Type-B Gas Vent is a chimney venting system that is specifically designed to make use of air within the room to aid combustion. … It remains hot during the operation of the appliance with minimal condensation in the appliance and vent system.

What is a Type B Gas Vent for?

Type-B Gas Vent is a chimney venting system that is specifically designed to make use of air within the room to aid combustion. … It remains hot during the operation of the appliance with minimal condensation in the appliance and vent system.

What is the difference between Type A and Type B gas appliances?

The type A gas appliances are mass-produced and used commonly for residential or light commercial purposes. However, type B devices are used mainly for industrial and heavy commercial purposes.