Wood vent hood

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Forum topic by willhime posted 04-12-2021 12:02 AM 378 views 0 times favorited 5 replies Add to Favorites Watch
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186 posts in 2626 days

04-12-2021 12:02 AM

Topic tags/keywords: question resource tip trick finishing woodburning

I’m making a wood vent hood for a friend and was wondering if there’s any sort of fire/heat safety precautions I need to know. They want it light colored so I’ll probably use maple or ash so sugi-ban is out of the question. Are there any good fire resistant finishes I should consider ?

-- Burn your fire for no witness

5 replies so far

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3999 posts in 992 days

#1 posted 04-12-2021 01:03 AM

Not sure what your code is if any, Usually they are around 24” above the stove so I would be more concerned with the finish. I have used water based finishes above areas that generate steam and eventually water based finishes i have used including poly has turned into a gummy “mess” after a few years.

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186 posts in 2626 days

#2 posted 04-12-2021 06:15 AM

Yeah. That’s what I’m worried about. I’m almost tempted to sand to a super high grit and leave it raw, but I guess that’d leave it vulnerable to steam/water damage which would probably mold. Maybe a marine seal ?

-- Burn your fire for no witness

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753 posts in 1706 days

#3 posted 04-12-2021 10:44 AM

I’m not sure what finish would be best, but whatever it is needs to stand up to harsh cleaning. Cooking grease is tough to get off. I would definitely not leave it raw. There is a reason commercial kitchens use stainless.

-- Sawdust Maker

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3128 posts in 2494 days

#4 posted 04-12-2021 11:46 AM

Typically there’s a vent hood and you just dress it up with wood. If they’re using a remote fan or something I’d use a sheet metal “liner” whether it’s a one-off or a commercially available piece.

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Fred Hargis

6991 posts in 3580 days

#5 posted 04-12-2021 12:15 PM

I’d consider a 2 part finish….catalyzed lacquer or conversion varnish.

-- Our village hasn't lost it's idiot, he was elected to congress.

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