... 2,Fast heat response 3,Various sizes Electric Flange Immersion Tube Heater Hongtai flange heaters, both round flange and square flange ... heating requirements of water, air and other gases. Flanged immersion heaters are very efficient since all energy that is ... Easy to install, control and maintain2,For many applications: water, oil, heat transfer fluid, and corrosive solutions, Gas, Steam3,High ...