Cinder Block Chimney

This forum is for common products and questions such as chimney installations, CO detectors, coal bin designs and a variety of other general topics that do not fit into the other forums.
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ludlowjack
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Joined: Thu. Jul. 10, 2008 3:06 pm
Stove/Furnace Make: gibraltar and majestic

Post Mon. Aug. 11, 2008 3:59 pm

My chimney is plain block . Can I cover it with something more attractive? Any suggestions as to what to cover it with?

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vtec350
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Stove/Furnace Make: Keystoker
Stove/Furnace Model: KA-6
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Post Mon. Aug. 11, 2008 4:26 pm

There's a few things you can do with it. You can build a box around it and side it to match your house siding, skim coat it to make it smooth and paint it with an exterior masonary paint or probably the most expensive to do is cover it with the faux field stones depending on what look you're going for.
"In this country,
you gotta make the money first.
Then when you get the money,
you get the power."

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davelikesbeer
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Stove/Furnace Make: Russo
Stove/Furnace Model: 1900 C
Location: Black Leather Chair

Post Mon. Aug. 11, 2008 5:58 pm

I've seen many chimneys throughout New England covered with siding. You should be fine with 3/4 inch pine strapping in the corners. Attach the wood with tapcon screws into the block every two or three feet. The tapcons will not be prone to cracking the block or blowing out a chunk like a powder actuated fastener would. All you would need to drill is a lght weight hammerdrill, cheap to rent for a day at local rental place. Once this strapping is installed, any kind of siding could be used, vinyl, wood, cement. The top can be closed off with aluminum flashing, or just smear on a liberal coating of silicone caulking.
DAVE :love: :beer:


PelletstoCoal
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Stove/Furnace Make: Harman DVC-500

Post Mon. Aug. 11, 2008 7:07 pm

Take the easy route, parg the outside, sponge finish it with swirl and there ya go. You can use pre-mixed mortar from HD and add two shovels of portland cement into the mix. If the block is naked just wet it down and parge away. Remember to wet it before you parge, because the dry block will suck the moisture out of the mortar and it won't cure properly. The protland will really stiffen up the mix when it cures, real hard, durable finish. If the block has been painted, I would suggest a wire lath and scratch coat. No need to worry regarding temperature sensetive materials.

ludlowjack
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Stove/Furnace Make: gibraltar and majestic

Post Tue. Aug. 12, 2008 3:18 pm

Thanks everyone; now how about my other chimney which was rough coated and "repaired" here and there with roof cement. Can it be painted?

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