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Renovation - Plumbing Layout

  • 31-01-2019 8:57am
    #1
    S'
    Registered Users, Registered Users 2 Posts: 279 ✭✭


    Hi all,

    I will be starting my renovation soon and looking for recommendations on what is the most efficient way of heating/plumbing my 260m2 two storey house.

    Items I have are:

    1) I have a Nestor Martin Bayard Harmony 3B 16kW solid fuel stove
    2) Grant Vortex 90/120 Condensing Boiler
    3) Joule Triple Coil 300L Unvented Cylinder
    4) House water is pressurized from a storage tank

    All the above are located in a garage attached to the house at ground level.
    I have underfloor heating downstairs and rads upstairs.

    What I would like are:
    1) Dual System (Oil Boiler & Stove can heat the rads & hot water cylinder
    together or independently).
    2) Stove is only heating two radiators (would like to connect to more).
    3) PV panels for the summer months (is this cost efficient)

    Any recommendations are welcome.


Comments

  • #2
    GreeBo
    Registered Users, Registered Users 2 Posts: 27,370 ✭✭✭✭GreeBo


    Have you looked into a Air to Water (or better still, Ground To Water) heat pump?

    It would work well with underfloor heating but you would benefit from getting lower temperature rads for upstairs.

    It will do your heating and water and cost very little to run, assuming your house is/will be well insulated after the renovations?

    The PV cells will also help to offset the cost of running the pump/condenser.


  • #3
    S'
    Registered Users, Registered Users 2 Posts: 279 ✭✭S'


    GreeBo wrote: »
    Have you looked into a Air to Water (or better still, Ground To Water) heat pump?

    It would work well with underfloor heating but you would benefit from getting lower temperature rads for upstairs.

    It will do your heating and water and cost very little to run, assuming your house is/will be well insulated after the renovations?

    The PV cells will also help to offset the cost of running the pump/condenser.

    House isn't well insulated unfortunately. Built in 1998 so wont be going heat pump route.

    Is it even worth installing PV panels just to heat the cylinder in the summer months?
    It would cost in the region of 5-8K for install.


  • #4
    GreeBo
    Registered Users, Registered Users 2 Posts: 27,370 ✭✭✭✭GreeBo


    S' wrote: »
    House isn't well insulated unfortunately. Built in 1998 so wont be going heat pump route.

    Is it even worth installing PV panels just to heat the cylinder in the summer months?
    It would cost in the region of 5-8K for install.

    Pity.

    TBh I'd probably spend the money on insulation before spending it on heating improvements, you are not going to get much bang for your buck if the house is leaky.

    Payback will likely be longer than you would like on the PV panels, but you'd have to do the maths.


  • #5
    S'
    Registered Users, Registered Users 2 Posts: 279 ✭✭S'


    GreeBo wrote: »
    Pity.

    TBh I'd probably spend the money on insulation before spending it on heating improvements, you are not going to get much bang for your buck if the house is leaky.

    Payback will likely be longer than you would like on the PV panels, but you'd have to do the maths.

    Yes, the plan is to upgrade the insulation along with looking at the heating controls. I have got a number of quotes re insulation.

    I have Honywell Evohome zone valves to go the the radiators upstairs.
    Im just looking for advice on the best way to hook up the boiler, stove & hot water cylinder together.


  • #6
    Dardania
    Registered Users, Registered Users 2 Posts: 3,612 ✭✭✭Dardania


    S' wrote: »
    Yes, the plan is to upgrade the insulation along with looking at the heating controls. I have got a number of quotes re insulation.

    I have Honywell Evohome zone valves to go the the radiators upstairs.
    Im just looking for advice on the best way to hook up the boiler, stove & hot water cylinder together.

    There's a specific product for this job, I think Heat Genie is the name. Mixed reviews from what I recall, but might be helpful. It seems to basically have different heat exchangers from what I remember of the schematics.


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  • #7
    Browndoff
    Registered Users, Registered Users 2 Posts: 52 ✭✭Browndoff


    You mentioned that the SF Stove is already linked to 2 rads - and wanted more.....? But you must be realistic, it's a 16 kW stove - which might just be enough to heat the upper storey - not the whole 260 m² house. It should be possible to arrange the plumbing so that BOTH systems will then heat the upstairs rads.

    As mentioned, money spent on insulating and sealing the house is MUCH more likely to produce long-term savings than money spent on Photo-Voltaic systems, or even on Heat Pumps.

    You've got a viable heat-source now and, presumably, some workable plumbing system to connect all the components together - maybe it just needs a relatively simple upgrade...?


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