We just bought our 2021 Reflection 28BH Fifth wheel this year. Previously we had a bumper pull. This is my first year winterizing our Fifth Wheel. Reading the manuals it states that the Furrion 2.4 GPM Tankless Gas Water Heater can have the RV antifreeze run directly through the unit to winterize it. For the winterizing process the manual for the fifth wheel states to put the hot water bypass on that is on the Nautilis P1 system. If I want the antifreeze to run through the Furrion Tankless Water Heater do I just not turn the hot water bypass red lever on in the Nautilis system and put all the other knobs to the winterize mode? I know it says to run compressed air through the system also but I just want to know about the antifreeze. Thanks in advance and safe travels everyone