respectful and professional. Mason was able to diagnose the problem with the natural gas hot water tank, and make the necessary repairs in the same visit. Mason also provided additional, helpful information regarding the natural gas furnace and several tips for additional safety.”

– Danya W.

Gas Furnace Repair in Burlington, WA 98233

“Mason was beyond helpful! Our furnace broke, and they came out immediately and repaired it before the cold weather came in. Foss has been my go to hvac service since becoming a homeowner. I would recommend them to anyone looking for quality and fast service.”

– Danielle N.

Gas Furnace Repair in Burlington, WA 98233

“Good service, and a pleasant person!”

– Helen B.

Gas Furnace Maintenance in Mount Vernon, WA 98274

“Showed up as scheduled. Friendly, explained what needed to be done. Good service”

– Boyd N.


Foss Heating & Cooling proudly provides HVAC service to Mount Vernon, Anacortes, Burlington, Bow, Camano Island, La Conner, Sedro Woolley, Stanwood, and the surrounding communities. Visit our service area page for more coverage details, call us at 360-336-1517, or request service online today.