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Is It Time To Upgrade Your Heating System?

At Preferred Air, we believe that maintaining the system that works for you is the best option. That being said, if your furnace is over ten years old, a replacement may be worth considering. Within the past ten years furnaces have improved in efficiency, and replacing an old furnace can save a homeowner up to 50% in heating bills.

Types of Furnaces

  • Central Warm Air or Forced Air Furnace

  • Steam or Hot Water System

  • Gas Furnace

  • Electric Furnace

How it Works

Although there are different types of furnaces, they generally work by first heating air and then utilizing ductwork to circulate it through your home. Efficiency of a furnace is measured by how much fuel the furnace converts into heat during a year. This is called the annual fuel utilization efficiency or AFUE.

In the 1990s and earlier, furnaces had a 65% or less AFUE. This means that 65 percent of the fuel was converted into heat, while the other 35 percent was lost. Today’s furnaces have a 80% or higher AFUE. This efficiency means the unit uses less fuel and produces less pollution, resulting in a lower cost for you.

Call us at 978-750-8282 or

Furnace Maintenance Tips

Whether you’re installing a new system or fixing what’s existing, good maintenance helps with energy efficiency and the lifespan of the equipment:

  • Clean or change air filters every three months (more frequently if you smoke or have pets).

  • Keep registers clean and unobstructed.

  • Inspect and tune the system every year by a qualified professional.

For greater efficiency, seal your ducts; air ducts can leak up to 20% of the air that passes through them. 

Why Preferred Air?

We have worked in the North Shore area for over 25 years, servicing, repairing, and installing air conditioning and heating systems. We can help you get the most from your existing system, as well as provide excellent guidance and reliable service if installing a new system is right for your needs.

Call us today and we would be happy to discuss your specific heating needs and find the best solution for your home or business. 978-750-8282

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Celebrating Serving the North Shore Since 1991

These guys were awesome! I had Rob come out for my yearly maintenance on my furnace before the cold weather set in. He was professional and explained things well. He was on time too! They were about $100 less the other people I got quotes from and it included a new filter! So pleased.
Grace T, Boston MA
Brian just left and he is a Godsend! He made several calls to clear the work with my working husband and myself, all of which he did with great patience and professionalism. He was easy to talk with and showed me respect... I would refer this company to my best friend and family anytime!
Lynne M, Topsfield, MA
We have been using PREFERRED AIR for a number of years. I have nothing but praise for them. Our technician Louis is very professional, courteous and always takes the time to explain whats wrong in layman's terms. Thumbs up to a great company, who has top notch people working for them.
Margaret M, Beverly MA
Preferred Air has done countless jobs for me. Installations, maintenance, repairs, you name it. There is a reason you continue going back to a company time and time again, quality, service and knowledge, each and every time the folks at Preferred Air have exhibited all three.
Steven F, Swampscott MA
I found a puddle of water around my HVAC and was very worried. I called them at 7am hoping to only leave a voice message. Louis answered the phone and he was professional and compassionate. I really appreciate his help. Preferred Air will be my go-to company for any future issues!
Danielli T, Frederick, MD
This is a great company that installed a new system in our home. They did a great job and I highly recommend them to anyone who needs a replacement system. They were quick, friendly and professional. The cost was reasonable and we were very happy with the end result.
Ronald C, Peabody MA
Luis was awesome!! He was extremely professional and it was obvious from the outset that he knew exactly what he was talking about. He checked everything thoroughly and advised me on the things that I could do on my own to fix any future issues. Highly recommend!! A++++++++
S.B, Beverly, MA
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Preferred Air Inc.