Inquiry (采购产品): Air to Air Heat Exchanger Would like information on cost of the above to be installed in a Tempstar Gas Forced Air Furnace (has A/C). Furnace installed 1995. House is a rambler. House built in 1975. I know you would need more info re: model number of furnace, etc. My relative taught Heating/Refrigeration at South Central Tach in North Mankato so I am looking for the best product and price I can get. Sincerely, Mary Stenzel North Mankato, Mn **** Hidden Message ***** Mary Stenzel 193 Mary Circle North Mankato, MN 56003 USA Company: Husband taught at South Central Tech Title: Consumer E-mail: chickey60@charter.net **** Hidden Message ***** chickey60@charter.net