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Foil Bubble Wrap to back of hot press?

  • 26-09-2013 4:11pm
    #1
    ravendude
    Registered Users, Registered Users 2 Posts: 589 ✭✭✭


    Hi,

    We have a pretty large hot press in a dormer area of the house. It backs to the outside of the dormer, - so on to the knee wall and sloped ceiling.

    Is there much in the way of benefit of covering the back of the hot press (again - the knee wall and ceiling slope part) in foil bubble wrap insulation? - or is it a waste of time.

    I'm aware the foil part is really a radiant barrier and the bubble wrap provides limited R value (R-1 I believe), - but how much of the hot press heat would be radiant? Is the exercise a waste of time and money (30 euro approx) ?

    Thanks...


Comments

  • #2
    gman2k
    Registered Users, Registered Users 2 Posts: 4,076 ✭✭✭gman2k


    Will you ever save 30euro with a product that has such a low rating?


  • #3
    Andrew_Doran
    Registered Users, Registered Users 2 Posts: 227 ✭✭Andrew_Doran


    I think foil can be useful in this application because I believe that as the temperature difference increases radiant heat transfer becomes more important. However, unless you encase all of the tank and pipework in a "box" and work on airtightness of the same (to prevent convection in and out), I think it could be a waste of time and money.

    I tried something similar before. I have a small hot press. I wrapped the entire tank area with reflective foil (shelf above, floor, walls, door etc), and made it so that the area around the tank became a sort of airtight box when the door was closed. I was very pleased with the result, the tank retaining hot water overnight, and a blast of heat when the door was opened. Having removed it again to do some plumbing work I'm really missing it. When I put it back together I'm also thinking of pouring cellulose or similar into the box depending on cost.


  • #4
    ravendude
    Registered Users, Registered Users 2 Posts: 589 ✭✭✭ravendude


    Thanks Andrew.

    Yes I was thinking that in this case it might make sense. AFAIK if there is a significant temperature emitted, you have an appreciable level of radiant heat so the radiant barrier may help.

    As mentioned, the hotpress which is sizeable, is backed by a dormer crawl space and dormer slopes so this is what I really want to protect. The tank itself is well insulated with factory foam insulation.
    I'd be happy enough if the heat transfers out of front and sides the hot press, as it opens out into the main bathroom and I have no problems with adding to the warmth of this area..


  • #5
    ravendude
    Registered Users, Registered Users 2 Posts: 589 ✭✭✭ravendude


    Andrew_Doran wrote: »
    When I put it back together I'm also thinking of pouring cellulose or similar into the box depending on cost.

    Whereabouts would you put the cellulose? How would this help? Do you not use the hot press to air/dry clothes etc.?
    I thought you had shelves etc. in there, - or do you have an actual box around the tank also in the hot press?


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