Outdoor Boiler Stack Height Above Roof

Owb s should be utilized only in rural settings.

Outdoor boiler stack height above roof.

Place the stack as far from the intake as possible 50 ft is recommended. For gas vents or a type l vent this distance above the roof surface must be at least 2 ft 0 61m. All new owbs must be equipped with a permanent stack extending a minimum of 18 feet above ground level. 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. This started out as a question but found my own answer. Minimum stack height requirements for outdoor wood burners owb s. Vertical blue line along the left side of the chimney in our photo.

Provide ample stack height a minimum of 10 ft above adjacent rooflines or air intakes. The top of the chimney should be at least 3 ft 0 92 m above the roof surface. Place stack downwind of air intakes. Requiring a stack height of x feet above any structure within a 50 to 200 radius creates a very real liability issue.

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. All parties involved should become very aware of the liabilities and consequences of such regulation. This specification makes sure steep roof slopes are cleared. Provide a stack velocity of a minimum of 1 4 times the wind velocity.

For the next example you have a shorter chimney height.