HVAC Terms Explained: SEER2, EER2, HSPF2, AHRI, MCA, MOP and Every Spec on a Product Page
Quick answer: HVAC spec sheets use a small set of ratings and acronyms (SEER2, EER2, HSPF2, AFUE, AHRI, MCA, MOP, TXV, ECM) that decide whether a system is legal to install in your region, how much it…
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