The seasonal energy efficiency ratio (SEER) is the ratio of the total heat removed from the conditioned space during the annual cooling season divided by the total electrical energy consumed by the air conditioner during the same season. So, the higher the SEER rating, the less electrical energy your air conditioner uses to cool your home. Purchasing an air conditioner with a higher SEER rating could be more expensive but save you more money on your electricity bill. (U.S. Department of energy)
To meet the new requirements of SEER2, all air conditioning and heat pumps even the ones that meet current SEER ratings must be renovated by January 1, 2023. In order to achieve this the units must cumply with the new M1 testing procedure. This test will increase systems' external static pressure to better reflect field conditions of the equipment. Why are the region where you live important ?
The U.S. Department of Energy (DOE) enforces SEER2 requirements according to your geographical region. Since people living in southern climates use their air conditioners more often, they require more energy efficient systems. In 2015 the department decided to consider this, and the nation was divided into two main regions (North and South) based on the population weighted number of heating degree days (HDD). States with 5,000 HDD or more are considered part of the northern region, while States with less than 5,000 HDD are considered part of the southern region. The Department of Energy further split the southern region into two regions: “Hot-dry” and “Hot-humid”. The table below shows the minimum SEER value for each region.
In addition to the regional standards DOE also adopted new efficiency standards for other types of central air conditioners, as well as heat pumps.
Why it is important to comply with these requirements?
A higher SEER2 rating will mean lower utility bills and more comfort this is because this units tend to come with features like multi-stage cooling making your residence or business more comfortable. New air conditioners might be more expensive, but the use of a more efficient model means you will save more on every utility bill.
The US Department of Energy predicts the new standard for furnace fans will:
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May 2022
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