Observed arrival · 2026-10-19
HeatSpec Guide: Heat-Pump Specs at 5°F
A comparison guide for certified ductless heat pumps, with published cold-weather capacity data and a calculator for heating-cost scenarios.
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- People comparing ductless heat pumps for cold-weather heating
- Worth noticing
- The site notes that 25 units list higher capacity at 5°F than at 47°F and preserves those source figures without correction.
Field notes
The homepage describes 101 certified indoor/outdoor pairings across 92 outdoor units, with 77 meeting the site's stated ENERGY STAR cold-climate criteria. Its cost scenario asks for annual heating load, utility prices, furnace AFUE, and HSPF2, and explicitly distinguishes the result from a prediction. The methodology notes that source capacity values are retained as published, including cases where the 5°F figure exceeds the 47°F figure.
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Editorial observations of this landing page, not a rating.
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✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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