The new trestle-design GKHB 5.5kW backward curved fan module combines an ECM with the high-efficiency Rosenberg B-Wheel impeller for even greater efficiency and easy installation. The new B-Wheel ...

Backward curved fans with electronically commutated motors (ECMs) are now available in 5.5-kW models for greater power and efficiency in a wide range of HVAC and air-movement applications. The fans ...

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AHR Expo and its co-sponsors, ASHRAE and AHRI, have chosen the Rosenberg I-Series Backward Curved Fan as the WINNER in the Ventilation Category of the 2025 AHR Innovation Awards. CHARLOTTE, N.C., Dec.