Airflow helps deliver UK's largest Passive House scheme


30 August 2017
Airflow Developments has helped deliver the UK’s largest Passive House development in Leicester.

The Heathcott Road social housing project comprises 68 new dwellings, all benefitting from a Mechanical Ventilation with Heat Recovery (MVHR) unit, including DV96 Adroit from Airflow.

Passive House certified buildings are required to provide a high level of occupant comfort while using minimal energy for heating and cooling.
“We’re proud to have been involved with the UK’s largest Passive House development,” said Robert Dennis, product marketing executive at Airflow. “With all buildings now fully occupied and Passive House approved, we believe Heathcott Road represents an example of what all future housing developments both private and social should aspire to be.”

Heathcott Road is a 13.2 acre affordable housing scheme in Leicester. The former derelict allotment was sold by Leicester City Council for a nominal fee of £1 to emh homes, on the basis that the housebuilder and appointed property developer, Westleigh, provide affordable living to the area. The development predominantly consists of semi-detached houses, four one-bedroom flats and two bungalows.

Low energy
To achieve Passive House certification and meet airtightness criteria, each dwelling at Heathcott Road could not exceed 0.6 m3/hr/m2 air changes per hour at 50 Pascals pressure (ACH50). In fact, many of the dwellings were air tight to an exceptional infiltration level of just 0.2 m3/hr/m2 air changes per hour at 50 Pascals pressure (ACH50). As such, the DV96 Adroit MVHR units were specified to prevent the build-up of indoor air pollutants that can prove to be harmful to human health and the building fabric. 

The Passive House certified DV96 Adroit recovers valuable heat that would typically be lost as part of the ventilation process and uses this energy to pre-warm fresh, filtered air that is constantly brought in from outside and circulated within the home. This process helps to maintain the property’s temperature and reduces energy consumption.

Adroit MVHR units incorporate low energy EC fans, a unique triple filter system that prevents airborne pollutants as small as carbon from entering the property, frost protection, an automatic 100% summer bypass facility and also feature an intelligent inbuilt temperature and humidity sensor.
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