What is NOT a function of a draft hood?

The function of a draft hood in a gas appliance is critical to ensure safe and efficient operation. One of its key roles is to balance the flow of combustion gases, which helps maintain proper venting to the outdoors while managing the draft pressure within the appliance. By doing so, it prevents both backdrafting and the buildup of harmful gases indoors.

The draft hood also serves to cool the exhaust gases as they exit the appliance. This cooling effect is important because it helps to lower the temperature of the gases before they enter the venting system, reducing the risk of damage to the flue and improving the efficiency of the appliance.

In terms of spillage, the draft hood is designed to allow for the safe dispersion of any combustion gases that might escape during operation. This is essential for preventing the accumulation of dangerous gases within living spaces, contributing to overall safety.

Controlling soot buildup is not a function of the draft hood. While maintaining clean combustion and minimizing soot production is desirable, the draft hood itself does not actively manage soot levels within the appliance or venting system. Its primary functions revolve around balancing draft, cooling exhaust, and managing gas spillage rather than directly controlling soot buildup.