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What boiler

  • 16-03-2023 9:59pm
    #1
    Phil.x
    Registered Users, Registered Users 2 Posts: 1,757 ✭✭✭


    I'm starting to look at replacing my 20+ year old boiler, vokera mynute 14e, I have a regular boiler system with copper tank and attic tank. I have 9 rads, bathroom and ensuite, no electric showers.

    What sort of output kW should I be looking at, my old one is 15kw, is it advisable to go a little bigger, say 19 or 21 kW?

    What brand are people getting installed?

    Thanks.



Comments

  • #2
    10-10-20
    Registered Users, Registered Users 2 Posts: 8,074 ✭✭✭10-10-20


    Sizing is commonly done like this:

    • 1 kW for small radiators.
    • 1.5 kW for an average-sized radiator.
    • 2 kW for large radiators.

    Add them all up and include 3kW for DHW. If you have improved the insulation/windows of the house then you don't need to go larger and may get away with a slightly smaller unit. Mine is 28kW, but I could probably comfortably go with 25kW as I have installed triple glazing and additional insulation.

    I was looking at the Viessmann Vitodens 100W but I'm not sure if the servicing is up to scratch as it's handled by one single third-party in Ireland, and as we know that means it's a closed game. I'd take input on this from other Irish owners if they have experience with servicing Viessmann units.



  • #3
    Bettysk
    Registered Users, Registered Users 2 Posts: 7 ✭Bettysk


    https://www.boards.ie/discussion/comment/120369825#Comment_120369825

    What do you mean the servicing? Any RGI registered contractor can service a Viessman.

    There is one main distributor though if it becomes a warranty call but they are normally quite efficient.


    https://www.boards.ie/discussion/2058288604/what-boiler

    We generally recommend Viessman's or Ideal Max boilers. Theres not normally a huge cost difference to go from a 15 to an 18 Ideal Max and they come with 10 years warranty.



  • #4
    10-10-20
    Registered Users, Registered Users 2 Posts: 8,074 ✭✭✭10-10-20


    https://www.boards.ie/discussion/comment/120369844#Comment_120369844

    I know that once you're RGI that you can service 'any' boiler, but I have a Vokera Mynute and I have had enough issues with servicing and repairs that I'll only go to Vokera directly for both. I got hit with 500 EUR of a bill once for parts which appeared to be second-hand and faulty.



  • #5
    Phil.x
    Registered Users, Registered Users 2 Posts: 1,757 ✭✭✭Phil.x


    I've never serviced my boiler in the 20+ years. It's a 16e and not a 14e.



  • #6
    Phil.x
    Registered Users, Registered Users 2 Posts: 1,757 ✭✭✭Phil.x


    https://www.boards.ie/discussion/comment/120369844#Comment_120369844

    What sort of price are we talking for a supply and fit.



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