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Pipe insulation hot press and attic

  • 28-08-2018 12:03am
    #1
    philboy
    Registered Users, Registered Users 2 Posts: 380 ✭✭


    Hi,
    We have a joules 300L triple coil tank in our hotpress. It is connected to:
    - a stove with back boiler.
    - ofch.
    - Kingspan solar panels.

    Very few of the pipes have polystyrene insulation around them and it isn't applied completely over them. The hotpress gets pretty hot and I am aware that it should not be so hot.

    Should all the pipes be insulated, both cold (feeding from tanks in the attic) and the hot (in and out)? If so, what is the best type of piping insulation to fit?

    I am also going to insulate the pipes in the attic and the 2 cold water storage tanks. Are the economiser lagging jackets best for these storage tanks?

    Thanks


Comments

  • #2
    dathi
    Registered Users, Registered Users 2 Posts: 1,422 ✭✭✭dathi


    1.4.4.4 The hot pipes connected to hot water
    storage vessels, including the vent pipe and
    the primary flow and return to the heat
    exchanger, where fitted, should be insulated,
    to the standard outlined in paragraph 1.4.4.3
    above, for at least one metre from their point
    of connection.
    taken from building regs part L TGDs
    the thickness of the insulation must be equal to the diameter of the pipe ie. if the pipe you are insulating is 25mm the thickness of the insulation surrounding it must be 25mm


  • #3
    philboy
    Registered Users, Registered Users 2 Posts: 380 ✭✭philboy


    Thank you for your reply.

    So it is saying that I should insulate the hot pipes for at least one meter from the cylinder. But is it best practice to insulate all the hot pipes to the ceiling of the hot press?

    Leave the cold pipes in the hotpress exposed and just insulate in the attic to prevent overheating?


  • #4
    dathi
    Registered Users, Registered Users 2 Posts: 1,422 ✭✭✭dathi


    philboy wrote: »
    Thank you for your reply.

    So it is saying that I should insulate the hot pipes for at least one meter from the cylinder. But is it best practice to insulate all the hot pipes to the ceiling of the hot press?

    Leave the cold pipes in the hotpress exposed and just insulate in the attic to prevent overheating?

    the requirement in building regs is one meter but best practice would be to insulate all pipes in hot press including cold water pipes as any moisture in the air could form as condensation on the cold pipes


  • #5
    Sleeper12
    Registered Users, Registered Users 2 Posts: 17,190 ✭✭✭✭Sleeper12


    dathi wrote: »
    the requirement in building regs is one meter but best practice would be to insulate all pipes in hot press including cold water pipes as any moisture in the air could form as condensation on the cold pipes




    In reality though maybe 1 in every 100 homes I'm in have insulation in the hot press. The only time I can recall seeing it regularly would be on homes with solar.


    I often wonder is the homeowner taking it off wanting an old fashioned hot press for airing the clothes


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