North Atlanta Heat Pump Tips | Comfort Zone HVAC Service
September 17, 2012

You are almost certainly familiar with EnergyStar ratings. They are those little stars you see on a lot of common household appliances, consumer electronics and other products. EnergyStar is a government program run by the Environmental Protection Agency and the Department of Energy to identify and clearly label products that meet strict efficiency guidelines. Products that carry the EnergyStar logo have been shown to be among the most highly efficient out there.

This labeling is important and arguably becoming more so every day. North Atlanta homeowners want the peace of mind that comes with knowing that the appliances in their homes are running efficiently, helping the environment and saving them money.

But have you ever wondered how a product gets to wear that EnergyStar logo? What are the guidelines it has to meet or exceed in order to be approved?

The short answer is that it varies across product lines, as you might expect. An air conditioner is very different from a personal computer. For heat pumps, though, there are some pretty simple and consistent specifications to meet.

Heat pump ratings are based on two numbers—one for cooling and one for heating. Cooling efficiency is rated on a scale called the seasonal energy efficiency ratio, or SEER. This number simply describes in a nutshell how efficiently a unit can cool the area it’s installed in. Most heat pumps these days have a SEER of at least 10, and the most efficient ones carry a SEER of around 18. To meet EnergyStar requirements, a heat pump must carry a SEER of at least 14.

The second number involved in rating the efficiency of a heat pump is the heating season performance factor, or HSPF. This number describes the heating efficiency of a heat pump by dividing its estimated heating capacity by the amount of electricity it draws. Most new heat pumps have an HSPF of at least 8, which is what is required for EnergyStar approval.

A third rating criterion for heat pumps is the energy efficiency ratio, or EER. This is like SEER, except that it is an instantaneous measurement rather than one over a whole heating season. This rating is less commonly considered by consumers, but it is part of the EnergyStar criteria, so it’s worth mentioning. EnergyStar requires heat pumps to have an EER of at least 11.

Only when a unit meets or exceeds all three of these specifications is it eligible for EnergyStar approval. Keep in mind that the requirements vary for split systems versus single package systems, and that they may change over time. Consult with a North Atlanta heat pump professional  like Comfort Zone Heating & Air during the purchase process to be sure the unit you want is EnergyStar approved.

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