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Home > Ask the Experts > How Long Has High Efficiency Heating And Air Conditioning Been In Existence?

How Long Has High Efficiency Heating And Air Conditioning Been In Existence?

asked 10 months ago in Climate Control by anonymous

1 Answers

The minimum efficiency rating of 13 SEER went into effect in January 2006. Shortly after, 15 SEER and higher came into existance. However 14SEER was the popular choice for higher efficiency installations. Some manufactureres now have ratings of up to 23 SEER in some models.

answered 9 months ago by AskJ AC Doctor Certified Expert

(460 points)

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