Hello Together, I have a factory-side Eberspächer Airtronic M2 D4A in my crafter. Unfortunately, the warm air guide is extremely impractical for a camper. There are only two outflows under and behind the handbrake. The distribution of the warm air inside the vehicle is thus practically non-existent especially in the area under the bed in the rear. Now I think, with corresponding 60mm air hoses, to distribute the warm air more conveniently in the interior. (We are talking about approx. 4-5m hose On the Internet you can find videos of people who “make it easy” and usually distribute hose lines with turns and everything in the vehicle and comments of people who advise against it because of counterpressure… it is like always: 5 people, 10 opinions The user manual for Eberspächer is silent. In the BDA stands to Zhema counterpressure only that the heating shuts down in case of overheating… Surprise My idea would be to have a controllable pipe fan In this way, I would reduce the back pressure in the air duct to the rear and thus achieve a more even distribution of the warm air compared to the short outflow in the cab. I would turn off the warm air either directly at the sthz or under the hand brake lever. (I have to look at this in peace)1 What do you say about this? Mission Impossible or sensible approach?