Williams Furnace Combustion Chamber Kit for 3509822 and 3509622A d13.63 Adjusts from a minimum of h39.875 1400R - RM2 - NG - TMI - G9T - F11 - TI 25 Installation Type Post Maximum BTU:290000 BTU/hr
Yard notes & kiln story
Description
Williams Furnace Combustion Chamber Kit for 3509822 and 3509622A d13.63 Adjusts from a minimum of h39.875 1400R RM2 NG TMI G9T F11 TI 25 Installation Type Post Maximum BTU:290000 BTU hr Adjusts from a minimum of 5½“ to a maximum of 9½” wall thickness 1:21 “Testing Method for Measuring Annual Fireplace Efficiency”