H&V News, 18 May 2011
Ventilation: Time to adopt European ideas
H&V News looks at a 2008 study by the Fraunhofer Institut Bauphysik in Germany which shows that Demand Controlled Ventilation is a more cost-effective and reliable method of delivering the optimum indoor environment than heat recovery.
More details on the Fraunhofer 2008 study on an apartment here.
Look at the 2011 update about a house here.