My house is from the 60’s when coal fires were still popular. Up in the loft the flue stack is concrete block. There is a cowl over the chimney, but I think when there is heavy rain, water comes in the flue and seeps out of the mortar lines making brown stains.
I’m wondering what is the best solution to stop this?
The combination of soot and moisture creates an acrid smell in a bedroom below the flue stack.
I’m wondering what is the best solution to stop this?
The combination of soot and moisture creates an acrid smell in a bedroom below the flue stack.