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UK Passivhaus Conference

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Chris Parsons

on 23 October 2013

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Transcript of UK Passivhaus Conference

Chris Parsons

COMBI 185 - Summary

The Combi 185 appliance has a 95% efficient counter-flow heat exchanger, which combines the advantages of the very best heat recovery ventilation, with heat pump technology.

This appliance offers priority switching to heat the water first in the integrated storage cylinder which holds 185 litres. It can be fitted with a bare tube heat exchanger for use with solar heating or a wood-burning boiler for hot water.

Maximum air flow is normally 260m³/h and living areas up to 220m² can be ventilated with simultaneous heating.
Windmill Green - Constructed post war
1998 Listed Grade II
2009 HDA Historic Winner
The scheme was praised by the Local Planning Authority for its contemporary interpretation of 1950's design features whilst respecting the setting of the adjacent Listed Grade II buildings.

Included as a Case Study in the recently-published South Norfolk Place-Making Guide, the new development is said to 'respond positively to the site context and builds on the distinctive character of the Tayler & Green scheme including the curved terrace along with the overall scale and form. The high level of detailing to the elevations reflects the existing character and views of the existing terrace are maintained with the open green space enhancing the setting'.
UK Passivhaus Conference 2013 New Build Projects
Primary Energy
Annualised figure for total energy use
Underlines behavioural differences
Genvex provides both DHW and Heating
Average 80.63 kWh/m2/a

Space Heating
14 units but certified as one block
9 of the 14 units monitored
Averaging around 16.2 kWh/m2/a
Significant behavioural difference between identical properties.

Measured Energy Performance

11th – 23rd Jan 2013
Internal Environment

Good at between 404 and 829 ppm

22.8 deg

Averaging around 55%

Internal Environment



Ditchingham challenges:

Not Passivhaus from start

Tayler & Green
Adjacent Listed Buildings
Conservation Area

Windmill Green:
Agnes Hood Terrace:
Windmill Green
External Air Temp:
Average 2.2 deg.
Internal Air Temp:
Average 21.9 deg.
Hatfield Heath:
Hatfield Heath:
Hatfield Heath:
Burnham Overy Staithe:
A few other projects
Wimbish Update
Ditchingham Case Study
Wimbish, Essex
TSB funded monitoring coming to a close
Still performing very well.
Passivhaus can be delivered
in a wide range of idioms
and planning sensitive areas
Full transcript