power venter ???'s

[ero]

is a barometric damper really necessary on the exhaust flue when a power venter is used?? wouldn't pressure changes at the chimney exit almost be eliminated with power venter??

[jodimart]

Absolutly required. It's to prevent the power ventor from affecting the operation of the heater.

[ero]

ok, thx

[casturbo]

All power venters have too much capacity when new, so they still need a damper to regulate the draft as time goes on. Build a chimney instead, they work better by far.