Thanks all for the advice and well wishes. We broke it in over the weekend, and the only slight mishap was that the fresh water hose froze in the evening. I had a spare hose, and we were able to get to Walmart and picked up some pipe wrap, got the hose wrapped, and has been working fine since. My DW is staying in it for a couple of weeks while she is doing some temporary full-time duty with her Air National Guard unit. The heater works great, thank goodness, as it has been in the teens to low 20s at night in Klamath Falls, OR.
Thanks again everyone!
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Rick & Stephanie
2019 Toyota Tundra Crewmax TRD Sport
2018 Salem Cruise Lite 241QBXL
Whenever I feel blue, I start breathing again.