You're inspiring me.... Maybe I better give it a go. Especially since the really extreme heat isn't much of a factor at the moment around here.
From my TT days, we always worried about weight and didn't fill any water until we got where we were going. How much is water weight a factor with a class B? I could easily fill up at home before my trip of 3 hours if I don't have to worry about weight. Thanks.
For a 3 hour trip I wouldn't worry about the weight of a tank of water... less than a typical adult passenger. But for dry camping, I'd suggest you do need to be concerned about the condition of your house battery. Unless it's pretty new, take it to a big-box auto parts store (Advance Auto, NAPA, etc) and get it tested.
Buy a cheap mulimeter (aka volt-ohm meter, or VOM)and learn to use the DC voltage scale. Google for and start studying the excellent website "The 12 Volt Side of Life." The panel lights for battery condition are next to useless.
A 3'x3' scrap of carpet under the generator may help the noise a bit when you're parked on pavement, _if_ the Excel's Onan is mounted high enough that it won't be a fire hazard. A lot of the noise comes out the bottom. Do a search of the B forum for threads on adding the Onan resonator.
Jim, "No, you misunderstood. The 'get well' card _is_ your company's health insurance policy."
'06 Tiger CX 'C Minus' on a Silverado 2500HD 4x4, 8.1 & Allison (aka 'Loafer's Glory') www.tigervehicles.com
Got trailer brakes? But since this is your 1st trip, maybe take maybe 5 gallons for flushing & emergencies in the tank. Carry a few gallons in jugs for drinking & coffee. Fill when you arrive, assuming they have potable water spigots. Or try gas stations and rest areas close to where you're going. See how it handles the trailer.
Jim, "Laughing stock: cattle with a sense of humor."