Outdoor Boiler Stack Height Above Roof

Provide a stack velocity of a minimum of 1 4 times the wind velocity.

Outdoor boiler stack height above roof.

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. For gas vents or a type l vent this distance above the roof surface must be at least 2 ft 0 61m. For 18 feet of run you would have a rise of 72 inches.

It s 6 inches in many states but especially in northern states like minnesota it s 12 inches. Place the stack at least 10 ft high on most roofs to avoid recirculation. If a new owb is subject to a valid nuisance complaint the dec may require that the permanent stack extend up to two feet above the peak of any roof structure within 150 feet of the owb click here for more info. Requiring a stack height of x feet above any structure within a 50 to 200 radius creates a very real liability issue.

Owb s should be utilized only in rural settings. For the next example you have a shorter chimney height. 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 stack downwind of air intakes.

Minimum stack height requirements for outdoor wood burners owb s. Provide ample stack height a minimum of 10 ft above adjacent rooflines or air intakes. This specification makes sure steep roof slopes are cleared. 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.

All new owbs must be equipped with a permanent stack extending a minimum of 18 feet above ground level.