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HVAC

Focus on health: The fine balance of energy retrofits and IAQ

In Canada, the building sector contributes to 18 per cent of annual greenhouse gas emissions (GHG) and transforming our building stock is now a well recognized priority for meeting globally agreed upon GHG reduction targets. Building new and more energy efficient buildings will help, but renovating our existing housing stock is seen as…

Selling the benefits of new technology

I have been promoting new technologies for the building industry generally and in the mechanical realm more specifically, throughout my career. New technologies present new benefits to clients and thus new

Delivering on the promise of heat pumps

Professional contractors will recognize the importance of proper sizing to realize the full value of heat pump technology. Oddly, the challenge starts with the fact that heat pumps supply both space heating and space...

From aesthetics to performance

By Brian Paolucci The concept of protecting open doorways with an air curtain has gained traction over the last half of the 20th century and into the 21st, especially as the world became more energy conscious. Air curtains (or sometimes called air doors) consisted mainly of a rectangular metal box, motorized fan and air…

Unsophisticated test yields great results

A number of years ago, a colleague of mine and I were teaching building science in Russia to a number of contractors. The indoor air quality (IAQ) section of the training was provided by the Canada Mortgage and Housing Corporation’s (CMHC) research division. The division
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