By Sabine Lobnig, Jan 11, 2012, 14:13 • 2 minute reading
More than 28% of the building permits awarded for the construction of new residential buildings in the first three quarters of 2011 foresaw a heat pump as the main heating supplier in North Rhine-Westphalia, according to the statistical office of Germany’s most populous state.
Jan 11, 2012, 14:13
Jan 11, 2012, 14:13
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