How a Heat Pump Cools Your House

In Savannah, heat pumps can be a popular choice to heat and cool your house.

They appear almost like an air conditioner. In actuality, they operate in the same way during the summer. Since they have a reversing valve, they can transfer humidity in the opposite direction as well as heat your house when temperatures drop.

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

How Heat Pumps Work

Heat pumps use a refrigeration system like an air conditioner. Most can work similar to a ductless mini-split, as they can heat and cool. Heat pumps have an indoor evaporator coil and an outdoor condensing coil. Refrigerant is pumped through these coils to transfer humidity. The outdoor unit also uses a compressor and is enclosed by metal fins that function as a heat sink to help shift warmth efficiently.

Summertime Cooling

When your heat pump is set to cooling, the refrigerant begins in the evaporator coil. Air from inside the house blows over the coil, and the refrigerant removes humidity. Water in the air also condenses on the coil, dripping into the condensate pan below and flows away. The resulting cold air flows through the ductwork and back into your house.

Meanwhile, the refrigerant passes through a compressor on its way to the outdoor coil. This compresses the refrigerant, leading it to warm up. As it flows through the condensing coil, the outdoor fan and metal fins help to discharge heat to the outside. The refrigerant moves back indoors, moving through an expansion valve that cools it greatly, readying it to go through the process all over again.

When your heat pump is replaced and maintained properly, you’ll get efficient cooling equivalent to a high-performance air conditioner.

Wintertime Heating

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

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

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

Schedule Heat Pump Installation or Service Today

Heat pumps are environmentally friendly and cost-effective. They are a substitute for the standard AC/furnace setup and need the same amount of maintenance—one appointment in the spring and another in the fall.

If you’re interested in installing a heat pump, Coastal Service Experts is the Expert to get in touch with. We’ll size and install your equipment to match your heating and cooling needs. And then we’ll back our services with a 100% Satisfaction Guarantee* for a year. To find out more, contact us at 912-208-2399 today.

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