Our HHot exhausts mid-coach streetside and was a concern for us at first because of course there are windows all along that side. The only time we (I) gripe, it turns out though, is when the unit cranks up while I'm outside doing something in the "water bay" - the exhaust port is directly beneath my face then. I discovered that it wasn't difficult to manage window/exhaust experiences by simply being aware of wind direction and which windows we opened. Even windows right over the exhaust port could be open if the wind was blowing right, but it could be a mistake to have a roof vent fan on, a situation which could depressurize the interior enough to actually draw fumes in through side openings. On the rare occasion when fumes were directed inside, we simply shut the offending window and/or opened others.
The genset exhausts up front streetside and if winds are right that also requires window diligence. But we find modern low sulfur, low particulate diesel to be less offensive than the diesel of some years ago, and even my odor sensitive wife can stand near that side of the coach and converse with someone with rare complaint when the genset or HHot is running. If she hadn't noticed that fact we likely would've never considered trading our old gas Pace Arrow for a diesel. That said, she would be the first to scream should any siphon in an open window, so window monitoring does take some priority. Lee is actually more likely to make a stink
about the smell if I spill a little diesel during fueling or while servicing the HHot, so I've learned to be Jonny-on-the-spot cleaning up such things.
We were complained to once in a Banff Natl. Park campground around 1986 when our gas genset fumes annoyed campfire sitters behind us. I wouldn't have run the genset except I'd been having trouble keeping the batteries up all day, and it was within the proper hours to run it. Many Canadian parks, public and private, at least back then had campsites that were exceedingly tight together; some you couldn't have put an awning out without hitting your neighbor's rig, and the wind however slight was such that the fumes would've reached someone nearby regardless. That was the only time anyone ever griped, but the experience early in our RVing life made us acutely aware of not disturbing others' enjoyment and peace. A Gen-Turi back then might have mitigated things a bit, by lifting fumes over everyone's head, and at least allowed me less fretting over whether the coach would crank over the next morning.
I too have considered the Gen-Turi option for the Beaver, but so far it's simply been easier and cheaper to micromanage window and vent use. Like Bruce, I'm not crazy about punching more holes in my coach just for a device I may infrequently need to use, and is just one more thing I'll have to mount and remove at each campsite (presuming it isn't travelworthy). Nevertheless, if you like fresh air while sleeping it is probably your best option. In our case, I commonly don't leave the diesel-side HHot on at night anyway. Hot water heats quickly from lukewarm in the morning and if it's cold enough outside to dictate the floor heat to be on at night, then a window ain't likely gonna be opened anyway, and if plugged in we use electric heat.
Joel
By the way, KC, is yours a 2002 or a 2005 Monterey? Your post and your signature line are different.