Case Study – Knights Place in Exeter
Built to the highest level of energy efficient construction, with MVHR from Zehnder Group UK, Knights Place in Exeter has set new PassiveHaus design standards within the social housing sector.
Knights Place PassiveHaus housing is a sustainable social housing development of 18 one and two-bedroom apartments, designed by Gale & Snowden Architects for Exeter City Council.
Built with meticulous attention to detail, the two blocks have been designed to strict PassiveHaus standards, which deliver high comfort levels for residents via a mechanical ventilation system with heat recovery (MVHR). This produces consistent and uniform internal temperatures and excellent air quality whilst minimising energy use for heating and cooling, resulting in significantly reduced energy bills. Knights Place is amongst the first multi-residential, certified PassiveHaus houses in the UK.
With MVHR an integral feature of all PassiveHaus developments, it was essential that a highly efficient, quality MVHR system was specified for Knight’s Place, enabling the buildings to meet stringent energy performance criteria. Offering excellent rewards in Standard Assessment Procedure (SAP) through the Dwelling Emission Rates calculation, Zehnder’s ComfoAir 200 whole house heat recovery system was specified for each apartment. Guaranteeing the provision of optimum quality indoor air all year round, the CA200 recovers heat from the warm air extracted from kitchens and bathrooms and transfers it to the fresh incoming air supplied to living rooms and bedrooms. The CA200 system provides both the ventilation and heating needs at Knights Place – no other heating system is required. As the heat loss in each flat is so minimal, this is met during winter extremes via a small air heater in the supply air duct just after the heat exchanger.