Webasto Air Heater Correct CO2 Adjustment Procedure

A video overview of adjusting the Air Fuel Ratio of a Webasto Air Top 2000 STC for proper high altitude operation. Measuring CO2 content is crucial to proper combustion at higher elevations when working with Webasto Air Heaters. This procedure is per the Webasto service manual for the AT2000STC heater and current as of this publishing.