Heat Pump Sizing Guide: Tons, BTU, Manual J, and Why Bigger Is Not Better
Tons, BTU, Manual J, and climate zones explained, plus a tonnage-by-square-footage table and why sizing for heating matters in cold…
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Plain-English explainers on how heat pumps work, what the ratings mean and what to expect.
SEER2, HSPF2, EER2, and COP Explained: How to Read Heat Pump Efficiency Ratings
What SEER2, HSPF2, EER2, and COP actually measure, why ratings dropped in 2023, the federal minimums for 2026, and a…
How Heat Pumps Work: The Refrigeration Cycle, Reversing Valves, and Why Efficiency Beats 100%
A heat pump moves heat instead of making it. Here is how the refrigeration cycle, reversing valve, and inverter compressor…
R-454B and the Refrigerant Transition in 2026: What the Shortage Left Behind
New heat pumps now ship with A2L refrigerants. Here is how the 2025 R-454B shortage played out, why R-410A repairs…