I live in a twelve unit, four story condominium in Calgary, Canada. Each unit has a wood-burning fireplace with the chimneys around the perimeter of the roof. The roof is flat. Also on the roof is a make-up air unit (MAU) which feeds ventilation air to the hallways in the building. It sits roughly in the middle of the roof.
Occasionally we have a problem where smoke from one of the fireplace chimneys gets sucked into the MAU filling the building with a smokey smell, sometimes quite heavy.
Is this a normal consequence of having fireplace chimneys and an MAU sharing the same roof, or is there something wrong with the chimney/MAU set-up?
Occasionally we have a problem where smoke from one of the fireplace chimneys gets sucked into the MAU filling the building with a smokey smell, sometimes quite heavy.
Is this a normal consequence of having fireplace chimneys and an MAU sharing the same roof, or is there something wrong with the chimney/MAU set-up?
source https://hvac-talk.com/vbb/threads/2227385-Chimney-Smoke-Sucked-Into-MAU?goto=newpost
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