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Found 83 results for the keyword(s) ‘Exhaust Fans’

• Article

  How do I properly vent a range hood?

  Vern has a range hood on an inside wall and is wondering if he could just use the hollow wall cavity or should he line it, and could he just vent into the attic because the attic itself is vented. There are actually a lot of interesting questions there Vern. First remember that there is a lot of...
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  Proper installation of new whole house ventilation systems

  Joan from Armstrong, BC is having trouble adjusting the ventilation system in her new home to keep condensation off the windows. She told us the kind of system she has and said that it was required by the building code. Actually no specific system is required by any of the building codes. ...
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  SHOULD CLOTHES DRYERS VENT INDOORS OR OUTDOORS?

  Clothes dryers should vent outdoors.However, clothes dryers do make excellent humidifiers and if you really want a ton of water vapour in the laundry room you could very well vent yours indoors.Special lint traps and by-pass valves exist to aid you in venting a clothes dryer indoors in the win...
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  DO I NEED AN EXHAUST FAN IN THE BATHROOM?

  Yes. If your house is well sealed the bathroom will create too much humidity, and an exhaust fan will get rid of the tremendous moisture produced by a shower quickly, before it spreads through the house. This excess load function of the exhaust fan will work even if the bathroom exhaust ducting...
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  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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  HOW DO I GET MY PLANNED-HOLE-HIGH-IN-THE-HOUSE?

  The best household ventilation system is a constant operation fan powered balanced air-change system -- a central system that sucks stale air out an exhaust duct and blows an almost equal amount of fresh air into the house through an intake duct. These systems will usually require a heater o...
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  WON'T A VENT HOLE WITH NO DAMPER COST ME A LOT IN HEATING DOLLARS?

  Yes, a vent hole without a damper will cost you heating dollars. Generally they should be closed with dampers. However, if the vent hole is not an uncontrolled leak but a planned part of the system necessary to create a high neutral plane, then a damper should not be used. It will cost you muc...
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  WHAT IS A PLANNED-HOLE-HIGH-IN-THE-HOUSE? 2

  Answer Two Any power exhaust ventilator taking its air from inside the house (bathroom fans, kitchen fans, clothes dryers, central all-house exhaust fans) will raise the neutral plane whatever the location of its input or output -- although they will be more effective if they draw air from high i...
• Article

  WHAT IS A PLANNED-HOLE-HIGH-IN-THE-HOUSE? 1

  Answer One "Planned-holes-high-in-the-house" are part of buiilding science considerations as to how air moves in buildings creating pressure differences that can help to keep houses dry and mold free or can help to trap pollutants in the house or even in the walls.A planned-hole-high-in-the-house...