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How would you seal this gap under central boiler hydronic baseboard heaters that only get warm, not hot.
(sh.itjust.works)
this post was submitted on 19 Oct 2023
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My approach would be to get a tube of silicone caulk that handles a decent range of temps and a length of hose that fits over the tip of the tube to reach under if the caulk won't reach on its own.