When purchasing a furnace, you want to get the best value for your money. Read on to learn the difference between one-stage and two-stage furnaces, and decide which is the best option for your Indialantic, FL, home.

One-Stage Furnace: Pros and Cons

When you’re looking to invest in a high-quality furnace, it helps to understand your options. A one-stage furnace has two main components: a blower unit and the furnace itself. These furnaces are designed with one operating stage controlled by the on/off switch.

The main advantage of a one-stage furnace is its lower purchase price. Thus, when your furnace unexpectedly fails, a single-stage furnace could be a good option to stay within your budget. Fortunately, modern single-stage furnaces are quite a bit more energy-efficient than those built even a decade ago.

One disadvantage is that one-stage furnaces aren’t ideal for heating large homes, particularly those with multiple stories. Since this type of furnace functions at full blast when you turn it on, it tends to warm up the areas nearest your vents more than the further reaches of your home. This means your house could have cold spots because your thermostat may prematurely turn off the furnace, sensing that your entire home is warm.

A single-stage furnace is also less efficient than other models because it only functions at full blast or not at all. One-stage furnaces cycle on and off rather frequently. This puts extra strain on the equipment, potentially resulting in a shortened lifespan.

Two-Stage Furnace: Pros and Cons

A two-stage furnace has two different heat settings. Thus, your furnace can operate at full capacity when it gets cold and you can reduce the operation rate when you only need a little warmth. T

Two-stage furnaces are more energy-efficient than one-stage models because they are capable of operating at a reduced capacity. They also provide more consistent comfort and stable temperatures throughout your home. They do so by running at a slower speed for longer periods of time.

The main disadvantage for these systems lies in the two-stage furnace’s higher up-front cost.


When choosing a furnace, you need to consider the climate in your area. A one-stage furnace is often best for warm climates, while a two-stage system  usually works best for colder climates.

If you reside in Indialantic, FL, contact Extreme Air & Electric Inc for furnace installation, maintenance, and heating repair services. We will quickly schedule a visit.

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