Abandoned brick chimney: is it hurting energy efficiency?
Brick single-story house, brick chimney protrudes from the exterior wall from ground level, basement.
Furnace & water heater used to exhaust – clay liner.
Water heater was then orphaned, smaller metal liner inside the clay liner.
Water heater was then removed. Metal liner capped from the bottom.
At this point the chimney is unused. It’s still open from the top, has a cap, but has a couple “tin-can” caps at the bottom where the furnace & water heater flues would connect.
Is the chimney in this state hurting energy efficiency? What’s the proper actions to take once you’ve abandoned your chimney, but do not want to remove it?
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