Found 8 results for the keyword(s) ‘Filters, Furnace’

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  Remove the outside air intake for the furnace when going all-electric?

  Gregory in Québec asked:   I recently replaced my oil furnace with a heat pump/electric furnace system. I live in the region of Montreal. The heat pump can heat/operate in temperatures as low as -30c. The oil furnace had an air intake duck supplying the furnace with outside (cold) air. I underst...
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  Advanced filtration systems -- portable and installed

  Many people would like to filter the air in their houses in an effort to improve indoor air quality. The most efficient of the furnace filter systems, when it is kept clean, is the electronic air cleaner. As you can see in the first photo, it is a large unit that is installed directly in the fur...
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  What are the options in furnace air filters?

  A minimum filter is designed to protect the furnace fan from large dust balls -- not to protect your health.   ONE INCH FILTERS You can start upgrading from there. One of the best of the 1 inch filters is called Filtrete from 3M. It's an electrostatic filter that becomes charged as the air pas...
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  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 ...
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  Cleaning Electronic Air Filters

  When clean, electronic air filters are the most efficient furnace filters on the market - according to research at the Canada Mortgage and Housing Corporation. When dirty, they don't filter much at all. When in-between they can give off ozone. If you're a lazy homeowner, they probably won't do m...
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  Testing and developing furnace filters

  We visited the development facilities at Cimatec Environmental Engineering in Toronto, Ontario where I actually managed to get into the middle of a 65 foot ducting test system to see just what life looks like when you happen to be a furnace filter. Emanuel Mouratidis showed us how they clean the...
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  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. ...
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  Why do furnace filters have a warranty if you are supposed to change them every month?

  Good question -- but all filters are not created equal. Some are disposable and others are cleanable. Pleated disposable filters last longer (maybe 3 months) than the cheapest of the fibreglass filters (one month). In fact the 3M Filtrete filter, the top of the 3M series of filters, is rated a...