Clean Storm Volcano 2000 In Line Water 2000 Watt Heater Dual Core Dual Chamber Heater with Wrap 240 volts part 10-0910-2-2-230 Repair your heater if you let it freeze or used more than 500psi you might have broken a weld. This heater core was used in the original Mytee 2000 watt hot box heater, Sandia Plastics, and is used in the Clean Storm 1750 watt and 2000 watt heaters. 8.5" X4.25" Questions and answers about this heater are located at http://www.steam-bright.net/showthread.php?p=3202#post3202