Cotherm – Replacement Unvented Water Heater Immersion Element ELE-14-IN-800-UNV. Includes: 14″ 1-3/4″ Boss Incoloy Heating Element Cotherm T115 11″ TSE Plug in Thermostat Compatible with: Kingspan (Range) Tribune, Albion Unvented, RM Stelflow & Joule, Telford Tempest and Grant