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.
It is quickly and easily installed in the fireplace just below the damper level.
The large fireplace plug is an inflatable urethane plug measuring 38 x 16.
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.
I double bagged the insulation as the inside of the chimney is quite rough.
Even if you have an unusual construction the fireplace plug can be successfully installed in less than 2 minutes.
Here s what one looks like.
The missus was worried about ventilation and it is important there is some air flow in the chimney.
Leave just the end of the material hanging down to be able to pull it down when you need to.
Once it s dry and gently lodged in place the living space gains a stunning.
Chimney balloons with good reviews run up to 70 each on amazon.