How a Heat Pump Cools Your House

In Tempe, heat pumps can be a popular option for heating and cooling your home.

They seem very similar to an air conditioner. In reality, they run in a nearly identical way during high temperatures. Because of a reversing valve, they can shift heat in the opposite direction as well as add warmth to your home in the winter.

Not sure if you have a heat pump or an air conditioner? All you need to do is track down the model number on the outdoor unit and run it online. If you find you use a heat pump, or you’re thinking over buying one, discover how this HVAC system keeps homes comfy.

How Heat Pumps Run

Heat pumps depend on a refrigeration system much like an air conditioner. Most can work similar to a ductless mini-split, as they can heat and cool. Heat pumps rely on an indoor evaporator coil and an outdoor condensing coil. Refrigerant is sent through these coils to move humidity. The outdoor unit also uses a compressor and is surrounded by metal fins that function as a heat sink to help shift humidity effectively.

Summertime Cooling

When your heat pump is set to cooling, the refrigerant starts in the evaporator coil. Air from inside the house is distributed over the coil, and the refrigerant removes heat. Water in the air also condenses on the coil, dropping into the condensate pan below and drains away. The ensuing cold air circulates through the ductwork and back into your residence.

At the same time, the refrigerant flows a compressor on its way to the outdoor coil. This concentrates the refrigerant, causing it to warm up. As it goes through the condensing coil, the outdoor fan and metal fins help to exhaust heat to the outside. The refrigerant heads back into your house, moving through an expansion valve that cools it significantly, prepping it to start the process from the beginning.

When your heat pump is put in and maintained correctly, you’ll enjoy efficient cooling on par with a high-performance air conditioner.

Wintertime Heating

When your heat pump is heating, the heat exchange process occurs the other way around. By traveling in the opposite direction, refrigerant pulls heat from the outdoor air and disperses it into your house to warm the inside.

Heat pumps working in heating mode are most efficient when the temperature is above freezing outside. If it gets too frigid, a backup electric resistance heater starts to keep your home cozy, but your heating expenses go up as a result.

Heat pumps work longer than furnaces as the air doesn’t get as heated. This helps maintain a more even indoor temperature. Additionally, because heat pumps move heat rather than generating it from a fuel source, they can perform well above 100% efficiency. You should expect 30–40% savings on your heating bills by getting a heat pump.

Book Heat Pump Installation or Service Now

Heat pumps are a green choice and money-saving. They replace the standard AC/furnace setup and require the same amount of maintenance—one service in the spring and another in the fall.

If you want to install a heat pump, Bob Brown Service Experts is the Expert to call. We’ll size and install your system to meet your heating and cooling needs. And then we’ll support our services with a 100% Satisfaction Guarantee* for a year. To learn more, contact us at 623-243-4517 today.

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