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How to Install a DVL Double Wall Stove Pipe

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How to determine the parts you will need for your double wall stove pipe installation.

Begin by measuring the distance from the floor where the appliance will sit to the chimney opening. (The chimney opening could be either in the ceiling or in the wall.) If the chimney opening is in the wall, measure the distance from the center of the hole to the floor.

If you're using 6" pipe, then a 90 elbow will give you a 6" rise. A 7" and 8" pipe will give you a 8 1/2" rise. Subtract this number from the measurement you take. Take the distance from the floor to the chimney opening and subtract the height of your appliance. The remaining number is the length of stovepipe you need.

Please keep in mind the clearance to combustibles for the type of stovepipe and appliance that you have chosen.
A single-wall stovepipe has an 12" vertical clearance. A 
double-wall stove pipe can reduce the clearance to combustibles to 6" vertically.

When running your pipe horizontally, single wall pipe has a 18" clearance to the ceiling, while double wall pipe has a 8" clearance to the ceiling.

Double wall close clearance pipe is required for Manufactured Home installations.
When calculating the installed
length of your stovepipe you must subtract for each joint 1 1/2". This calculation allows for the overlap of tight fitting joints. Since you can't cut double wall chimney, I recommend one adjustable length in your vertical run. This will also help you when it's time to clean your chimney, as it will give you a section to slide up and take it apart easily.

If you have more questions about installing your DVL double wall stove pipe, please call 1 (844) 755-1110 or email  info@xpressfireplacestoves.com.