The NIBE ERS S40-350 is a heat recovery ventilation unit with low energy consumption, a level of efficiency up to 85%, a built-in humidity sensor and a reheater.Thanks to the rotating heat exchanger, the moisture in the exhaust air is also recycled. The heat recovery ventilation unit is used in houses up to 250 m2 and can even be placed in cold spaces. NIBE ERS S40-350 is delivered in left-hand version with regard to duct connection, but can also be converted to right-hand version.The NIBE ERS S40-350 is installed together with a NIBE S series ground-source heat pump or a NIBE air/water heat pump with an S series VVM/SMO to constitute a complete heat and ventilation system. The heat recovery ventilation unit is easily controlledby the heat pump.Thanks to smart technology, the product gives you control over your energy consumption and will be a key part of your connected lifestyle. The efficient control system automatically adjusts the indoor climate for maximum comfort, and you do nature a favour at the same time.