How to Install a Webasto Air Top 2000 STC on a VW Westfalia (replacing the old Eberspacher)

We've recently become Brand Ambassadors for the German Company 'Webasto.' We received a brand-new heating system: the Air Top 2000 STC. With the help of Rodrigo, from Old School Garage in Amoeira, Portugal, we installed the Air Top 2000 STC under our VW Westfalia van, replacing the old Eberspacher heating system)