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A comment on Hitachi launches CO2 heat pump water heaters with solar-friendly tariff controls. Parent comment

Re:Hitachi launches CO2 heat pump water heaters with solar-f... by foobarian on Thursday September 10, 2026 @09:04PM (#49652263)
People keep saying this and yet I struggle to find a decent sized house battery that doesn't cost as much as a new car.
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Re:Hitachi launches CO2 heat pump water heaters with solar-f... by maigret on Friday September 11, 2026 @06:01AM (#49655906)
What kind of electricity usage do you have? Because a used electric car probably around 20k provides you with easily 50+kwh in car to grid, + you get a working car for free.
[ Parent | on HN ]