WEBASTO CAB HEATERS - AIR . Lucasaide.com offer a wide range of Webasto Cab Air Heaters. Our range covers from 2kw up to 9kw and modular systems up to 22kw. The range offers variable applications for interior cab and heating. The Webasto Air Heaters are low consumption of fuel and power and 12v or 24v - Petrol or Diesel. Webasto supply a complete range of fittings , ducting and vents to suit any application. Manufactures 2 year warranty.