Forced air furnaces are a common Canadian heating system. Traditionally, filters placed in the circulating air ductwork were designed to protect the furnace and fans . Over the last several years, there has been increased emphasis on improving the filtration efficiency with the goal of reducing occupant exposure to respirable particulate. This research project rotated several filters through six houses in southern Ontario during the heating season.
Pocket sized summary of key energy data. Contains timely, clearly presented data on the supply, transformation and consumption of all major energy sources.
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