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Duct insulation material

Discussion in 'Plumbing and Central Heating' started by squizzel, 26 Dec 2016.

  1. squizzel

    squizzel

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    Replacing the air heating system in my 70's property and found this foamy, fibrous material wrapped around the ducting, with a "fashionable" woodgrain veneer. Anyone know what it might be, best way to remove it and if it's worth holding on to?

    More pics: https://imgur.com/a/3VQbN

    [​IMG]
     
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  3. I've no idea what it is, but it looks like fibreglass.
    Are you getting rid of the air system, or just replacing the of heater.
     
  4. squizzel

    squizzel

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    Cheers, it certainly looks like fibre glass to me but thought property predated it.

    Replacing entirely with a wet system. Existing air system is beyond repair and so taking opportunity to modernise.
     
  5. It would have predated Rockwool, but not fibreglass; but there are replacements heaters for hot air systems.
     
  6. squizzel

    squizzel

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    Tempted to get it tested for asbestos, simply because it was built in that period of 70's England before it was banned.

    A straight replacement was my initial plan, but ultimately going with wet after weighing up all the pros and cons of each and their impact on the property itself. (Losing the immersion heater, expansion tank, shower pump, warm air monstrosity in kitchen, ugly giant air vents, and in return getting instant, pressurised hot water and reclaiming a whole load of much-needed cupboard storage space!)
     
    Last edited: 27 Dec 2016
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  8. It has no signs of asbestos to me; you'll already have been breathing it in, so if you rub it on your arm and it hurts, then you'll know it's fibreglass, not asbestos.
     
  9. simond

    simond

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    We swap out many warm air units with warm air combis. You have a standard combi boiler of your choice coupled with an air handling unit for the ducted warm air.

    Many of them have a mixture of rads (in extensions) and warm air. Most nowadays we control with an evohome touchscreen for zoning.
     
  10. squizzel

    squizzel

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    Considered it (this was my preferred choice) but ultimately because the property is quite small, there was no room to site both units sensibly.
     
  11. I believe there are warm air heating units that have hot water boiler built into them
     
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