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The house of the year 3000 might vent the waste heat into the water going into the water heater saving a little energy for your shower. It might time running th
by willcipriano 2y ago
The house of the year 3000 might vent the waste heat into the water going into the water heater saving a little energy for your shower. It might time running the fridge compressor to when you make your coffee so it can use the waste heat to help heat up the water. Probably not cost effective until robots are building all the houses. Too many little pipes to run all over the place.
- blitzar 2y agoIn winter by fridge vents hot air into my house. Unfortunately it also does it in summer ...
- semi-extrinsic 2y agoMy house of the year 2024 already has a hot water tank that is using a heat pump to extract the heat from the ventilation air before it is sent out of the house. When you live in a cold climate this makes tons of sense. Cold air enters the house, gets heated up to 22°C by a heat pump, circulates through the house, then gets drawn into the ventilation system where it is cooled back down to around 2 °C before going out of the house, and the extracted heat is upgraded to 60°C hot water. There is an electric heater taking the water further up in temp. Our system is a retrofit, it draws around 1.2 kW peak and only provides hot water. For new builds, the bigger units drawing ~4kW peak are used, which provide both hot tap water and subfloor heating by water circulation.
- willcipriano 2y agoI knew about the heat and cold recapture devices that allow for ventilation without a lot of thermal loss but I had no idea they made ones to heat water like that. Awesome.