Reliable wall box with custom cross-sections

For the installation of surface-mounted version, some precision was required as a 6 cm thick rock wool insulation the house is available. Therefore, the longer screws to mount the base plate had to be positioned with some feeling and tightened.

The 150 mm plastic exhaust pipe I - can survive about 3 cm from the plaster, so that any condensation accumulating not running down the same on plaster - in coordination with Mr. Weibel.
Before mounting the box, the rubber parts have been provided with a rubber care products to go condensation problems in winter out of the way.

Extremely helpful tips from Mr. Weibel telephone. It really explains the relationships with the eyes of an engineer. He could answer very factual and expertly my every question the mounting questions. If you still look at the successful and thoughtful in every detail construction of the wall box, one can speak of real engineering work. I've rarely seen that the chief designer of the small customers patiently answered questions of the best way to attract new prospects.

Wall box and exhaust hood do their job so far at about 5 inserts per week without complaint and very quiet.