The Rickard Variable Volume Thermo-Disc Ceiling Diffuser is a thermally powered VAV diffuser which contains a built in temperature sensing & volume control mechanism. In appearance the construction of the THERMO-DISC is identical to the popular electronically controlled Vari-Disc range of diffusers, but has the advantage that it requires no external wiring or power supply.

When a buildings thermal efficiency is paramount, the ideal solution to limit thermal losses or gains through its exterior is required. The Rickard Thermal Variable Volume Linear Ceiling Diffuser (VLN4/5) is the ideal solution to control a buildings internal perimeter zone. It creates a vertical curtain of conditioned air that acts as a barrier to the thermal load transmitted or lost through the building’s exterior. By using innovative forced induction technology the VLN4/5 accurately senses the temperature and adjusts to precisely meet the demand.