HomeHacker News Show HN: Heat Pumps, Hooray – A heat pump calculator for your home https://ift.tt/yonAhmp byHat hair -September 14, 2022 0 Show HN: Heat Pumps, Hooray – A heat pump calculator for your home https://ift.tt/KmtbZYS September 14, 2022 at 09:11PM Tags: Hacker News Facebook Twitter