SEER2 and HSPF2 Explained

What the efficiency ratings on a heat pump actually mean.

SEER2 (cooling)

Higher SEER2 means less electricity for cooling. The federal minimum is around 14.3 in the South; high-efficiency units reach 20+.

HSPF2 measures heating efficiency over a season. 7.5+ is good; cold-climate units also list performance at 5°F.

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