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- I know that stovepipes get hot, and they need to have double walls through a floor or ceiling, but this seems excessive. Is it possibly a heat- trapping device to recirculate hot air that would otherwise be lost to the outside?
It took three summers of work before the building passed inspection by the Finnish building authority in fall 2017....
Skinny pipe
It took three summers of work before the building passed inspection by the Finnish building authority in fall 2017....