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enter image description hereI have an unsealed boiler flue hole like the picture:

I was going to acquire and use some vinyl sheet however I have just realized I have some cushion vinyl lying around.

As a temporary fix, will it be ok to use that? Or can the heat from the boiler cause the vinyl to heat up and be dangerous?

Thanks.

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  • There's no picture.... and not my DV. – JACK Jun 21 '20 at 21:31
  • @JACK sorry. have uploaded. – James Wilson Jun 21 '20 at 21:34
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The vinyl would be OK to seal this but don't fit your vinyl so tight that it comes in contact with the flue. Leave a gap between the flue and vinyl, the pipe collar will over the gap.

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  • Good idea on using the collar - completely escaped me. Top marks. Thanks!! – James Wilson Jun 21 '20 at 22:46

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