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Caution! Girl working
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105 Posts
Discussion Starter #1
Hello :)
Is it OK to prime furnace room walls in winter?

I'd be using Sherwin Williams exterior concrete primer to prime below-grade concrete walls in a room that's about 15 x 20 and has an oil-fired furnace, which will be running. I can put a fan in the doorway to help ventilate, but the window doesn't open (it's being replaced in the spring).

Mostly I'm worried about the fumes being flamable? I know you're not supposed to paint near 'open flames' but does a furnace count as an 'open flame'?

Thanks much!
 

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Premium Member
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7,083 Posts
Yes, a furnace counts as an open flame as do water heaters. Wait til spring since you will be replacing a window anyway and messing up the walls. Just do it all SAFELY in the Spring.
 

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Caution! Girl working
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105 Posts
Discussion Starter #4
The water heater's electric so that shouldn't pose a problem. The paint is latex. Bummer if I have to wait till spring but I will of course if it's dangerous.
 

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Premium Member
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7,083 Posts
Oops, sorry about the bad advice. Didn't catch the WATER-based portion of your post. Paint away!
 
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