Hottech Electric Immersion Heater for Boiler - Heating Cartridge with Uni-Schuko Plug and Temperature Controller Water Thermostat Heat Exchanger, White, 230 V, 2000 W, 6/4 Inch : Amazon.de: DIY & Tools
HERMIS TRG 11 Heating Rod Heating Cartridge with Thermostat 4.5 kW 3/400 V (4 Cable) G6/4 Heating Element for Water Reservoir Boiler Hot Water Tank Water Heating : Amazon.de: DIY & Tools