Picture of Cleaning and Servicing a Webasto Air Top 2000 D
I bought a used Webasto Air Top 2000 D on ebay for use in my RV project "Hal The Van". Shortly after installing the heater it started smoking badly. I decided to take it apart and clean it to see if that would fix the problem. It did. I documented the steps I took in disassembling, cleaning and reassembling this diesel fired heater. WARNING: I've never done this before nor seen it done. I've had no training on the subject so basically I have no idea what I'm doing. Copying anything I show here will probably void whatever warranty you have on a similar unit. Since the unit uses both electricity and diesel fuel there are all kinds of ways to hurt yourself if not careful.

The Webasto AirTop 2000 D is a type of electrically operated diesel fueled space heater. These are found in large trucks, RVs, construction equipment and boats. They are popular in tractor trailers because the truck's cab can be heated without having to run the engine. Depending on temperature settings a unit can run 24 hours on  less than a gallon of fuel.

There are two different German companies that have most of the market for this type of heater between them. Webasto is one and Eberspächer is the other. In this country Eberspächer markets it products under the name Espar. New units are pricey but there are usually some used ones for sale on ebay. These heaters are also available in a gasoline/petrol/benzine fueled version but since those are more popular in Europe they don't show up as often for sale on ebay. On this side of the pond the diesel fueled version is mostly used.