2020 Basecamp 16X Winter Camping Question

[Psychoff]

I thought i posted this question last night, but I am not real good at the electronic stuff. Sorry if this showed up somewhere else. 2020 Truma combined furnace / water heater. Winter camping issue: Can I winterize my Basecamp 2020 16X water system and still use the Truma furnace? I have always used antifreeze and was told NOT to use the heater with Antifreeze in the system I obviously don't want to make a mistake and have a cracked plastic pipe. Any advise on using a "BLOW OUT AIR COMPRESSOR TECHNIQUE" Thx in advance, the new 2025 have split water and furnace systems and I am trying to figure this out.

[pfm41]

We had a Winnebago Era Class B (Sprinter van) with the Truma Combi. The only winterizing for the Truma is to bypass it and drain it. Winterize the rest of the water system per instructions in your manual. It can be used as a furnace without water.