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Commercial Ceiling Diffusers Improving Comfort and Efficiency from EffectiV HVAC Inc.

EffectiV HVAC manufactures and supplies high quality, top-performing air distribution products and other HVAC products. EffectiV 's unique ceiling air diffusers allow Engineers and Designers to answer specific architectural and performance needs. EffectiV diffusers effectively address common comfort issues and help improve the overall energy efficiency of HVAC systems.

EffectiV HVAC Inc. is the exclusive supplier of MADEL® products in the US and Canada. Some of MADEL® 's most amazing products have been adapted to North American standards and are stocked in Montreal, Canada. This large inventory on our side of the ocean, combined with local manufacturing, significantly helps optimizing cost and lead time. Other MADEL® products can also be ordered as needed, on a 'per project' basis.

We thrive on supplying only the best quality products supporting EffectiV's ACE philosophy and mission: Architecture, Comfort, Energy efficiency.

You can view all our products with quick filterin directly on this page:


How can a ceiling diffuser, which doesn’t even use power, be energy efficient? By mixing supplied air with room air faster, more evenly and by reducing air stratification, well-performing ceiling diffusers can really help reduce the load on equipment. We see an HVAC system as a chain of components. Air Diffusers are the last link of that chain, the last component that touches the air before it reaches room occupants. It is also the cheapest and often the weakest link. Strengthen that link with EffectiV diffusers and improve the overall performance of your HVAC systems.