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Found 42 results for the keyword ‘Air Quality’

  • 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...
  • WHICH DEHUMIDIFIER IS BEST?

    The only type of dehumidifier that is any good at all during the winter is a fresh air ventilation system. Mechanical and chemical dehumidifiers are not only expensive and bothersome, but they cannot generally reduce the relative humidity to less than 50 per cent -- not low enough to keep frost ...
  • Trained Indoor Air Quality Investigators

    As indoor air quality (IAQ) has been identified as a more and more important issue in our homes, the Canada Mortgage and Housing Corporation  had  instituted a training program to train individuals/companies who are qualified to come into your home, identify IAQ problems and outline the solutions...
  • The best of breathing protection

    The first photo shows a respirator. If you have ever used a respirator you will really love this new one. It has a quick latch release that allows you to drop it down off of your face without loosing any of the adjustments of the straps on your head, and quick latch it right back. When using...
  • Just how do you install a central vac through old walls?

    Most portable vacuum cleaners have fairly poor filters. Sure most of the real "dirt" gets caught in the bag, but much of the very fine stuff just blows out the back end. A central vac has the same problem, but because it is placed in one place, it can have a much stronger motor to allow it to d...
  • 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...
  • Radiant Heating Systems for Homes

    Radiant Heating and Convection Heating are the two primary types of ways we heat our houses. FORCED AIR HEATINGConvection heating means moving hot air -- what we usually call a forced air heating system simply heats air and moves it around the house through a system of fans and ducts.  Forced air...
  • HRV ventilation system maintenance.

    The National Building Code of Canada, the basis for most building codes in the country, requires mechanical ventilation in all new housing because it is now recognised that our modern energy efficient homes must have the possibility of good through ventilation beyond opening windows.There are man...
  • 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...
  • UV lamp for a furnace

    Few furnace filters, except expensive HEPA filters, do much about trapping or killing germs. Electronic air filters will reduce somewhat the air born germ count because the high electrical voltages do kill some of the bacteria passing through them and probably all that is caught on the plates. ...