Bosch make their heaters and market them using three different model number series. USA retail (AquaStar - $400), USA Professional Installed ($700), Canada marine rated (W125K - $650+). Bosch technical representative confirmed that all three models are the exact same unit with different labels. The warranties vary by model series and country sold. Also note water heaters sold in the USA with pilot lights are not rated for RV & Marine use. In Canada, they are allowed and warrantied for marine use. In the USA the warranty is void, unless heater is installed by a professional.
Note that ABYC requires separate solenoids for each LPG appliance.
