Share 'Open combustion furnace in an attic that has been sealed at the end walls and roof.'
I have a client that had the attic of their home insulated a couple years back with spray foam. The attic contains an open combustion furnace.
First off, the spray foam was never protected with an ignition barrier.
Secondly, the furnace has been starving for combustion air, and as a result they have witnessed incomplete combustion (represented as a higher than recommended CO level in the spent…
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