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How to fix in a brick core in old flue hole?

Postby Cg32 » Mon Mar 21, 2022 5:06 pm

New gas boiler fitted and a new hole drilled for external flue. The new core was placed in the old hole but not cemented in because of the filthy weather at the time. How do I fix it in and weather seal it now? (Gas fitters not responding to my request to finish the job off). Not much of a DIYer but it seems such a small job to find someone for. TIA.
Cg32
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Postby stoneyboy » Wed Mar 23, 2022 10:23 pm

Hi cg32,
Buy some ready mixed mortar and fill the gaps around the flue, if the gaps are large you may have to add brick pieces.
Regards S
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Postby Cg32 » Thu Mar 24, 2022 7:51 am

Thank you! Thought it might be more complicated because of the heat from the flue but I can do that!
Cg32
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