52 ENERGY HOUSE 2.0 SPOTLIGHT
Wonderwall, will store solar power for use when the household’s need is greatest. The loft and the walls of The Future ome have been fitted with enhanced insulation measuring 500 mm, which has been supplied by nauf nsulation. By testing the home in extreme temperatures, we will learn what impact the insulation has on retaining heat inside the home and how it might help prevent excess heat from entering the property. Resideo has installed its Honeywell Home evohome smart thermostat in the test property, which has nine rooms in total, radiators and three underfloor heating zones. The innovative system was selected for its smart zoning technology, which uses radiator controllers to wirelessly measure and control temperatures for up to 12 individual zones within the house.
NOT ONLY WAS IT A CHALLENGE TO INCORPORATE MULTIPLE HEATING SYSTEMS, BUT THERE REMAINS THE ADDED COMPLEXITY OF FULLY UNDERSTANDING HOW TO CHANGE FROM ONE SOLUTION TO ANOTHER
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he underfloor heating has been supplied by WMS and the infrared wall- mounted heating panels by Ambion Heating. The innovative heating system has a constant dynamic pulsing, rather than the traditional on/off approach used by other systems. This process dramatically reduces energy usage and maintains a room’s temperature to within 0.1°C of its target, 24 hours a day. The data we gain from Energy House . will enable us to find out how everyone can operate their homes more efficiently and comfortably, and how new technologies can assist our efforts in reducing carbon emissions by building more efficient homes.
TACKLING HEATING CHALLENGES Since testing began on the project, there have of course been some challenges. The Bellway Future Home contains multiple electrical space heating options which
will enable us to make comparisons of the energy use across the solutions in a controlled environment. Not only was it a challenge to incorporate multiple heating systems into the build, but there was, and remains, also the added complexity of fully understanding how to change from one solution to another. For instance, knowing the best way to reconfigure from underfloor heating to radiators. The Future Home also includes multiple energy saving and ventilation systems where similar challenges apply. n the first round of testing, a whole series of measurements are being taken. mong these are the identification of how much heat is lost throughout the house by the use of thermal cameras, and the monitoring of airflow leakage from the building via blower door and a pulse test for comparison. This initial testing allows us to contrast theoretical design numbers and those measured as built – with initial testing based around identifying any potential performance gap between as designed and as built.
The products used in the construction
of, and the daily running of, The Future Home are being tested as thoroughly and holistically as possible. We are measuring not only performance under a number of different conditions but are also keeping track of running costs across the varying scenarios and evaluating the user- friendliness of the technology, and the upfront cost of the products. nitial results from the first round of testing are due to be released in the near future. The results of this project have the potential to change how we build homes – and how we live in them.
Jamie Bursnell is Bellway Group’s technical and innovations manager
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