How a Heat Pump Cools Your House

In the U.S., heat pumps can be a popular option for heating and cooling your house. 

They seem about the same as an air conditioner. In reality, they run in the same way during high temperatures. Since they have a reversing valve, they can shift warmth in the opposite direction as well as add comfort to your house when temperatures drop. 

Not sure if you rely on a heat pump or an air conditioner? Just track down the model number on the outdoor unit and look it up online. If you find you use a heat pump, or you’re thinking about installing one, find out how this HVAC equipment keeps residences comfy. 

How Heat Pumps Work 

Heat pumps rely on a refrigeration system like an air conditioner. Most can run similar to a ductless mini-split, because they can heat and cool. Heat pumps have an indoor evaporator coil and an outdoor condensing coil. Refrigerant is pumped through these coils to move heat. The outdoor unit also uses a compressor and is enclosed by metal fins that act as a heat sink to help transfer humidity effectively. 

Summertime Cooling 

When your heat pump is set to cooling, the refrigerant is in the evaporator coil. Air from inside the house blows over the coil, and the refrigerant sucks out heat. Moisture in the air also condenses on the coil, dropping into the condensate pan below and moves away. The following cool air flows through the ductwork and back into your residence. 

At the same time, the refrigerant moves a compressor on its way to the outdoor coil. This concentrates the refrigerant, leading it to heat up even more. As it moves through the condensing coil, the exterior fan and metal fins help to emit heat to the outdoors. The refrigerant heads back indoors, moving through an expansion valve that cools it significantly, readying it to start the process from the beginning. 

When your heat pump is installed and maintained correctly, you’ll enjoy efficient cooling comparable to an energy-saving air conditioner. 

Wintertime Heating 

When your heat pump is set to heat, the heat exchange cycle happens the other way around. By moving in the opposing direction, refrigerant pulls heat from the outdoor air and vents it into your house to warm the interior. 

Heat pumps working in heating mode are most effective when the temperature remains above freezing outside. If it gets too cold, a backup electric resistance heater kicks on to keep your house comfy, but your heating bills go up as a result. 

Heat pumps work longer than furnaces since the air doesn’t become as heated. This helps sustain a more stable indoor temperature. On top of that, because heat pumps transfer heat rather than making it from a fuel source, they can work well above 100% efficiency. You should expect 30–40% savings on your heating bills by switching to a heat pump. 

Schedule Heat Pump Installation or Service Now 

Heat pumps are good for the environment and economical. They are an alternative to the traditional AC/furnace configuration and should have the same amount of maintenance—one inspection in the spring and another in the fall. 

If you’re interested in installing a heat pump, Service Experts Heating, Air Conditioning & Plumbing is the company to contact. We’ll size and install your system to fit your heating and cooling requirements. And then we’ll uphold our services with a 100% Satisfaction Guarantee* for a year. To find out more, contact us at 866-397-3787 today. 

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