Found 15 results for the keyword ‘Damper’

  • Stopping cold air drafts from ducts to the outdoors.

    I get a lot of complaints about cold air drafts coming in through ducts connected to the outdoors. Here are some solutions.  Butterfly dampers Any exhaust vent that rises up and out will have a tendency to let cold air fall back down that duct. Quality butterfly dampers are available that have ...
  • Problems with two apartments sharing one heating source

    When two apartments share the same heat source and only have one thermometer, someone is always unhappy. If the thermostat is upstairs, the downstairs people are too cold, and if the thermostat is downstairs, the upsatirs people have to open the windows, to keep from getting cooked although thos...
  • How to stop noisy exhaust fan dampers.

    Gerry has a bathroom exhaust fan damper that keeps him awake at night.Well, Gerry, we can't always stop it, but we certainly can tone it down.The first and cheapest step is to get some of that soft foam self adhesive weather-stripping tape. Tape it to the exhaust hood where the flapper hits. Th...
  • WHAT IS OIL DOWNSIZING?

    One morning the oil furnace and boiler companies woke up to discover they were the Canadian bad guys -- everybody was condemning oil burning heating and the government was even paying people to scrap them. The oil furnace and boiler companies had to admit that they had been pretty contented and l...
  • 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 ...
  • The fireplace stinks a sooty smell.

    Brenda from Port Hardy, B.C. says that her wood burning insert smells of soot when it is not in use.The problem is obviously one of air coming down the chimney. Either the exhaust fans in the house are drawing air when there is no fire to maintain an upward draft, or the wind is twisted around on...
  • How to properly duct an exhaust fan through a roof

    This item falls under the heading of 'things that homeowners can teach their contractor'. Unfortunately too many renovators do not know that you can cause serious damage to your roof if you don't duct exhaust fans completely out of an attic. Some know, but just don't care. You cannot just leave ...
  • Does your contractor know about the furnace room combustion air damper?

    Many years ago, because of the prairie enforcement of the gas code provision that you had to supply fresh air to a furnace, an inventor in Alberta began marketing the Hoyme damper. This is a motorized damper that closes off that combustion air duct from the outdoors that dumps cold air into ...
  • Should cold air returns be on the ceiling or on the floor?

    Pham from Hamilton asked why he sees air returns on the ceiling sometimes and on the floor in other houses, and what effect this placement has on air quality in the house.If you are in the far north, or in the Southern US, the answer is simple. In an air conditioning climate the return duct goes...
  • How to close off a chimney temporarily

    Jacqueline from Red Deer Alberta is trying to figure out how to close up her chimney between periods of using the fireplace, given that her damper is burned out and very difficult to replace. Closing off the top of the chimney There are dampers that go on the top of the chimney and are pulled t...