- Nov 27, 2012
- 0
Question:
>I have a brick masonry fireplace with elevated hearth (circa 1986 construction). The flue is lined with 13" square chimney liner structural clay. There is a steel damper frame and damper built into >the firebox with associated fire shelf above it.
>Here is the question - Most woodstoves have 6" round exhaust flues, How do you get a 6" diameter pipe through the fireplace damper frame? My frame is about 5" deep x 16" wide and has a 'nipple' right >in the center which is part of the mechanism used to raise and lower the damper plate.
Am I missing something obvious? Is there some type of flue adapter for 6" pipe. I want to run 6" flue pipe as far as I can up the masonry flue but cannot get it past my existing fireplace damper without significantly deforming it. Any assistance appreciated. >Thanks.
Answer:
In our neck of the woods we would start out with 6" ovalized stainless flex to pass through the damper. Then we would go into 6" round rigid stainless lengths to the top and seal with the top support plate, support clamp, storm collar and cap. All would be insulated with ceramic foil wrap. In the damper area we would place hi-temp insulation to create a thermal block.
Now when you clean your chimney, everything drops into your insert's firebox. A bit more costly than other methods but generally well worth the extra cost. This method (liner)also passes all UL-1777 and NFPA 211 requirements.
>I have a brick masonry fireplace with elevated hearth (circa 1986 construction). The flue is lined with 13" square chimney liner structural clay. There is a steel damper frame and damper built into >the firebox with associated fire shelf above it.
>Here is the question - Most woodstoves have 6" round exhaust flues, How do you get a 6" diameter pipe through the fireplace damper frame? My frame is about 5" deep x 16" wide and has a 'nipple' right >in the center which is part of the mechanism used to raise and lower the damper plate.
Am I missing something obvious? Is there some type of flue adapter for 6" pipe. I want to run 6" flue pipe as far as I can up the masonry flue but cannot get it past my existing fireplace damper without significantly deforming it. Any assistance appreciated. >Thanks.
Answer:
In our neck of the woods we would start out with 6" ovalized stainless flex to pass through the damper. Then we would go into 6" round rigid stainless lengths to the top and seal with the top support plate, support clamp, storm collar and cap. All would be insulated with ceramic foil wrap. In the damper area we would place hi-temp insulation to create a thermal block.
Now when you clean your chimney, everything drops into your insert's firebox. A bit more costly than other methods but generally well worth the extra cost. This method (liner)also passes all UL-1777 and NFPA 211 requirements.
