Found 46 results for the keyword(s) ‘Air Quality’

• Article

  CONFLICT: A MAJOR PUBLICATION SAYS NOT TO RUN AN OUTSIDE FRESH-AIR INTAKE INTO THE COLD-AIR RETURN ON THE FURNACE DUCTING.

  "Energy Efficient Housing -- A Prairie Approach" is the only book I know of which advises against this practice (check out the graphic, keyword "ventilation", title "WHAT IS A CONTROLLED COLD-AIR INLET?"), so I asked the Saskatoon Research Council why. They are not against the practice in genera...
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  WHAT IS A CONTROLLED COLD-AIR INLET?

  Stale, humid air must be exhausted from the house, both to allow for fresh air and to maintain a high neutral plane. For this reason we need a planned-hole-high-in-the-house, but the air going out must come into the house from somewhere. If you carefully seal all the leaks in the house to m...
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  Overview: To HRV-ERV or not to HRV-ERV

  I am always amazed at house construction where so often things are half built or more while people are running around beginning to think about "extras" that should never be though of as "extras" but as part of the essential system. So time for one of my lectures -- (you asked for it).Heating is o...
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  HRV - both supply and exhaust ducted to furnace. Is this a good idea?

  I have occasionally been asked my opinion about a particular way to install a ventilation system (HRV - Heat Recovery Ventilator) that is considered acceptable in Ontario: Ducting both the supply and the exhaust runs of an HRV into the return air plenum of a forced air furnace. To understand t...
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  Indoor Air Quality

  Exhaust fans are the minimum necessary in houses for taking out stale air. You may have a fan, but it may not be working. It could be clogged up, improperly installed or simply too noisy for anyone to turn it on. Quiet fans, with good controls are a must in our energy efficient and often stuff...
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  Special Report: Mould in your house

  Mould will form anywhere you have moisture for a long period of time at a warm temperature. Some moulds grow and feed on organic materials including drywall paper, wall paper glue and of course wood. Other moulds simply grow on the surface, which means that moulds can grow wherever they can...