... and reliable; 5.long life. I.Description:1.Flange heater is welded or screwed to a flange mounted to form ... the temperature probe, made of the temperature controlled The overall heater. to prevent dry, effectively extending the service life.3.There ... , 30KW and so on.5.Mainjly for electric water boilers, electric boilers, solar systems, solar water tanks, chemical tanks, bathing pool, heated swimming ...