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Combined Feed and Vent

  • 21-04-2018 9:39am
    #1
    John.G
    Registered Users, Registered Users 2 Posts: 3,623 ✭✭✭


    Two houses built in 1970, both have oil fired heating systems, one has the combined Feed & Vent as per top sketch, the other as per bottom. Is the bottom one safe??.


Comments

  • #2
    Wearb
    Moderators, Home & Garden Moderators Posts: 6,380 Mod ✭✭✭✭Wearb


    The bottom one isn't considered safe (top one isn't ideal either), but I never knew why. It is for the most part operating similar to a low pressure EV.


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    448797.jpg

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


    Wearb wrote: »
    The bottom one isn't considered safe (top one isn't ideal either), but I never knew why. It is for the most part operating similar to a low pressure EV.


    for those without excel
    448797.jpg

    Both houses had these systems when first installed, I think they prevent "pitching". Both are vented systems and are not semi sealed.


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