Had a company come out to check on our heater today. Guy got here and said are insulation was contaminated, and it would cost $500.00 to just put a cover on our heater is we couldn't afford to change the installation. I told him we didn't have that kind of money. So he said he couldn't clean the ducts because it wouldn't do any good. After he left I thought that was strange. He left a card but checking for the web site there wasn't any. The company name in Indoor Air Quality. Phone number 877 6595923. After he left I begun to wonder was he just casing our house or was he legit? He was driving a white van. Did anyone else know anything about this company?