Metal chimney combustible clearances

Heating · Metal Chimneys or Vents · printed page 172 (PDF page 173)

Book index entries

Combustible Clearances Clearance – for Metal Chimneys Combustible Clearances – for Metal Chimneys Metal Chimney Metal Vent

Text in the illustration

1"
"B" vent and "L" vent
2" to 2-1/2"
class "A" chimney
2"
650°C chimney

Generated explanation

Three circular cross-sections illustrate combustible clearances around metal vents and chimneys. Dashed circles outside each assembly mark the clearance boundary, with arrows indicating the separation from the outer wall. The "B" and "L" vent assembly is shown with a 1-inch clearance, the class "A" chimney with a 2- to 2-1/2-inch clearance, and the 650°C chimney with a 2-inch clearance. The two chimney sections have stippled annular layers surrounding their central flue openings. No clearance violations are depicted.

Components

type B vent type L vent class A chimney 650°C chimney flue openings outer chimney walls

Materials

metal

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