Found 56 results for the keyword(s) ‘Furnace’

  • Article

    Sealing ductwork in an attic

    Often furnace heating and air conditioning duct work is run though an attic and then back down into the house. Personally I think that this is a really bad idea unless there is absolutely no alternative route. Why? First, most duct work is not sealed where it goes through the ceiling, so a lot...
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    Should I get my ducts cleaned?

    Josie asks: "I am considering getting my ducts professionally cleaned. Can you tell me if it will reduce the dust in my home and whether there are any other benefits to having this done?"This question comes back every year, and although there is still hot debate on the subject, it appears to me ...
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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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    DOES MY FURNACE GET ENOUGH AIR?

    A combustion furnace or boiler (gas, oil, coal or wood) requires air to burn and air to maintain a proper draft in the chimney. In a leaky old house with the furnace in an open basement this is never al problem. As the house becomes better sealed, several problems can arise:-- An automatic v...
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    CAN WOOD-BURNING SYSTEMS BE MODERNIZED?

    Open fireplaces are not heating systems. They have traditionally been built on an outer wall, creating sealing problems for air barriers and wasting lots of heat through the back of the chimney. Fireplaces should always be built on the inside walls -- if you build one at all. The problem w...
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    CAN I DOWNSIZE A GAS FURNACE?

    It is harder to down-size an old gas furnace than an oil furnace, but it can be made to operate more efficiently.-- Increase the fan speed to draw more heat out of the furnace.-- Increase the "fan-on" time before and after operation to draw more heat out of the furnace.-- Install an electronic pi...
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    WON'T A COLD-AIR INLET MAKE MY HOUSEHOLD AIR TOO DRY?

    Yes -- if the cold-air input is uncontrolled. In fact, uncontrolled cold-air drafts are the reason for dryness in older houses. Damper control of the cold-air intake (not the hot-air exhaust) will allow you to maintain whatever level of humidity you want.If your furnace combustion air is provid...
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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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    The combustion air duct for my furnace freezes the basement. What to do?

    When the contractor installed a new furnace, he put in a great big air duct from outdoors right into the furnace room. This tends to freeze the basement floor. Can I close it off?Response:This duct is necessary in most modern homes and even in well sealed renovations to assure adequate air f...
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