Launch HN: Electric Air (YC W23) – Heat pump sold directly to homeowners 571 by cmui | 527 comments on Hacker News. Hi HN! I’m Chris Mui, founder of Electric Air ( https://electricair.io ). We’re building a residential heat pump system. This will be an all-electric replacement for your home’s furnace and air conditioner that enables more centrally ducted installs, manages your indoor air quality, and saves you money on monthly energy bills. We also streamline purchase, finance and install by selling directly to homeowners. You can place a preorder today at https://electricair.io . Heat pumps work by using refrigerant and a compressor to move energy against a temperature gradient. If you put 1 kWh of energy into a heat pump, you get 3-5 kWh of heating in your home. But this isn’t breaking the laws of physics because heat pumps don’t make heat, they move it around. The extra 2-4kWh gets absorbed from the outdoors, even when it is cold outside. The low pressure refrigerant in the outdo
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