If your Air circulation unit requires repair or service please contact the smart call team for help and advise a, we can supply and install new filters, fault diagnose and repair.


The MRXBOXAB-ECO2 and the MRXBOX-ECO2 are designed to provide optimised balanced (supply and extract) mechanical ventilation with heat recovery. The units operate by continuously extracting moisture-laden air from ‘wet’ rooms within the property and at the same time drawing in fresh supply air from outside. The heat from the extracted stale air is recovered via a heat exchanger inside the heat recovery unit which becomes tempered then filtered before supplying into the habitable rooms, creating comfortable and well ventilated homes. The heat exchanger block within these units can recover up to 95% of the normally wasted heat.