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Understanding How Heat Pumps Work

by admin on May 22, 2015

heat-pump-1000-ffccccccWhite-3333-0.20.3-1Heat pumps are an alternative to traditional methods of heating and cooling via a furnace and an air conditioner. A heat pump exchanges heat with the air or ground outside your home to either heat and cool your home.

These systems are an excellent choice to help you save money and maintain a comfortable home—talk to your HVAC repair service for more information about heat pump installation in Seattle.

Air-Source Heat Pumps

Air-source heat pumps are the most common type of heat pump in use today. These systems exchange heat with the outside air by circulating refrigerant through the appliance to provide indoor comfort for your home.

When it’s cool outside, your heat pump takes heat from the air outside and transfers it inside to provide your home with warmer air. As the temperature rises, the system can be reversed to transfer excess heat from the air in your home to the air outside, thus cooling your home.

Ground-Source Heat Pumps

heat-pumpRegardless of the temperature outside, the ground beneath your home remains a constant temperature. Ground-source heat pumps utilize a length of buried pipes, through which refrigerant or water is circulated—this is called a closed-loop system.

Open-loop ground-source heat pumps utilize a man-made pond or well where water is expelled and drawn in as it moves through the system. When your home is too cool, the water or refrigerant absorbs heat from the ground and transfers it inside. Alternatively, when your home is too warm, excess heat is transferred from your home into the ground below.

Absorption Heat Pumps

Absorption heat pumps are a form of air-source heat pump. Unlike ground-source and other air-source heat pumps, absorption heat pumps are powered by propane, natural gas, or solar power. Rather than using a refrigerant, absorption heat pumps transfer heat using ammonia and water.

Switching from a traditional HVAC system to a heat pump system in Seattle could save you money and reduce your home’s carbon footprint. An eco-friendly heating service expert can help you choose the right type of heat pump for your home.