Furnaces have an expected useful life of about 15 to 30 years. That’s a long time. So, if you plan to purchase a new furnace, you want to invest in the best unit for your home.
Ultimately, you want a furnace that heats your home efficiently, quickly, and evenly. Proper sizing matters, but so does the type of furnace.
As the go-to contractor for HVAC services in Greenwood, Indiana, our crew at Complete Comfort Heating, A/C & Plumbing Repair delves into the single-stage vs. two-stage furnace debate. Continue reading for a breakdown of the main characteristics, pros, and cons of single-stage and two-stage furnaces.
At the end of this post, you should be able to determine which type of furnace works best for your home.
What Is a Single-Stage Furnace?
As the name suggests, a single-stage furnace runs on one consistent power mode or level. Whenever you power on a single-stage furnace, it runs at full power, warming your home until it reaches the desired temperature.
Single-stage systems rely on a thermostat to detect the room’s temperature and turn on and off to meet that preset temperature. These furnace systems also rely on ductwork to transport heat throughout your home.
Without a proper ductwork system, you may notice cold spots throughout your home.
Pros and Cons of Single-Stage Furnaces
Because a single-stage furnace features a relatively basic design, it costs less than a two-stage furnace to purchase upfront. While suitable for smaller homes and apartments, these systems struggle to heat large or multi-story houses.
The simple design of a single-stage vs. two-stage furnace also makes repairs cheap and parts easy to get. Because the furnace runs at full capacity when you power it on, areas near the vents warm up quickly.
Before the rest of your home’s temperature catches up, the thermostat may shut off the furnace prematurely, “thinking” that the entire space has reached the desired temperature. This often causes cold spots in your home.
To avoid cold spots, many homeowners set the thermostat to a higher temperature. Unfortunately, a higher heat setting consumes more energy.
What Is a Two-Stage Furnace?
Two-stage furnaces can operate at two different power levels: high power and low power. The furnace will primarily run at low power to save energy and switch to high power mode if outdoor temperatures drop drastically.
However, these systems switch back to low-power once conditions change. The inherent flexibility of two-stage furnaces earns them the name: modulating furnaces.
Many property owners settle for two-stage furnaces because of their enhanced features. They offer an unparalleled blend of efficiency and power. If you live in an area where winter temperatures often dip below freezing, a two-stage furnace will come in handy.
When it comes to achieving the best indoor air quality and comfort, two-stage furnaces outperform their single-stage counterparts.
Pros and Cons of Two-Stage Furnaces
The ability to switch power modes allows two-stage furnaces to run more efficiently than single-stage furnaces. The low power mode allows the unit to conserve energy while minimizing uneven heating and temperature fluctuations throughout your home.
With high and low settings, two-stage furnaces typically run quietly. They also boost air quality by flowing air through the air filter, removing pet dander, mold, pollen, and other contaminants from your indoor air.
If you plan to put your house on the market, a two-stage furnace will make it more attractive to potential buyers. Energy-efficient, long-lasting features make property listings more appealing.
That said, the lower energy bills and improved comfort come at a higher initial cost. Expect to spend several hundred dollars more to buy a two-stage furnace compared to a single-stage furnace.
Single-Stage vs. Two-Stage: Purchasing Decision
A single-stage furnace will adequately meet the heating needs of a small-to-medium-sized, single-story home. However, a single-stage furnace may still prove viable if you have a larger home and need an urgent furnace replacement but also plan to move soon.
If you won’t live in a particular property long enough, you may not enjoy the benefits of the energy savings of a relatively costly two-stage furnace.
Two-stage furnaces, on the other hand, prove worthy investments in two or multi-story homes in which the owners intend to spend several years or more. These systems also work well for situations where you have a more flexible budget or you experience harsher climates.
You may also want to consider a two-stage furnace if your current single-stage unit struggles to heat your home evenly.
Which Type of Furnace Best Suits Your Home
Ultimately, you want a furnace that will give you the best return on your investment. The right model for your home depends on factors like your budget, climate, how long you intend to live there, your home’s size and layout, your home’s unique heating challenges, and personal preference.
Many factors affect your decision to settle on a particular type of furnace. Sure, two-stage furnaces have more options, but they also have drawbacks that might make a single-stage furnace a better option for your unique situation.
Always compare your options thoroughly before making a purchase decision because, in most cases, a furnace is a long-term investment. Seek advice from an HVAC expert in your area. A local professional will provide personalized recommendations to keep your home comfortable.
Count on Complete Comfort Heating, A/C & Plumbing Repair for All Your Furnace Needs
Are you in the market for a new furnace? Perhaps your cooling system struggles to keep your home cool. Whatever your HVAC or plumbing needs, we have what it takes to restore your comfort.
Our competent crew does it all, from electric, oil, and gas furnaces and heat pumps to air conditioners and water heaters. We treat every property with respect and use similar systems to what we install in our own homes.
When you work with us, expect the same dedication and commitment to quality every time.
Call Complete Heating, Air & Plumbing at (317) 678-7232 for top-tier heating and cooling services in Greenwood, IN, and beyond. Reach out for more information on a single-stage vs. two-stage furnace or energy bill saving tips.