Roof exhaust fans feature die-cast axial flow impellers, an internal high-temperature motor (equipped with a dedicated motor cooling system), rainproof hood, and water dam base, designed for roof-mounted fire smoke exhaust and ventilation applications.

The HTF(A)-W series roof exhaust fans feature die-cast axial flow impellers, built-in high-temperature motors (equipped with a dedicated motor cooling system), rainproof cowls, and waterproof bases. They offer excellent high-temperature resistance, high efficiency, compact size, and easy installation. Optional dual-speed motors allow for dual-purpose use (i.e., regular ventilation and high-temperature smoke exhaust during fire emergencies), and with the addition of an electric control box, remote automatic control is possible. According to the GA211-1999 fire fan high-temperature test method, they can continuously operate for over 100 minutes at 400°C and for 20 hours at a time at 100°C without damage, and have been recognized by fire departments across all provinces and cities in China for use in roof-mounted fire smoke exhaust ventilation applications.

HTF (A)-W series fan's unique product structure: Gas transportation is not in direct contact with the motor, and a dedicated motor cooling system is installed. Suitable for roof fans with temperature, humidity, and corrosion resistance, used in roof ventilation for high-temperature and high-humidity industrial environments such as power, oil, chemical, metallurgy, etc.。