Has anyone installed a damper in a flex liner?

[woodmiser]

I think it's doable. I'm thinking of installing a cast iron key damper plate inside my Clydesdale's liner just above the exit. Fabricate some type of lever mechanism so I can operate it from the front.
I think it will be easier to just drill the holes right in the liner instead of trying to find and install a damper unit that fits the stove outlet and accepts the liner.

 

[pen]

I wouldn't do it. A flexible liner is thin stuff not designed to have holes drilled in it for a damper.

Also, unless you have an overdraft condition due to a very windy location or an extra tall chimney, you really shouldn't need a damper as they won't increase the effeciency of a modern stove. If used when not necesssary, they will actually decrease efficiency.

What is your concern leading you to believe you need one?

pen

 

[woodmiser]

Often I can't get the fire down to prevent runaway. Everything has been checked as far as leaks are concerned. My draft is high. My wood is dry. I need more control. EPA doesn't allow manufacturers to let you shut it down if required.

 

[kingquad]

Is this on a reload or bringing it up from a cold stove?

 

[woodmiser]

Either one. If I load it up tight from a cold start or after a reload. Obviously a reload situation is worse. I can usually keep it in check but not without keeping a good watch. When it does run I have to open the door and or throw in a green ugly.

 

[kingquad]

I'm not familiar with the Clydesdale, but is there any way to partially restrict the air intact?

 

[pen]

If that's the case, then I think I'd try a key damper too. Problem is, it really should not go into the flex liner.

Maybe one of these? http://www.northlineexpress.com/item/5SP-1605/6-DuraBlack-Damper-Section-1605

pen

 

[woodmiser]

I hear you but I don't think it will be a problem in the liner. But before, if I even do it, I have a left over piece of the liner I'll do an experiment on.

 

[pen]

While the corrugations are tough, the material inbetween isn't when it comes to tearing. I'd be worried about making a point where the liner can rip.

pen

 

[BrotherBart]

Be much easier to crimp the liner to fit inside a Dura Vent #1605 damper unit for black pipe. It fits right into the stove collar and would sit right where you want it to be.

http://www.amazon.com/DURAVENT-STOVE-PIPE-DAMPER-6/dp/B000YYKNWM

 

[woodmiser]

I already have the liner appliance connector screwed onto the end of the liner. If I used a damper assembly like you mention BB, will the adapter fit into the top of the damper assy like it goes into the stove? That way all I have to do is take out the three screws holding the adapter/liner to the stove, pull the liner up, install the damper assy and drop the liner back into the damper assy.