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Gravity circuit on a unvented hot tank

  • 16-02-2024 1:57pm
    #1
    hydrus21
    Registered Users, Registered Users 2 Posts: 136 ✭✭


    Looking for advice on this please.

    Has anyone managed to get a gravity circuit work between a multi fuel burner and a corrugated primary coil?

    Pumping it is OK as long as there is no power cut which is my main concern.



Comments

  • #2
    John.G
    Registered Users, Registered Users 2 Posts: 3,623 ✭✭✭John.G


    From what Ive read on other sites theres not a hope of getting any gravity circulation with a corrugated primary coil.



  • #3
    10-10-20
    Registered Users, Registered Users 2 Posts: 8,070 ✭✭✭10-10-20


    What now is this purported magic of a "corrugated primary coil"? I googled it and it's not showing up. Is that a common feature on modern cylinders?



  • #4
    Wearb
    Moderators, Home & Garden Moderators Posts: 6,378 Mod ✭✭✭✭Wearb


    https://www.boards.ie/discussion/comment/121779368#Comment_121779368

    Because it creates a much greater surface area, it greatly improves heat transfer.

    Please follow site and charter rules. "Resistance is futile"



  • #5
    10-10-20
    Registered Users, Registered Users 2 Posts: 8,070 ✭✭✭10-10-20


    https://www.boards.ie/discussion/comment/121779522#Comment_121779522

    🤣 Thanks! That's what triggered my interest. It also means that the water-flow is more turbulent/less laminar and the heat dissipation should be better again. That's why I was wondering how common they are.



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