Aquahot Hour Meter Modification Posted on December 1, 2017 by RobApril 1, 2018 Note: This mod was performed on a 2017 model Aquahot 400D, however it will also work with the 450D and most other models with a Webasto burner. The Aquahot model 400D in our 2017 Entegra Aspire provides both heat and … Continue Reading…