Seer Ratings For Heat Pumps May 2026
Mark sold his 22 SEER unit on Facebook Marketplace at a loss. He replaced it with an 18 SEER / 12.5 HSPF cold-climate model. His summer bills rose $15/month. His winter bills dropped $400/month.
Dave sighed. “Mark, I told you about HSPF. You wanted the big SEER number.”
He now tells neighbors: “SEER is a love letter to summer. But winter doesn’t read love letters—it reads HSPF.” seer ratings for heat pumps
At 25°F, the air from the vents turned tepid—not cold, but not the toasty blast they expected from their old oil furnace. At 15°F, the unit started running constantly. At 5°F, it simply stopped heating effectively and switched to emergency electric resistance heat.
The comment section was a graveyard of warnings they ignored. One friend wrote: “Wait til January.” January arrived with a polar vortex. The thermostat read 28°F outside. The heat pump, which worked so beautifully in summer, began to struggle. Mark sold his 22 SEER unit on Facebook Marketplace at a loss
Logline: When the Martins moved into their drafty Vermont colonial, they thought a high-SEER heat pump was the ultimate flex. But as winter descended, they learned the hard way that not all efficiency ratings are created equal. Act I: The Summer of the Big Number Mark and Lisa Martin were tired of window AC units roaring in every bedroom. Their HVAC contractor, a smooth talker named Dave, pitched a solution: a new ductless heat pump system with a SEER rating of 22 .
“SEER is the gold standard,” Dave said, tapping the brochure. “That’s 22 Seasonal Energy Efficiency Ratio. Your old unit was a 14. You’ll save a fortune.” His winter bills dropped $400/month
| What High SEER Tells You | What High SEER Hides | | :--- | :--- | | Excellent summer cooling efficiency | Nothing about heating performance | | Lower peak electric demand in July | Could mean a weaker, single-stage compressor that struggles in winter | | Qualifies for some energy rebates (summer-focused) | May have terrible HSPF (heating efficiency) |