Survey of ventilation systems in Europe

Improving ventilation performance both for energy and IAQ creates a trend of installing moreheat recovery supply and exhaust systems in new buildings and controlling better the airflows.Many studies have shown the impact of improved ventilation system on achieved performance but information about the market status and the difficulties in installing for instance supply ducts in collective dwellings are still lacking. This studies gives the results of a survey in 6 European countries on ventilation systems installed in new and old building and gives an overview of the market of the different technologies, different of practice in different countries and how the problem of collective ducts, both for ventilation and combustion appliances, have been dealt in these countries.