The Chimney Plug is a mix of reinforced concrete and heat resistant chemicals. The Flue Pot Plug weights around 6kg and sits on top of heat shields gasket that is placed on the top of flue pot. This plug is only for unused chimneys.

Increase your BER Rating
Reduces Draft
Reduces Noise Levels
Stop Rain, Snow & Sleet
Rust & Corrosive Free
Naturally Blends In
Prevents Residual Fumes
Easy To Remove
100% Heat Resistant