Your theory is probably correct, Mike. But what you (and Pacific Shores) must take into account is that the electric side usually won't keep up with the higher hot water demand situations, like showers. The diesel is far more efficient in that regard. As long as both sides are on though, the diesel burn will be as limited as possible.
If a neighbor is relaxing on their patio opposite your hydronics exhaust pipe, or has their windows open on that side on a calm day, probably then you have a chance of incurring someone's wrath enough that they'd speak up. The rule might only be enforced, like a development's CC&R's, if and when someone actually was miffed enough to file a complaint.
As we first began motorhoming, we were spoken to in a Canadian federal park when our old Pace Arrow's gasoline genset's noise and fumes bothered tenters enjoying a nearby fire ring. That woke me up to such things bothering neighbors, so I've since tried to be extra cognizant of the genset and hydronic exhaust relative to nearby fellow campers and wind conditions, etc. Unfortunately both those systems port on the streetside, which commonly has someone's patio/picnic table area proximal to it.
Additionally, my wife is unusually sensitive to such exhaust fumes and even has trouble enjoying a campfire anymore, much to my chagrin, so it behooves me to take a lot of things into consideration before "lighting up" anything, or even where we park the coach overnight relative to others' firepits. Even with windows closed, you may already have realized the slideout seals on our rigs aren't exactly airtight, and fumes and bugs get in regardless.
At least the wind at Pacific Shores should work to your advantage.
Joel
