Early in 1995 the Ministry of Consumer and Commercial Relations (MCCR) announced a program to replace up to 20,000 mid-efficiency gas furnaces in Ontario, because their plastic vent pipes were prone to failure, and might leak carbon monoxide into the house. Other sources indicated the number might have been as high as 40,000 - but no one knows for sure.
The crux of the problem was that no other type of vent pipe had been approved for use with mid-efficiency furnaces.
Hundreds of home owners planned to sue the government, the manufacturers and others for refusing to pay for the entire replacement. At that point, home owners were expected to pay about $1000 of the estimated $1500 cost to exchange the furnaces for high-efficiency models, which would function safely with plastic vent pipes currently available. The home builder was to pay $200, the ONHWP $200, and the gas companies $100.
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