Observed arrival · 2026-10-24
Home Energy Sums shows its heat-pump math
A UK home heat-pump calculator estimates heat loss, required size, running costs against a current boiler, and installation cost.
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✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- UK homeowners weighing a heat pump
- Worth noticing
- It uses the nearest of 11 listed weather stations and says postcode lookup uses only the first part of the postcode.
Field notes
The inputs distinguish details that can materially change an estimate, including shared walls, floor position, insulation depth, and window type. For location, the page asks users to choose a nearby weather station from a list of 11 and says only the postcode’s first part is used for heating-season lookup. It also explains that oil and LPG comparisons are absent because the page lacks a dated source for their uncapped prices.
Observed signals
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Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
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