Differences Between Single Stage, Two Stage & Variable Speed Furnaces

When you’re in the market for a new furnace in Massachusetts, you certainly have several options from which to choose, and there are several factors that must be taken into consideration. One of the biggest decisions you’ll encounter is whether you should opt for a single stage, two stage or variable speed furnace.

Here’s a bit more information on these types of furnaces to help you make a more informed decision.

Single Stage, Two Stage & Variable Speed Furnaces

Single Stage Furnace

A single stage, or one-stage, furnace means exactly what the name sounds like – it only has one setting. Whenever it’s turned on, this type of furnace is running at full capacity regardless of the outside temperature. Single stage furnaces are less efficient than other types because they’re always running at full blast.

Two Stage Furnace

Two stage furnaces have two output levels – low and high. Most of the time, these furnaces operate on the low setting. They only kick into high gear when an extra boost is needed to raise the temperature in your home. Two stage furnaces generally only operate on high about 25% of the time.

These furnaces run for longer periods of time, but they provide more even heat distribution throughout your home. Most homeowners find that two stage furnaces are quieter than single stages furnaces, and they usually don’t need to adjust their thermostats as often.

Variable Speed Furnaces

“Variable speed” doesn’t actually refer to the furnace itself. Rather, it refers to the system’s indoor blower motor. The motor operates at varying speeds to accurately control the flow of heated air throughout your home.

Variable speed furnaces feature advanced technology that allow them to constantly monitor and adjust blower settings as needed. This allows for more efficient operation, and variable speed furnaces also offer the greatest comfort for homeowners. They’re quiet, provide improved indoor air quality, and they’re an excellent choice for many homes.

New Furnace in Massachusetts

If you’re in the market for a new furnace in Massachusetts, contact us today. We will help you choose the type of furnace that’s best-suited to your needs and your budget, and you can count on us for fast, professional installation at a time that’s convenient for you. To learn more or to schedule an appointment, please give us a call at 508-881-1500 today.

Our level of commitment to our customer and superior service is the reason you can find comfort in choosing Nicholson Plumbing, Heating & Air Conditioning.

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  • Francis from Nicholson Plumbing and Heating was excellent. He was here to evaluate HVAC in our home. He was very patient and answered all my questions. He is also polite and easy to communicate with him. He explained technical concepts to me in layperson terms!

    - Shelley S.

  • Nicholson offered what is possibly the best customer service I have dealt with in a home repair situation.  I called them because I was looking to replace my very old furnace.  They came out to do an initial estimate, and then came back when I had some further questions about my options.  After installing the furnace, they ran into some problems with my air ducts.  This happened on a Friday, and the problem was fixed by Monday afternoon.  In addition to their excellent service, they did quality work at a fair price.  I would recommend them to anyone looking for an HVAC company in the Framingham area!

    - Melissa T.

  • Recently used these guys because my HVAC unit AC wasn’t working (first hot day of summer).  Showed up on time, wore booties, fixed the unit.  During the visit we talked about how my unit was having problems in the winter – which was resulting in NSTAR service calls of maybe 3-4 times per season (I am on a service plan with them).   He was the first guy to tell me WHY the problem was happening, and HOW to fix it.  I find it strange that all of the NSTAR guys etc. no one took time to point out how to fix the source of the problem…Very professional, smart.  I would use them again, and plan to for the fix on my heating unit!

    - Ben J.

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