Inquiry (采购产品): boiler exhaust already e mailed you twice, but got error messages. Sorry if this is the third one. We are installing a 60 hp boiler in our dry cleaning facility. Would your economizer by of use to utilize the exhaust gases to pre heat out wash water. thanks, tom **** Hidden Message ***** tom hardecopf IA 52406 USA Company: Citywide Cleaners E-mail: tomhcwc@yahoo.com **** Hidden Message ***** tomhcwc@yahoo.com