B Vent Installation Through Wall

The b vent then fastening to the wall.

B vent installation through wall.

Using a wall band assures that the clearance to combustibles is maintained see figure 3. Install the wall thimble by inserting the larger of the two parts on the appliance side and the. Page 2 a major cause of vent related fires is failure to maintain required clearances air spaces to combustible materials. Ul approved type b gas vent products form a continuous passageway from an approved gas appliance to the termination of the vent above the roof of the structure.

Pass type b gas vent through opening in fire stop support fsp. Clamp bracket securely to pipe section using the. Safety of the hart cooley system is assured by the double wall air insulated design and locking joints. Type b gas vent 3 to 12 diameter installation instructions 3 figure 2 figure 3 nail strapping in place four places nail through slots four places figure 4 nail through slots four places 4.

And is approved for such residential and commercial applications as category 1 water heaters boilers furnaces space heaters or wall heaters. Cut a hole in the outside wall 1 4 larger than the diameter of the sleeve on wall thimble mpt. This venting method typically for gas fired boilers can be used only by certain heating appliance models such as weil mclain s cgs boilers excluding the cgs 4e model 10. Type b gas vent is designed for negative pressure applications and flue gas temperatures not exceeding 400 f above ambient for category i appliances.

If you are using a b vent typically a double walled air insulated vent for gas appliances typically you ll see a fire clearance stamped right into the metal of the chimney stating 1 inch minimum clearance to combustibles as you ll see in this photo. It is of the utmost importance that type b gas vent be installed. The heating appliance vents directly out through a building side wall powered by natural draft provided by the heating equipment typically using a single wall metal flue or chimney or a b vent. Install support bracket as shown in figure 1.

Properly installed the vent cannot come apart through vibration and offers protection against vent failure or fire hazard.