Very aggressive sales people trying to inspect home furnaces are hitting several northern communities. The sales calls began in the Sudbury area and have made their way to West Nipissing. The sales person tells the home owner that because of building code changes their furnace has to be changed. Sudbury police say this is not the case and are warning people not to fall for it. The sales people are persistent and in one case threatened to report a homeowner to Sudbury City Hall because he wouldn’t let them in their home.