shw heat exchangers

ws9876ws9876 Solar Expert Posts: 404 ✭✭✭
what is the payback time on the Geyser hot water exchange system??


  • inetdoginetdog Solar Expert Posts: 3,123 ✭✭✭✭
    Re: shw heat exchangers

    Depends on what the heating fuel costs would be without it and what the cost of electricity is to run the heat pump.
    If you are comparing to natural gas, you may not ever get payback. If you are comparing to electric resistance or propane it then comes down to the current and estimated future fuel prices.
    SMA SB 3000, old BP panels.
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