The first self-heating house has been built in West Harbour in Malmö, close to Turning Torso. It is located next to another conventional housing estate. The difference is an installation on the roof where fresh air is brought inside and heated by the exhaust air through a heat exchanger. The air then heats up all the apartments, which therefore do not need any radiators.
The self-heating energy house has about 40-50% lower energy consumption than national average demand requirements (BBR). Carbon dioxide emissions are expected to be approximately 30-35% lower.
Air-heating could be more common in the future
“It will be very exciting to follow the measurements in this house in the future” says Jasenka Hot. Careful comparisons will be made with the houses next door. I am confident that it will work well and that air-heating is a system, which will become more common.
It requires a high air-tightness of the outer shell, little or no thermal bridges, draft-free air-injection of supply air in living area with normal air flow. Energy-efficient appliances and individual metering of hot water is a part of this system. Each apartment has its own after heating battery, connected to district heating, which means that heat can be regulated locally.
Egenvärmehus in Hammarby seaport
Another project with egenvärmehus is being undertaken now in the Hammarby seaport in the southern parts of Stockholm. This has helped to improve heat
recovery efficiency further through air handling units. Energy use is estimated to be about 55 kWh per square meter meeting the requirements "minienergyhouse".
Jasenka Hot, together with Goran Werner, participated in the development of self-heating houses during the nearly two years. It's amazing development and fun to take a part and develop a sustainable building with minimal impact on the
climate, she says.
For more information, contact:
Jasenka Hot, 08-688 62 03, jasenka.hot @ wspgroup.se
or Goran Werner, 08-688 61 94, goran.werner @ wspgroup.se