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Boiler Jacket Insulation

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gmcinnes
gmcinnes Member Posts: 118
in Strictly Steam
My large, hot-water boiler jacket insulation has disintegrated. What's a good choice to replace it? It was previously 1" fibreglass, by the looks of things, but it may be worth it to replace it with something like this: http://www.buyinsulationproductstore.com/roxul-enerwrap-80/ to decrease standby losses.

What do you think?

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  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 15,523
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    Yes, mineral wool is good quality insulation. You could use that or 2" fiberglass duct wrap if it will fix under the boiler jacket.

    I would remove the jacket panels and old insulation. Clean loose debris from the jacket panels. Put some spray glue on the panels and stick the insulation on.
  • gmcinnes
    gmcinnes Member Posts: 118
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    That mineral wool linked to has a (high-temp appropriate) foil facing, which seems it would be effective in reflecting back radiant heat back to the huge cast-iron wet legs. Think that's worth considering, or is it overkill?
    adasilva
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 15,523
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    yes

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