I have a 15K in the back and a 13.5K in the bedroom. My 13.5K was out of service for a few days last week and what a difference it made when it wasn't working. All is better now after a new base gasket and condensation going outside where it is supposed to go.
2006 GMC 2500HD CCSB 4x4 Duramax/Allison, Titan 52 gallon fuel tank, Prodigy Controller, B&W Companion Hitch
2010 Jayco Designer 35RLTS, Cummins/Onan RV QG 5500 EVAP, Progressive Industries EMS-PT50C, TST Systems 507 TPMS, RV Flex Armor Roof