Guide To Air Source Heat Pumps
How Air Source Heat Pumps Work
“An air source heat pump is a heating and cooling system that transfers warm air from outside the home to inside the home in heating mode, and like an air conditioner, transfers warm air from inside the house to the outside of the house in cooling mode,” Mike Lea, co-owner of Lea Heating & Air Conditioning in East Dundee, IL said.
- The refrigerant in an air-source heat pump absorbs heat from the outdoor air and turns into a gas through evaporation.
- This gas is then compressed, which increases its temperature and pressure.
- The heated refrigerant then travels through a coil in the indoor unit of the heat pump, releasing its heat energy to warm the air inside your home. Meanwhile, the cooled refrigerant returns to its liquid state as it passes through an expansion valve, lowering its temperature and pressure.
- This cycle repeats continuously, extracting heat from the outdoor air during winter and transferring it inside, and vice versa during summer for cooling.
Air Source Heat Pump Efficiency and Performance

- Size of the unit. An oversized or undersized heat pump may not operate at optimal efficiency, leading to higher energy consumption. Proper sizing is essential to ensure maximum efficiency.
- Outdoor temperature. Outdoor temperature also impacts the performance of air source heat pumps. As the temperature drops, the heat pump's efficiency decreases. However, modern heat pumps are designed to handle colder temperatures efficiently, providing heat even in chilly weather.
- Installation quality: Professional, precise installation ensures optimal airflow, refrigerant charge, and electrical connections, all critical for efficiency.
- Maintenance and filter cleanliness: Regular maintenance, including cleaning or replacing air filters, keeps airflow unobstructed and components operating efficiently.
Types of Air-Source Heat Pumps
Single-stage vs. Variable-speed Heat Pumps
- Single-stage heat pumps operate at a fixed speed with two settings: on and off. They provide consistent heating or cooling but may not be as energy-efficient as variable-speed heat pumps.
- Variable-speed heat pumps have multiple speed options, allowing them to adjust their output based on the current temperature, resulting in more precise temperature control and improved energy efficiency.
Ducted vs. Ductless Air Source Heat Pumps
- Ducted heat pumps use a network of ducts to distribute heated or cooled air throughout your home and are popular for homes with an existing duct system.
- Ductless heat pumps, also known as mini split heat pumps, are a great alternative for homes without ductwork. They consist of an outdoor unit and one or more indoor units, providing zoned heating and cooling capabilities.
Dual Fuel System Options for Enhanced Efficiency

Selecting a Heat Pump
Sizing considerations for air source heat pumps
Choosing the right heat pump for your climate
Important features to look for in a heat pump
Work With A Bryant Dealer To Find The Right Air Source Heat Pump For You
Discover Bryant Heat Pumps
Choose a Bryant heat pump for reliable, energy-efficient heating and cooling all year round. Known for their durability and advanced technology, Bryant heat pumps offer superior comfort while lowering energy costs. With quiet operation and smart features like variable-speed motors, Bryant systems ensure optimal temperature control. Backed by industry-leading warranties and professional installation from your local Bryant dealer, a Bryant heat pump is a long-term investment in comfort, efficiency, and peace of mind for your home.
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