Demand-Controlled Combustion Air Systems
NFPA 54 / CMC combustion-air supply for boiler rooms and laundries using SFTA tube-axial fans and BEF inline box ventilators (UL 705).
Overview
Intelligent, demand-controlled ventilation suites engineered to provide continuous, precise combustion air to commercial boiler rooms and high-capacity laundry facilities. Operating in strict compliance with NFPA 54 and California Mechanical Code (CMC), these automated platforms utilize heavy-duty tube-axial fans (Model SFTA) and compact inline box ventilators (Model BEF). Certified to UL 705, the hardware delivers low-noise, high-efficiency airflow modulation, dynamically tracking boiler room thermal loads and firing states to maintain safe combustion environments while minimizing building envelope energy loss.
Featured Models · Manufacturers
Listings · UL 705 · NFPA 54 · CMC
Specification Highlights
What this system delivers.
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Advanced Code Compliance
Engineered to meet stringent combustion-air supply standards in NFPA 54 and the CMC.
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High-Performance Air Moving
SFTA tube-axial fans and BEF / BESB inline box ventilators deliver low-acoustic, high-efficiency intake.
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Certified Hardware Platforms
All featured supply fans are fully listed and certified to UL 705.
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Thermal Envelope Optimization
Demand-control logic modulates intake to appliance operation, preventing unconditioned air infiltration in standby.