How long does a furnace last?

According to the U.S. Department of Energy, a gas furnace typically lasts 15-30 years. If your furnace is more than 16 years old, it might be time to start shopping. 

Signs you might need a new furnace

  • Noisy operation 
  • A noticeable increase in energy bills 
  • Uneven heat from room to room 

Energy-Efficient Furnaces

Older furnaces were only 56-70% efficient while today’s furnaces can be up to 98.5% efficient. More efficient heating systems save energy and money, while also reducing harmful carbon dioxide emissions.

Replacing an old heating and cooling system will reduce your monthly energy bills. And, Minnesota’s energy utilities offer rebates for high-efficiency furnaces and furnace tune-ups. Rebates vary by company and from year to year. Contact your natural gas utility for more information.

Furnace Repair

If your furnace suddenly stops working, we do our best to restore your home to safety and comfort quickly. Air knights Heating & Cooling services all furnace brands.

Air Knights Heating & Cooling never charges extra for evening, weekend, or emergency services! 

Furnace Tune-Up 

In Minnesota, even in summer, winter is always right around the corner! Don’t wait until the first cold night to find out your furnace isn’t working.

Fall is the perfect time to make sure your furnace is operating safely. Energy Star recommends having your furnace inspected and maintained every fall. A furnace tune-up is crucial for high-functioning, dependable heat. A properly functioning furnace helps keep your family safe and comfortable.

Regular furnace maintenance and repair service: 

  • Extends the life of your furnace 
  • Provides cleaner, safer heat 
  • Uses less gas and electricity 
  • Saves you money 

Our furnace maintenance includes a full inspection for safe and proper function

  • Check filters
  • Check compressor performance
  • Freon charge and all safety controls
  • Test crankcase heater, operating pressure
  • Inspect condenser coil, evaporator coil, evaporator drain pan, condensate drain
  • Tightening electrical connections and measuring voltage and current
  • Checking thermostat settings 
  • Lubricating moving parts
  • Inspecting the condensate drain
  • Installing a new filter to improve indoor air quality 
  • Inspecting pilots and safety controls 

Beat the seasonal rush! Schedule your furnace inspection today. Complete the form on this page or call 612.314.8886

Request an Appointment

Please complete the form and we will contact you to confirm your appointment. Or call 612-314-8886.

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Save Energy and Money

No extra charge for emergency service
18 month 0% Interest financing
Utility company rebates for high efficiency equipment

Don't wait until a dangerously hot day to find out your air conditioner isn't working. Keep your family safe and cool with a complete air conditioning inspection and tuneup.

Avoid a last minute phone call. Schedule an appointment for your air conditioner inspection and tuneup today.

Watch the Lennox Ultimate Comfort System Video


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Air Knights Heating & Cooling Customer Reviews

“Phenomenal service. I definitely will recommend for anyone that has heating and cooling issues. Paul was professional, and provided excellent information that every home owner should know.

Paul Petersen

Plymouth MN

“Very professional and prompt company. Great customer service and communication. Technician Pasha was very Knowledgeable and Helpful. Thank you ”

Roman Deshitsa

Minneapolis MN

“I had Air Knights install two furnaces for two different houses.  My experience was very positive. Paul (the owner) did quality work and he completed the work very quickly. He has very good customer service skills. He called back the next day to make sure everything was working well.”

Tony Santos

St Paul MN