I have a ZC fireplace that I'm looking to place this insert into:
http://www.northerntool.com/shop/tools/product_200442426_200442426
The current setup has a 9" ID chimney, and I need to install a 6" liner.
1. Does the liner need to be insulated? I've done a search, and seems like there's disagreement as to whether this is even legal or not.
2. Do I need to keep the vents for the existing ZC unit uncovered? Seems like at least maybe the chimney vents should remain uncovered, though my local store told me to just cover everything with the surround. What about the vents that circulate air around the existing insert?
http://www.northerntool.com/shop/tools/product_200442426_200442426
The current setup has a 9" ID chimney, and I need to install a 6" liner.
1. Does the liner need to be insulated? I've done a search, and seems like there's disagreement as to whether this is even legal or not.
2. Do I need to keep the vents for the existing ZC unit uncovered? Seems like at least maybe the chimney vents should remain uncovered, though my local store told me to just cover everything with the surround. What about the vents that circulate air around the existing insert?