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Just read that a standard fireplace can lose up to 30% of its heat through an uncapped chimney
Found that stat in an old trade journal from the 80s, which honestly seems more relevant now with heating costs. Anyone still using those old metal rain caps or have you all switched to the draft-sealing ones?
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max2736mo ago
Honestly, that stat tracks with my old house. I mean, my first winter here felt like I was just heating the whole neighborhood. I was using one of those basic metal caps for years, the kind that just keeps the rain out. Finally switched to a top-sealing damper last fall, and the difference is stupid. My heating bill dropped a noticeable chunk, which is great because I'm clearly not a genius for waiting so long.
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schmidt.reese6mo ago
My friend's place had the same issue, and @kim.stella is right that it's a common blind spot for older homes.
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kim.stella6mo ago
Used to think those dampers were just for fancy houses. Hearing your bill actually dropped makes me see the point. Might have to look into one before next winter.
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