About The Author: Travis Baugh is a Digital Brand Marketing Manager for Bryant, where he creates clear, helpful content to guide homeowners through heating, cooling, and indoor air quality decisions. His goal is to empower readers with the knowledge they need to choose the right comfort solutions for their home—confidently and comfortably.
A Homeowner's Guide to Air Source Heat Pumps
By Travis Baugh | Expert Review By Michelle Notaro - Product Manager, Heat Pumps
An air source heat pump is an energy-efficient HVAC systems that transfer heat between indoors and outdoors to provide heating and cooling year-round. In winter, a Bryant heat pump extracts heat from outdoor air and transfers it into your home; in summer, it reverses the process to move indoor heat outside. This dual functionality makes an air source heat pump a versatile solution for year-round comfort.
How does an air source heat pump work?
Air source heat pumps use a continuous refrigeration cycle to absorb, transport, and release heat between your home and the outdoor air. A single system acts as both a heater and an air conditioner, delivering heating and cooling from the same system.
As Mike Lea, co-owner of Lea Heating & Air Conditioning in East Dundee, IL, explains:
“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,” said.
The Heating and Cooling Cycle
Air source heat pumps use refrigerant —a substance that changes between liquid and gas as pressure and temperature change—to transfer heat efficiently. Here is how the cycle operates:
- Evaporation: The liquid refrigerant absorbs heat from the outdoor air, causing it to evaporate into a low-pressure gas.
- Compression: The gas is compressed, significantly increasing its temperature and pressure.
- Condensation: This hot, high-pressure gas flows through the indoor unit's coil, releasing its heat into your home's air. As it cools, it condenses back into a high-pressure liquid.
- Expansion: The liquid refrigerant passes through an expansion valve, which lowers its pressure and temperature, preparing it to absorb heat from outdoors again.
Heat pumps reverse this refrigeration cycle when operating in cooling mode, allowing the same system to provide both heating and cooling.. Learn more about what is a heat pump and how heat pumps work.
How Is Air Source Heat Pump Efficiency Measured?
Air source heat pump efficiency is primarily measured using two standardized ratings: SEER2 (Seasonal Energy Efficiency Ratio 2) for cooling and HSPF2 (Heating Seasonal Performance Factor 2) for heating performance. Higher ratings indicate greater rated seasonal efficiency, although actual operating costs depend on climate, energy rates, system sizing, and how the equipment is installed and operated.. Learn more about energy efficient heat pumps.
Bryant Air Source Heat Pump Specs
Bryant offers air source heat pumps across its Evolution, Preferred, and Legacy product lines. Current published specifications for three representative models include:
| Bryant Model | Product Line / Operation | Cooling Efficiency | Heating Efficiency | Sound Rating |
| 293VAN | Evolution™ / Variable-Speed | Up to 23 SEER2 | Up to 10.5 HSPF2 | As low as 53 dB |
| 248TAN | Preferred™ / Two-Stage | Up to 18.5 SEER2 | Up to 8.5 HSPF2 | As low as 65 dB |
| 235SAN | Legacy™ / Single-Stage | Up to 16 SEER2 | Up to 8.1 HSPF2 | As low as 70 dB |
Factors That Impact Air Source Heat Pump Efficiency
Bryant recommends considering several factors when selecting and installing an air source heat pump:
- Unit Sizing: An incorrectly sized unit—whether too large or too small—will not operate as intended. A professional load calculation helps determine the appropriate equipment capacity for the home. Learn more about heat pump size.
- Outdoor Temperature: While heat pump efficiency naturally decreases as outdoor temperatures drop, modern cold climate heat pumps are engineered to provide reliable heat even in freezing conditions. Bryant's 291VAN is able to maintain 100% heating capacity down to 0ºF.
- Installation Quality: A professional heat pump installation ensures correct refrigerant levels, proper airflow, and secure electrical connections—all of which are vital for efficiency.
- Regular Maintenance: Keeping filters clean and scheduling regular heat pump maintenance allows components to operate efficiently and extends the lifespan of the heat pump.
The U.S. Department of Energy says today's heat pumps can reduce electricity use for heating by up to 75% compared with electric resistance heating. 1 Actual savings vary based on the home's existing heating system, climate, electricity rates, equipment efficiency, and installation.
What Are the Types of Air Source Heat Pumps?
Air source heat pump systems include different operating configurations, including single-stage, two-stage, variable-speed, ducted, ductless, and dual fuel systems. Selecting the right type depends on your existing ductwork, climate, home requirements, and preferred level of temperature control.
Single-Stage vs. Variable-Speed
- Single-stage heat pumps operate at one fixed speed, cycling on and off to maintain temperature. They are a consistent and reliable option for budget-conscious homeowners. Bryant's 235SAN is a single-stage model with up to 16 SEER2 and 8.1 HSPF2.
- Variable-speed heat pumps adjust their operating speed based on the home's real-time heating or cooling needs. This allows for more precise temperature control, quieter operation, and superior energy efficiency. Variable-speed models are better suited for homeowners who prioritize long-term savings and consistent indoor comfort, while single-stage systems work best when upfront cost is the primary consideration. Bryant's 293VAN uses full variable-speed operation and is rated up to 23 SEER2 and 10.5 HSPF2, with sound levels as low as 53 dB.
Ducted vs. Ductless
- Ducted heat pumps use your home's existing ductwork to distribute conditioned air, making them a natural choice for homes with a central HVAC system already in place.
- Ductless heat pumps, also known as mini split heat pumps, are ideal for homes without ductwork. They consist of an outdoor unit connected to one or more indoor units, enabling zoned heating and cooling for individual rooms. Ductless systems can also be used for additions, older homes, or spaces where installing new ductwork is impractical.
Dual Fuel Systems
Dual fuel systems combine an electric air source heat pump with a gas furnace. Bryant Hybrid Heat® systems can automatically switch between the heat pump and furnace based on outdoor conditions and system controls. This configuration can provide heating and cooling while allowing the homeowner to use two heating sources.
| Category | BEST – EVOLUTION SYSTEM | BETTER – PREFERRED SERIES | GOOD – LEGACY LINE |
| Energy Management | Extreme Variable-Speed Operation
Makes subtle adjustments as conditions change to deliver comfort with much higher precision than standard or two-stage models. |
Two-Stage Operation
Automatically chooses between low and high setting to maintain more consistent temperature. Single-Stage Operation Switches on each time the temperature rises above the thermostat set point. |
Single-Stage Operation
Switches on each time the temperature rises above the thermostat set point. |
| Durability | DuraGuard™ Plus Protection
Features galvanized steel cabinets, baked-on powder paint and louvered coil guards. |
DuraGuard™ Plus Protection
Features galvanized steel cabinets, baked-on powder paint and louvered coil guards. |
Basic Humidity Management
Provides basic humidity removal during cooling operation. |
| Humidity Management | Perfect Humidity® Technology
This feature leverages multi-stage systems to maximize humidity removal without over-cooling. |
Enhanced Humidity Management
Provides enhanced humidity removal during cooling operation. |
Bryant Smart Thermostat
Wi-Fi-enabled smart thermostat that offers convenient and connected comfort control. |
| Comfort Management | Evolution Connex™ Control
Our most advanced Wi-Fi®-enabled control, it can maximize efficiency by communicating with components of a complete home comfort system. Extreme Variable-Speed Operation Enjoy consistent temperature, reduced hot/cold spots, and enhanced humidity management. |
ecobee® for Bryant Smart
Thermostats Wi-Fi-enabled smart thermostat learns your schedule for greater efficiency and comfort. Two-Stage Operation Reduced up-and-down temperature swings compared to single-stage systems. |
Single-Stage Operation
Solid, reliable performance that delivers comfort when you need it. |
How do I choose the right air source heat pump?
Choosing an air source heat pump starts with evaluating your home's heating and cooling load, climate, existing infrastructure, and desired system features. An HVAC professional can perform a load calculation to determine the appropriate equipment size and recommend a system for your home
Key factors to consider include:
- Sizing: Your local Bryant dealer can calculate the precise size needed for your home's square footage, layout, and insulation levels to ensure efficient operation.
- Climate: In colder climates, look for equipment with published low-temperature performance appropriate for your location. Bryant's 291VAN, for example, is designed for heating operation down to -23°F.
- Features: Look for features that enhance comfort and performance, such as variable-speed compressors, noise-reduction technology, and ENERGY STAR® certification.
Air Source Heat Pump Installation
Air source heat pump installation involves sizing and positioning the outdoor unit, connecting it to indoor equipment or ductwork, installing refrigerant lines and electrical connections, and commissioning the system.
Proper installation is critical for performance. Correct sizing, refrigerant charge, airflow, electrical connections, and system commissioning all help the equipment operate as designed. When installed correctly by a qualified professional, air source heat pumps can provide both heating and cooling in a highly energy-efficient way year-round. Learn more about heat pump installation.
How Much Does An Air Source Heat Pump Cost?
The cost of an air source heat pump installation varies based on equipment size, efficiency, system type, installation complexity, and required modifications. Bryant currently states that heat pump replacement typically costs between $6,000 and $25,000, although individual projects can fall outside this range.
Factors that can increase installation costs include higher-efficiency equipment, larger systems, electrical upgrades, ductwork modifications, and more complex installation requirements. A Bryant dealer can provide a project-specific estimate after evaluating the home.
Estimated Air-Source Heat Pump Energy Savings
Air source heat pumps can reduce electricity use for heating because they transfer heat rather than generate heat through electric resistance. ENERGY STAR states that ENERGY STAR-certified air-source heat pumps can deliver up to three times more heat energy to a home than the electrical energy they consume.1
The U.S. Department of Energy reports that today's heat pumps can reduce electricity use for heating by up to 75% compared with electric resistance heating such as baseboard heaters.2 Actual savings vary based on the home's existing heating system, local utility rates, climate, equipment efficiency, and installation.
Factors that influence heat pump savings include:
- Current heating system: Homes replacing electric resistance heat often have greater savings potential.
- Climate: Modern air source heat pumps can operate in colder climates, but heating performance varies with outdoor temperature and equipment design.
- System efficiency: Higher SEER2 and HSPF2 ratings indicate higher rated seasonal efficiency, although they do not guarantee a specific reduction in a homeowner's energy bill.
- Home efficiency: Proper insulation, air sealing, and correctly sized equipment can significantly impact operating costs.
When considering an air source heat pump, homeowners should compare both the upfront installation cost and potential long-term operating savings. A Bryant Factory Authorized Dealer can evaluate the home's heating and cooling requirements, existing system, climate, and energy costs to help determine which heat pump configuration is appropriate.
Work With A Bryant Dealer To Find The Right Air Source Heat Pump
At Bryant, we offer several different types of heat pumps across the Evolution, Preferred, and Legacy product lines, with options for different efficiency levels, operating configurations, and comfort requirements. Our technologies and features are designed to provide heating and cooling throughout the year.
Whether you're looking for a single-stage or variable-speed heat pump, ducted or ductless system, or a dual fuel option, your local Bryant dealer can evaluate your home and identify the best heat pump for your home. Your dealer can also provide a quote for heat pump replacement and installation. Schedule an appointment with your local Bryant dealer today and start to experience the comfort of an air source heat pump.
1 https://www.energystar.gov/products/air_source_heat_pumps
2 https://www.energy.gov/energysaver/heat-pump-systems
Compare Bryant Heat Pumps
Bryant offers several types of heat pumps designed with efficiency and performance in mind. Advanced technologies and innovative features ensure optimal performance and reliability, helping you maintain a comfortable indoor environment while reducing heating and cooling bills.
Air Source Heat Pump FAQs
A heat pump is a general term for systems that transfer heat to provide heating and cooling, while an air source heat pump specifically extracts heat from the outside air to condition your home.
Air source heat pumps are generally cost-effective to run, especially in moderate climates, and can be cheaper than gas or electric resistance heating depending on local energy prices due to their high efficiency.
Air source heat pumps are most efficient at temperatures above 40°F, though modern cold-climate models maintain strong performance even in subfreezing conditions.
Yes, air source heat pumps can be worth it, especially in regions with mild winters and moderate humidity, where it can deliver efficient year-round comfort.
Most heat pumps last around 10 to 15 years, depending on maintenance and local climate conditions.
Yes, many modern air source heat pumps integrate seamlessly with smart thermostats and home automation platforms. This advanced connectivity allows you to monitor energy usage and precisely control your home's climate from anywhere.
Yes, air source heat pumps continuously circulate and filter your home’s air. When paired with advanced air purifiers and proper humidity management technologies, they can help reduce indoor pollutants and help you breathe cleaner air.
Installation costs vary depending on the system type, home size, existing ductwork, and local labor rates. Visit Bryant's heat pump cost guide for a detailed breakdown of what to expect.
Federal, state, and utility-level incentives may be available for qualifying air source heat pump installations, particularly for ENERGY STAR®-certified models. Contact your local Bryant dealer to find out which programs apply in your area.
About The Expert Reviewer: Michelle Notaro is a Product Manager for Residential Air Conditioners at Bryant, helping guide the direction of residential cooling products. She considers changing homeowner priorities, emerging market developments, and regulatory requirements to support air conditioning solutions that address today's comfort and efficiency expectations.
Learn More About Heat Pumps
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- Read our guide to heat pump cost
- Understand what is an electric heat pump
- Discover what is auxiliary heat
- How do I know if I have a heat pump?
- Learn about heat pump benefits
