|mechanical ventilation heat recovery||
Also known as heat recovery ventilation. This is a system that ventilates a building while also recovering heat from extracted air. It's typically installed as a centralised whole building solution, but decentralised systems are emerging too, including single room ductless systems. MVHR systems typically extract warm, damp air from 'wet' rooms like kitchens and bathrooms and use it to heat cool, fresh incoming air, which is then usually piped to living spaces such as living rooms and bedrooms.