"Ivylog, those 8 dollar dent removers (suction cups with release handle), sure are handy"... Actually you can catch them on sale for $4 at Harbor Freight. I have found on glass they will stay put for days and days, but on my paint (I sometimes up it on my AquaHot) two days max. I have a 90 degree sweep that I can put on it and just directing the hot air up is usually enough if the wind is not blowing hard.
I also carry a 90 degree metal sweep that will go on most gen exhausts and if I have a neighbor too close blowing my way I'll suggest he put it on his exhaust, sometimes turn forward, not up... depending on the wind.
The Monaco group I'm going in with next week requires you have some type of exhaust system and they suggest the 4" alum dryer vent pipe as a cheap alternative to a Genturi.
Esthetics and vanity do not rate very high with me either.