Inquiry (采购产品): pool water heaters wanted a small simple self circulating self heating pool water unit that may be used without permenant installation. unit would only be used to keep pool at 76-86 degrees f. during the 7 months during winter. **** Hidden Message ***** DON J. SHRADER 2030 VINCENT ROAD ORLANDO, FL 32817 USA Company: (RTD ENGINEER) Title: HOMEOWNER E-mail: unohoo18@aol.com **** Hidden Message ***** unohoo18@aol.com