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gas boiler flue, vertical vs. horizontal

  • 21-01-2021 6:41pm
    #1
    souter
    Registered Users, Registered Users 2 Posts: 634 ✭✭✭


    Hi,
    12 y.o. gas boiler is making scary noises so looking to replace. Contacted a supplier and they're coming round to give a quote.
    They asked various questions and the one thing they picked up on is our current flue is vertical, which might be a problem.
    They also said might need to become horizontal.
    I understand regulations will change over time, but any idea why a 12 y.o. vertical flue, c.1m proud from the roof slates near the bottom of the roof pitch, might be an issue?
    NB there is an air inlet to the room beside the cupboard where boiler is (put in at same time) which would be close any horizontal flue by my estimation.


Comments

  • #2
    Roger Mellie Man on the Telly
    Registered Users, Registered Users 2 Posts: 1,102 ✭✭✭Roger Mellie Man on the Telly


    Flues can be vertical. They just need to be fitted in accordance with building regulations, as do horizontal flues. Sounds like they're being lazy.


  • #3
    Calahonda52
    Registered Users, Registered Users 2 Posts: 12,886 ✭✭✭✭Calahonda52


    It may have less to do with building regs and more to do with the boilers which can have a combined intake and exhaust in the one pipe so its easier to drill say a 4 inch hole straight out over the new boiler..


    Have you had it serviced, may be simple, 12 yers is not old

    “I can’t pay my staff or mortgage with instagram likes”.



  • #4
    souter
    Registered Users, Registered Users 2 Posts: 634 ✭✭✭souter


    Calahonda52 wrote: »
    It may have less to do with building regs and more to do with the boilers which can have a combined intake and exhaust in the one pipe so its easier to drill say a 4 inch hole straight out over the new boiler..


    Have you had it serviced, may be simple, 12 yers is not old
    Spot on. Turns out the boilers are sold with horizontal flue so vertical flue is an unavoidable additional cost. The sales guy owned up to being a bit of Jeremiah about having to convert to vertical so we're going ahead retaining a vertical flue.

    I had it serviced already and that guy couldn't identify any specific issue other than a bit of corroision in flue so given the hassle of dismantling kitchen units I'm going for a replacement whilst we're at it.

    Apparently it was Ideal's first attempt at a condensing boiler. Lovely sales pitch - it appeals to your sense of being in the know.
    Anyhoo, being stuck next door to the boiler all day I can do without it's sporadic mad noises.

    And sticking the intake and outlet into one pipe, who thought that was a good idea?


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