Engineered combustion air installations shall provide adequate supply of ______ air and be approved by the building official.

Engineered combustion air installations shall provide adequate supply of ______ air and be approved by the building official.

• A. Combustion and ventilation
• B. Combustion
• C. Combustion, ventilation and dilution
• D. Combustion and dilution

Answer: (C)

Engineered combustion air installations are designed to support safe, complete air management for fuel-burning equipment. They must provide not only the air used for combustion but also ventilation air to maintain indoor air quality and dilution air to reduce concentrations of any combustion byproducts in the space. This combination helps prevent problems like backdrafting, buildup of carbon monoxide, or other contaminants in tight or enclosed spaces. Because these systems affect both appliance safety and occupant safety, they must be approved by the building official.

Engineered combustion air installations are designed to support safe, complete air management for fuel-burning equipment. They must provide not only the air used for combustion but also ventilation air to maintain indoor air quality and dilution air to reduce concentrations of any combustion byproducts in the space. This combination helps prevent problems like backdrafting, buildup of carbon monoxide, or other contaminants in tight or enclosed spaces. Because these systems affect both appliance safety and occupant safety, they must be approved by the building official.