
HVAC Efficiency Ratings and What They Mean for Your Home
As homeowners, we all want to save money on our energy bills while keeping our homes comfortable throughout the year. One way to achieve this goal is by ensuring that our HVAC systems are operating at their highest efficiency levels. In this blog, we will explore HVAC efficiency ratings and what they mean for your home.
What are HVAC Efficiency Ratings?
HVAC efficiency ratings are a measure of how efficiently an HVAC system operates. These ratings are expressed as a percentage, and they indicate the percentage of energy that an HVAC system converts into usable heating or cooling power.
There are three primary HVAC efficiency ratings to be aware of:
- SEER (Seasonal Energy Efficiency Ratio): measures the efficiency of air conditioners and heat pumps.
- AFUE (Annual Fuel Utilization Efficiency): measures the efficiency of furnaces and boilers.
- HSPF (Heating Seasonal Performance Factor): measures the efficiency of heat pumps when heating.
SEER Ratings
SEER ratings are used to measure the efficiency of air conditioners and heat pumps. The higher the SEER rating, the more efficient the unit. SEER ratings can range from 13 to 25 or more. An air conditioner or heat pump with a SEER rating of 13 is considered to be the minimum efficiency rating allowed by law in the United States.
When shopping for a new air conditioner or heat pump, it’s important to choose one with a SEER rating that is appropriate for your home. A system with a higher SEER rating will be more expensive, but it will also save you money on your energy bills in the long run.

AFUE Ratings
AFUE ratings are used to measure the efficiency of furnaces and boilers. The higher the AFUE rating, the more efficient the unit. AFUE ratings can range from 80% to 98.5% or more. A furnace or boiler with an AFUE rating of 80% is considered to be the minimum efficiency rating allowed by law in the United States.
When shopping for a new furnace or boiler, it’s important to choose one with an AFUE rating that is appropriate for your home. A system with a higher AFUE rating will be more expensive, but it will also save you money on your energy bills in the long run.
HSPF Ratings
HSPF ratings are used to measure the efficiency of heat pumps when heating. The higher the HSPF rating, the more efficient the unit. HSPF ratings can range from 7.7 to 13 or more. A heat pump with an HSPF rating of 7.7 is considered to be the minimum efficiency rating allowed by law in the United States.
When shopping for a new heat pump, it’s important to choose one with an HSPF rating that is appropriate for your home. A system with a higher HSPF rating will be more expensive, but it will also save you money on your energy bills in the long run.
What Do These Ratings Mean for Your Home?
The HVAC efficiency ratings of your heating and cooling systems have a significant impact on your energy bills. A more efficient system will use less energy to produce the same amount of heating or cooling power as a less efficient system. This translates to lower energy bills and reduced carbon emissions.
In addition to reducing energy bills, a more efficient HVAC system can also increase the comfort of your home. A more efficient system will provide more consistent heating and cooling, which can eliminate hot and cold spots in your home. This can make your home more comfortable throughout the year.

Choosing the Right HVAC System for Your Home
When choosing an HVAC system for your home, it’s important to consider the efficiency ratings of the system. A system with a higher efficiency rating will cost more upfront, but it will save you money in the long run by reducing your energy bills. It’s also important to consider the size of the system and the climate in your area.
A system that is too large for your home will cycle on and off frequently, which can lead to decreased efficiency and increased wear and tear on the system. On the other hand, a system that is too small for your home will have to work harder to keep up with demand, which can also lead to decreased efficiency and increased wear and tear on the system.
Additionally, the climate in your area can affect the efficiency of your HVAC system. If you live in an area with extreme temperatures, you may need a system with a higher efficiency rating to maintain a comfortable temperature in your home.
Maintaining Your HVAC System
Once you’ve installed an HVAC system with an appropriate efficiency rating, it’s important to maintain the system to ensure that it continues to operate at peak efficiency levels. Regular maintenance can also extend the life of your HVAC system and prevent costly repairs down the line.

Some maintenance tasks that homeowners can perform themselves include:
- Changing air filters regularly
- Keeping outdoor units clean and free of debris
- Checking thermostat settings
- Sealing air leaks in ductwork and around windows and doors
- Cleaning air vents and registers
Professional HVAC maintenance services can also be beneficial, as technicians can identify and address issues that may be affecting the efficiency of your system.
HVAC efficiency ratings are an important factor to consider when choosing an HVAC system for your home. SEER, AFUE, and HSPF ratings measure the efficiency of air conditioners, furnaces, boilers, and heat pumps. Choosing a system with an appropriate efficiency rating for your home and climate can lead to lower energy bills, increased comfort, and reduced carbon emissions. Regular maintenance can also help to maintain the efficiency of your HVAC system and extend its lifespan.
The Cost of Different HVAC Systems
The cost of HVAC systems can vary depending on the type of system and the efficiency rating. Here’s a breakdown of the cost of different HVAC systems:
Air Conditioners
The cost of an air conditioner can range from $1,500 to $4,000 or more, depending on the size and efficiency rating of the unit. A higher SEER rating will generally result in a higher upfront cost, but it will also save you money on your energy bills in the long run.

Furnaces
The cost of a furnace can range from $2,500 to $7,500 or more, depending on the size and efficiency rating of the unit. A higher AFUE rating will generally result in a higher upfront cost, but it will also save you money on your energy bills in the long run.
Boilers
The cost of a boiler can range from $3,500 to $7,500 or more, depending on the size and efficiency rating of the unit. A higher AFUE rating will generally result in a higher upfront cost, but it will also save you money on your energy bills in the long run.
Heat Pumps
The cost of a heat pump can range from $5,000 to $10,000 or more, depending on the size and efficiency rating of the unit. A higher HSPF rating will generally result in a higher upfront cost, but it will also save you money on your energy bills in the long run.
Investing in an HVAC system with a high-efficiency rating may require a higher upfront cost, but it can save you money on your energy bills in the long run. Choosing a system with an appropriate size and efficiency rating for your home and climate is also important. Regular maintenance can help to maintain the efficiency of your system and extend its lifespan. When considering the cost of an HVAC system, it’s important to factor in the potential savings on energy bills over time.