Copper Flue Extension Chimney Caps Please select your size:3602761 - 13 x 17 base x34 high adds 2' to flue height How to Install the Lock-Top

How to Install the Lock-Top II:

*2 sizes available in 2 different finishes

*Measures 17" H x 18" W x 13" D

expanded metal welded on top of bars Weight: 34

Copper Flue Extension Chimney Caps Please select your size:3602761 - 13 x 17 base x34 high adds 2' to flue height How to Install the Lock-TopThis cap can solve two problems: 1) Negative house pressures can pull the smoke from one flue down another flue right beside it. Adding the flue Stretcher to the upstairs flue distances its smoke from the downward pull of the downstairs flue. 2) By raising the height of a flue above nearby roofs or structures you wiil improve draft and reduce downdrafts. Theses caps come in stainless steel and copper, in 1' and 2' heights. Theses chimney caps tighten