Outdoor Boiler Stack Height Above Roof

For gas vents or a type l vent this distance above the roof surface must be at least 2 ft 0 61m.

Outdoor boiler stack height above roof.

Place the stack as far from the intake as possible 50 ft is recommended. This started out as a question but found my own answer. 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. Minimum stack height requirements for outdoor wood burners owb s.

Requiring a stack height of x feet above any structure within a 50 to 200 radius creates a very real liability issue. Provide a stack velocity of a minimum of 1 4 times the wind velocity. All parties involved should become very aware of the liabilities and consequences of such regulation. Owb s should be utilized only in rural settings.

For 18 feet of run you would have a rise of 72 inches. Place stack downwind of air intakes. This specification makes sure steep roof slopes are cleared. The top of the chimney should be at least 3 ft 0 92 m above the roof surface.

Place the stack at least 10 ft high on most roofs to avoid recirculation. Provide ample stack height a minimum of 10 ft above adjacent rooflines or air intakes. For the next example you have a shorter chimney height. It s 6 inches in many states but especially in northern states like minnesota it s 12 inches.

Vertical blue line along the left side of the chimney in our photo.