The Vent-Axia Sentinel Kinetic 200Z, 200ZH, 300Z, 300ZH Mechanical Ventilation / Heat Recovery (MVHR) is a heat recovery unit designed for the energy efficient ventilation of houses and similar dwellings, conforming to the latest requirements of the Building Regulations document F 2010. The unit is designed for continuous 24 hour exhaust ventilation of stale moist air from bathrooms, toilets and kitchens. As the stale air is extracted a heat exchanger within the unit transfers the heat into the supply air entering the bedrooms and lounge.