shw heat exchangers

ws9876
ws9876 Solar Expert Posts: 448 ✭✭✭
in General Solar Power Topics #1
what is the payback time on the Geyser hot water exchange system??
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  • inetdog
    inetdog Solar Expert Posts: 3,123 ✭✭✭✭
    #2
    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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