What Temperatures Do Heat Pumps Work In?

A heat pump is one of the most energy-efficient approaches to heat and cool your Nashville house. That’s because they shift warm or cold air, rather than creating it. But not all homeowners have been able to use this energy-saving technology.

Previously, heat pumps were only recommended for warmer locations, since they were less effective when temperatures were close to or below freezing. When the heat pump couldn’t match demand, the heating system would then rely on more expensive electric heat as an emergency heat source to keep the house comfy.

With new technology, heat pump systems are now recommended for cold areas. Most can operate well at much colder temperatures, although some may still need an auxiliary heating system if temperatures get too chilly. But it’s essential to be aware that today’s backup heating solutions can also be more energy-efficient than previously.

We’ll go over the different kinds of heat pumps so you can choose the right one for your house.

Air Source Heat Pumps: Ideal for Moderate Areas

Air source heat pumps are the most common type of heat pump. They rely on an outdoor unit and an indoor air handler. These systems shift heat from either the indoor air during the warmer weather, or outside air during cold weather, keeping you cozy year-round.

With advances in heat pump technology, these systems can now be added in a large range of climates. But it’s important to be aware that you will probably have to have an emergency source of warmth if temperatures get colder than 10 degrees Fahrenheit. This may include a dual-fuel system with a gas furnace. Heating alternates between the two to provide the most energy-efficient heating comfort throughout your residence.

As a result of the need for dual-fuel systems in chillier climates, air source heat pumps are recommended locations without big temperature changes and more moderate heating demands.

Mini-Split Heat Pumps: Ideal for Rooms Without Ductwork in Chillier Climates

Mini-split heat pumps are one of the most adaptable styles of heat pumps since they don’t need ductwork. This means you can install them just about anyplace in your home, like a garage or addition. They’re also very energy efficient, with the majority receiving ENERGY STAR® recognition.

Mini-splits work with an outdoor unit that joins to as many as four quiet, slim indoor units mounted on your wall or ceiling. This gives you the ability to have zoned heating and cooling, with exact temperature control in each room.

Outdoor air on even the most frigid days holds some heat that your ductless heat pump can use and send indoors. Depending on the type you go with, some cold-weather mini-split heat pumps from Mitsubishi can operate in temperatures as low as -13°F.

Geothermal Heat Pumps: Recommended for Extreme Temperatures and Big Yards

Geothermal heat pumps take advantage of balanced subsurface temperatures to tremendously lower your heating and cooling costs, usually by 25%–50%! These systems have buried pipes to transfer heat to and from your house.

Geothermal doesn’t make a lot of noise and can last for many years—about 25 years for the indoor unit and about 50 years for the loop.

It doesn’t need a lot of upkeep and is ideal if you reside in an extreme climate. A lot of the time, geothermal does not have to have a secondary heating system.

However, you’ll require a large amount of space and the ideal kind of soil to add the underground loops. It’s also important to note that installation is around $20,000–$25,000 for a 2,500-square foot house. Although the installation cost is high, long-term energy savings could help the geothermal pay for itself as time passes.

Because geothermal saves a lot of energy, using it may qualify you for federal tax credits and other rebates from your local energy provider.

Your Satisfaction is Guaranteed with Our Heat Pump Installation

There’s a reason why we call our Donelson Air Service Experts heating and cooling techs Experts. That’s because they have an A+ when it comes to helping homeowners like you select the best heat pump system for their house.

But their labor doesn’t quit with heat pump installation. We back our services with a 100% Satisfaction Guarantee* for a year, because we want you to enjoy the greatest comfort you can receive from your new heat pump.

And don’t forget about special offers, rebates and financing for qualified customers. Buying a new heat pump is even more reasonable than you may think it is. Call us at 615-953-9885 to book your free home comfort assessment now!


*Not applicable to the Advantage Program. See your signed Advantage Program Agreement for full details and exclusions. 100% Satisfaction Guarantee is subject to certain restrictions and limitations as set forth in the applicable Terms and Conditions.

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