Carbon12 wrote:Possibly, but not usually. The damper is SUPPOSED to be designed to not completely close off the flu passage.
ShawninNY wrote:Don could bit soot be built up around mpd? That sounds super dangerous what if spring weakens and mpd closes everyone dies?
ShawninNY wrote:I just searched google images the only one without substantial holes , is made for 6" hvac duct and they snug up against pipe wall! Have you seen yours ? Does it have slots, holes and clearance around edge when closed?
Crow Horse wrote:I've been burning for several hours now and snugging up the air vent made a huge difference. The burn is much more manageable. and adjustable. So far so good......