A key element of Passivhaus is building mechanical ventillation with heat (energy) recovery (MVHR); providing 100% fresh air all year round, for a healthy indoor environment, with high levels (upto 90%) of heat & energy recovery. Completely balanced (equal amount fresh air in to exhaust air out) ventilation to the entire building.
This helps dramatically reduce space heating & cooling requirements, whilst providing the highest levels of comfort.
Options of night bypass cooling, heating/cooling via heat pump are available. Systems can be ducted, and centralised for whole of house operation, or ductless and decentralised for specific ventilation requirements, particularly in retrofits.
We supply and install building MVHR systems from Mitsubishi, Stiebel Eltron and Zehnder, to achieve ventilation and heat/energy recovery requirements, with minimal noise transmission.