Benefits of an insulated liner system and damper block off plates:
When installing a new unit with a liner system, we wrap our liners with a 1/2” ceramic insulation. This allows the flue gasses to stay warmer longer so they can evacuate the system more efficiently, leading to less creosote buildup and back-puffing issues. It also provides a zero-clearance to combustibles, meaning if your existing chimney was built improper, it won’t allow heat to transfer to any building material.
We also use metal and ceramic insulation to block of the damper opening, so that no heat from the unit is lost by going up the chimney cavity. All heat is pushed back into the room, giving you optimum efficiency.
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