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Solar PV, air heat pumps and salt spray

  • 11-09-2022 4:43pm
    Registered Users Posts: 22


    We live beside the sea, and regularly get salt spray on our windows.

    What do we need to look for in

    1) Rooftop PV

    2) Air to water heat pump

    to reduce the risk of it all corroding away?




  • Registered Users Posts: 10,230 ✭✭✭✭the_amazing_raisin

    AFAIK the metal parts on the panels and mounting system are made from aluminium, so they won't corrode

    The wiring uses MC4 connections which should be weatherproof

    Having said that I've heard of a couple of times that someone lost a string because the seal on a connector went

    You'll probably end up with the panels covered in salt residue a lot, so you'll probably want to ensure your panels are somewhere you can get them cleaned easily enough

    For a heat pump you should check the manufacturers guidelines. I remember one brand recommended to put a short wall in front of the heat pump to stop seawater getting blown into the fan assembly

    If possible you should try to put the heat pump into a sheltered location

    "The internet never fails to misremember" - Sebastian Ruiz, aka Frost (Escapist magazine)