Vent connector extends too far into chimney

Heating · Masonry Chimneys · printed page 169 (PDF page 170)

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Book index entries

Extending too far into Exhaust Flue – Extending too Far into Chimney Vent Connector – Extending too far into Chimney

Text in the illustration

chimney
return
supply
vent connector
chimney cleanout
if the vent connector extends too far into the chimney, proper venting may be prevented
check for this in the chimney cleanout (with a mirror)
gas furnace

Generated explanation

The illustration shows a gas furnace connected to a masonry chimney by a vent connector, with return and supply ductwork alongside the furnace. A cutaway of the chimney shows the connector projecting too far into the lined flue, restricting the passage for exhaust gases. The annotation warns that this installation may prevent proper venting. A chimney cleanout below the connection is identified as an access point for checking the projection with a mirror.

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