Gen-Turi routed past window?

Yeah ... I realized right after I posted that you were asking relative to RV parking/camping in packed-in situations at dog events.

We use the method I described for our travels in hot weather when parked or camping without others around us. (I came close to buying a Gen-Turi once but decided against it for a couple of reasons.)

Many of the events I attend require venting of exhaust fumes at or above roof level, because of the number/proximity of rigs. No one wants someone's generator exhaust spewing out right next their set-up. Otherwise, your method of using the fan roof vent sounds like a good one.

When we run our generator for air conditioning whenever in the motorhome or whenever gone from the motorhome with the dog left inside, we close up everything except the one roof vent with a reversible 3-speed vent fan in it. We leave this fan set to AIR IN and on it's lowest speed setting. This creates and maintains a small amount of air pressure inside the RV.

This small amount of air pressure keeps any generator fumes from entering the RV anywhere. Since the stock generator exhaust position as installed by Winnebago is way down low, the vent way up on the top of the roof does not pick up any generator fumes while it's maintaining air pressure inside. The cooled air inside the RV always smells fresh and fume-free using this method and no Gen-Turi is required.

In fact, if one's RV air conditioner was to ever have an air circulation "leak" such that some outside air inadvertently got mixed in with the air it circulates in the RV's interior, having a Gen-Turi exhausting up near the top of the RV could in fact cause fumes to wind up inside the RV whenever the air conditioner was running.

I made my own Genturi and have used it several times at concerts. Even after running for an hour or two it is not hot. Barely warmer than the side of the MH.

If it was hot it wasn't a genturi!!! I've seen folks just extend the generator exhaust with plastic pipe. Once I saw that type extension on a bus conversion -- several hours later there was a pile of melted pipe on the ground.

For the genturi to work the smaller exhaust pipe has to be surrounded with a 3-4" plastic pipe centered on it. As the hot exhaust rises it pulls cooler ambient air into the pipe and if working properly the combined air will be cool enough that the plastic pipe is barely warm at about 4 feet up. I made my own 15 years ago for about $10.

Parts list: 90 degree metal electrical conduit of proper inside diameter to fit the generator exhaust.
1 10foot 3" lightweight drain pipe (may need two)
2 4" small diameter bolts

drill a hole in the metal conduit for one of the bolts at the point where the bend ends and a second hole 90 degrees off near the end so the bolts form a cross. Matching holes in the drain pipe complete the construction. I cut my pipe into two 5 foot sections for ease of handling. Drain pipe has one end expanded so a coupler won't be needed.

rockhillmanor wrote:

klutchdust wrote:
Quote:"Genturi pipes are NOT hot. That's the whole reason for buying them!""

I beg to differ. At a recent event i touched one on a coach nearby and it was hot. No hotter though than the one I made using similar plastic pipe.

Sure it was a genturi? :W

I have had mine for years and it is not even warm to the touch after running 24 7's.

Looked like all the other ones i have seen that are store bought. Doesn't matter.

klutchdust wrote:
Quote:"Genturi pipes are NOT hot. That's the whole reason for buying them!""

I beg to differ. At a recent event i touched one on a coach nearby and it was hot. No hotter though than the one I made using similar plastic pipe.

Sure it was a genturi? :W

I have had mine for years and it is not even warm to the touch after running 24 7's.

Thanks, everyone--I was thinking about CO/fumes when I made the original post, but I'm glad that the heat issue was brought up--I'll certainly pay attention to that now! Where the exhaust stack will end up is fairly close to one of the roof vents, but further from the Fantastic Fan, so that does bear watching. Thanks for all the input!

Quote:"Genturi pipes are NOT hot. That's the whole reason for buying them!""

I beg to differ. At a recent event i touched one on a coach nearby and it was hot. No hotter though than the one I made using similar plastic pipe.

Current Gen-turi instructions state to make sure that end of Gen-turi extends 6" above roof. RV AC units do not circulate outside air into RV. There should be no problem with fumes. Open vents could be a problem. Here is a link to instruction from Camco posted on Amazon. You will have to scroll down the page for instruction and compatibility info.
Since my Class C is higher than normal C's. I have the 18" extension. It helps to keep fumes away from all vents.