Pay in 4 interest-free payments of $19.62 Learn more
Ships within 48 hours · Estimated delivery Sep 13 - Sep 18
Thanks to this extensive accessory package
easy and quick installation
falls Probleme auftreten sollten
Original Abgassensor DEFRO für Heizkessel
An additional advantage: The pump does not require separate motor protection because it is short-circuit proof
TECH EU-21 CWU Pumpensteuerung Umwälzpumpe Kessel Boiler Sensor Thanks to this extensive accessoryThe TECH EU 21 CWU is a compact controller for automatic regulation of a circulation pump between the boiler and the hot water tank or buffer tank. It operates based on temperature difference and reliably protects the system from unnecessary pump operation and frost. Highlights Benefits Differential temperature control Pump runs only when there is actual heat demand Two temperature sensors Separate detection of boiler and tank buffer temperature Frost