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Found 62 results for the keyword ‘Duct’

  • WHAT IS AN AIR-TO-AIR HEAT EXCHANGER, HRV and ERV?

    Air-change ventilation systems exist that take stale air out and bring fresh air in so as to not rely on cold air drafts for the entry of fresh air to the house. They are simply a box with two fans. In a few of the warm spots of Canada these are legitimate systems on their own. In most of Canada ...
  • Silencing a strange buckling noise in the floor.

    Bruce from Chatham, Ontario had a peculiar noise problem with his floor. His heating ducts were made by simply nailing sheet metal to the floor joists, and every time he walked on the floor the sheet metal would ripple, sending rock-music-like sounds throughout the house. He solved the problem b...
  • Improving a wood chimney to stop backdrafting

      Rick from New Brunswick is having problems with his wood stove backdrafting and he wants to know if it will help to box in the chimney on the outside of the house. Backdrafting or difficult starting with wood burning appliances is often a problem and there are several entries in this database ...
  • How do you prevent condensation in an exhaust duct?

    I hate to put exhaust ducts through roofs, because there will always be some condensation that could drip back inside. I would much rather go through a side wall, or down and out the side of the basement. But if you must go up and through the roof... Don't allow your ducting to have any loops in...
  • Soap and static sheets could destroy your clothes dryer.

    It's all about maintenance and one of our viewers had half of a very interesting story. Burnice writes: "I had a wonderful morning, the heating unit went out of my dryer! Why does everything seem to fall apart this time of year!??? The guy that fixes things went in to the dryer and pulled out t...
  • WHERE SHOULD I SEAL AND HOW?

    The smoke test described in the previous answer should be used to verify the presence of typical leaks and discover those peculiar to your own house. Before sealing, read the section on Ventilation to avoid any future condensation problems. The leaks high in the house are not necessarily the lar...
  • CONFUSION: SHOULD VENT DUCTS GO THROUGH THE CEILING?

    Many government or crown corporation publications are afraid to ask too much of homeowners both in terms of work and comprehension. They prefer that homeowners do things half-way rather than not at all. When compromises seem to work some of the time, these publications (and many contractors) are ...
  • Where should basement furnace ducts be placed?

    Doug from Manilla, Ontario checked this site for basement heating systems: "I read the section? on cold air returns in the basement, however I could not find anything on where hot air vents should be placed. Do they need to be at the floor level or at the ceiling level?" In the house above the f...
  • How to move heat from a stove to other rooms.

    Jon in Winchester, Ontario has a free standing natural gas stove and wants to get that heat distributed to the rest of the house.  First, what not to do Do not try to put a grill in a return air duct of a forced air heating system over the stove as you see in the photo, especially forbidden fo...
  • Pro: Getting Ventilation Ductwork to Work

    Bathroom and kitchen fans are rated to move a certain volume of air, but do they actually move what they say they move? A study done in 1990 by CMHC says "rarely". In fact, on the average, measured volumes were 44% of rated flow for bathroom fans and 38% of rated flow for kitchen fans. The primar...