Vent-Axia dMVHR Series Single Room Heat Recovery Unit is designed for use in domestic kitchens and utility rooms to meet the Building Regulations. The unit is also suitable for light commercial requirements up to 220m3/h (50l/s). The compact, self contained unit is designed for through wall mounting. The three speed, external rotor motor has two matched impellers to ensure a controlled airflow through the unit, with exceptionally economical 25Watt low speed power consumption. The HR200WK fits through walls up to 335mm thick requiring a fixing hole 250mm square. The internal grille has washable, polymeric foam supply and extract filters. Only the neat internal twin grille is visible from the room. A wall extension sleeve is available for walls up to 550mm thick.