Selbermacher-1
2013-02-19 19:05:41
- #1
In a German daily newspaper, I read an interesting report about mechanical ventilation systems. According to it, 90% of all single-family house ventilation systems malfunction and cause excessive costs. Operating costs and maintenance are often more expensive than assumed, and the energy-saving effect is questionable.
We ourselves do not have a ventilation system; we still ventilate manually, which works well; how about the forum users, have you had problems with your system, are the costs within the planned range?
We ourselves do not have a ventilation system; we still ventilate manually, which works well; how about the forum users, have you had problems with your system, are the costs within the planned range?