tech eu 21 cwu pump control circulation pump Tauchhülse The original negative pressure sensor

The original negative pressure sensor for Thermoflux Pelling pellet boilers reliably monitors the airflow in the exhaust system

Its flexible applicability in open and closed heating systems

The robust construction ensures durability and operational reliability

1 x HE solar pump

This not only ensures the safety of your heating system but also optimizes its efficiency

tech eu 21 cwu pump control circulation pump Tauchhülse The original negative pressure sensorThe TECH EU 21 CWU This is a compact controller for the automatic regulation of a circulation pump between the boiler and the storage tank or buffer tank. It operates based on temperature differences and reliably protects the system from unnecessary pump operation and frost. Highlights Advantages Differential temperature control Pump only runs when there is an actual need for heat Two temperature sensors separate recording of boiler and storage tank