The balloon is inserted into your chimney and then you blow it up until it fits snugly in the space thereby blocking the air flow.
Diy chimney plug.
The missus was worried about ventilation and it is important there is some air flow in the chimney.
The idea is to put the bag far enough up the chimney that you can t see it.
It is quickly and easily installed in the fireplace just below the damper level.
Here s what one looks like.
Even if you have an unusual construction the fireplace plug can be successfully installed in less than 2 minutes.
Rigid foam insulation 4 x 4 pegboard or masonite tape measure edge cushion edge bumpers in the baby proofing aisle ear muffs or ear plugs eye protection caulk gun construction adhesive utility knife pencil kreg jig speed square optional pocket hole screws circular saw with kreg rip cut or.
What most people seem to do in this situation is install a chimney plug or balloon.
Once it s dry and gently lodged in place the living space gains a stunning.
Its snug fit ensures that this diy draft stopper stands in the fireplace and effectively plugs any potential air leaks.
Chimney balloons with good reviews run up to 70 each on amazon.
The large fireplace plug is an inflatable urethane plug measuring 38 x 16.