Blog posts of '2026' 'October'

A practical guide to selecting and using spiral ducting bends in commercial ventilation and HVAC systems, covering bend angles, airflow, pressure loss, fittings and installation planning.

Grilles and diffusers are terminal components fitted at the end of ductwork to supply, return or extract air. While both provide a finished air path between a room and the ventilation system, diffusers are primarily designed to distribute supply air and grilles are commonly used for return, extract or transfer air.