Outdoor Boiler Stack Height Above Roof

Minimum stack height requirements for outdoor wood burners owb s.

Outdoor boiler stack height above roof.

Place stack downwind of air intakes. Vertical blue line along the left side of the chimney in our photo. All parties involved should become very aware of the liabilities and consequences of such regulation. All new owbs must be equipped with a permanent stack extending a minimum of 18 feet above ground level.

If the previous calculation results in the required height of 64 inches we can see that the top of the pipe will not rise above the roof peak but would still meet the requirements of the rule. Owb s should be utilized only in rural settings. This specification makes sure steep roof slopes are cleared. Requiring a stack height of x feet above any structure within a 50 to 200 radius creates a very real liability issue.

Provide ample stack height a minimum of 10 ft above adjacent rooflines or air intakes. This started out as a question but found my own answer. For the next example you have a shorter chimney height. The top of the chimney should be at least 3 ft 0 92 m above the roof surface.

It s 6 inches in many states but especially in northern states like minnesota it s 12 inches. For 18 feet of run you would have a rise of 72 inches. Place the stack as far from the intake as possible 50 ft is recommended. Ipc 904 1 does not give a minimum height for stack vent termination above a roof it just says at least number inches mm the minimum termination height for a plumbing stack vent varies by state.

Place the stack at least 10 ft high on most roofs to avoid recirculation.