Tell me about EER
EER is more important to desert dwellers than SEER!
A little background first.
SEER is what you hear about most often. SEER is an acronym for SEASONAL Energy Efficiency Rating.
SEER measures a cooling system's average efficiency throughout the whole cooling season. The number is based on a national "standard" cooling load and climate. Testing for SEER is conducted at an outdoor temperture of 82 degrees F.
When you live in a desert, there is nice and HOT.Our air conditioner's probably are not running at 82 degress F. There is no winter I can remember. Most of our cooling occurs when the temperture gets above 90 degrees F.
EER is way more important in a hot desert climate.
EER is an acronym for Energy Efficiency Ratio. The EER provides a measure of cooling system performance at 95 degrees F. The math behind it is really quite simple—peak cooling capacity in Btu/hour divided by power input in watts. A higher EER, means you’re getting more cooling output for every unit of power input. You may forget the math but make sure that your new air conditioner or heat pump has both a high SEER and high EER.
A system with a good SEER but a low EER probably won’t deliver the energy savings and cost savings you’re counting on.
When you select a high EER system you receive more than energy savings, you also get more cooling when you need it most.