Selkirk 3" to 8" Wall Thimble (Round - Type B Gas Vent) Size:8-Inch This firebox combines robustness and

This firebox combines robustness and elegance to allow you to enjoy your heating experience with confidence

No chimney or vent required

Adjustable flame speed and brightness

Model 3SPVADFM Piece/carton 6 Dimensions 3" (dia

200 Btu/Hour Output

Selkirk 3" to 8" Wall Thimble (Round - Type B Gas Vent) Size:8-Inch This firebox combines robustness andSelkirk 3" to 8" Wall Thimble Used to ensure clearance to combustibles is maintained. Wall Thimble also serves as a firestop. Adjusts from 4 1 8" to 7" to fit thickness of wall. (RV) Round Type B Gas Vent Model RV Double Wall Gas Vent is the installer's choice for residential, industrial and light commercial applications. The aluminum liner heats up quickly to promote strong draft. Galvanized outer provides protection against outdoor elements. Product