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Old 12-05-2008, 05:21 AM   #1
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genturi for hydronic heating exhaust

Has anyone used this exhaust system when running the aqua hot? It is really stinky when the system is on. I'm just wondering if it's designed to fit that small pipe or one larger?
Thank you
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Old 12-05-2008, 08:50 AM   #2
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See if this helps

http://tiffinrvnetwork.com/for...ilit=genturi#p111807

The RV accessory store (Camper's Choice) at Red Bay carried either a Genturi for the Aqua Hot or an adapter. You might want to give Della a call and inquire about this. 256-356-4920.
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Old 12-05-2008, 10:11 AM   #3
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I fabricated my own some time ago and have used it a few times when required. I have about 20 bucks total in it so it was much cheaper than purchasing the retail version. I used light 4" plastic vent pipe and a custom made metal long sweep elbow that goes over the AquaHot exhaust. I suppose it could be used for the generator exhaust but I've never tried it. I can take pictures if anyone is interested but would rather send them using email because it's easier.
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Old 02-05-2009, 04:35 PM   #4
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I made one too, but used 3" pipe instead of 4". I used a 3 inch gap after the 90 degree elbow. (I don't know what the manufactured version uses there, but I would like to know). My question is in a rain, would enough water accumulate in the pipe to be a hazard to the system? Should it be taken down in rainy weather?

Thanx
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Old 03-16-2009, 10:17 PM   #5
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I decided to go with the "real" Genturi since I found one on sale at a good price and it is made of polycarbonate instead of PVC and should take the heat better over time.

I had a local muffler shop take a 2" piece of exhause pipe which I cut to about 7 inches long, and expand one end to fit over the existing Aquahot exhause pipe (2 1/8") and clamp down on the other end to fit the Genturi fitting. I drilled holes in both ends to allow for a 1/4" X3" bolt with a wing nut to make it easier to put on and take off. I also drilled the same hole in the existing chrome exhaust tip on the Aquahot exhaust pipe to make it easy to remove when I want to use the Genturi.

We are using it now for the first time here in Perry. I can tell a big difference in both noise and smell from the burner. It is well worth it so far.

Note: I also bought a 18" (?) entension for the Genturi pipe so it goes well over the roofline. This helps with dispersion of fumes and keeps them out of the coach roof vents.

Overall, very satisfied and my neighbor told me he appreciated me putting it up.
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Old 03-17-2009, 10:24 PM   #6
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I would appreciate any photos you can send. I have both a diesel gen, and aqua-hot that I would like to make a universal venting system to fit either one so I can move the diesel exhaust from my mh. Thanks Sam
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Old 03-18-2009, 02:05 PM   #7
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I also use a store bought Gen-Turi. I made an adaptor to fit my Hydro-Hot exhaust. It works great and wouldn't be without it. Can't understand why the industry would let you point your heat system exhaust at your neighbor. I also made an adaptor to fit it to the gen. and Hydro-Hot at the same time since the exhausts were only about a foot apart. It works fine that way also but I don't run both at the same time, just one or the other. Marty
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Old 03-18-2009, 06:21 PM   #8
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As a non-Aqua Hot owner, I personally applaud you for your efforts to re-route your system's exhaust. We were camped for several days next to some folks that had one that was constantly in use. We couldn't sit outside our RV because of the exhaust, and we couldn't operate our roof vents because it would just draw the exhaust in. We finally just packed up and moved.

I own the Gen-Turi and love it. I use it with the genset whenever we're dry camping or near someone that might get smoked out otherwise.

Craig
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Old 03-19-2009, 11:20 AM   #9
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Update on aqua-hot exhaust venting. I went to Perry Ga and the FMCA show where I talked to the rep. from Aqua-hot. He said the exhaust temps. were around 500deg f. I do not know the exhause temps at the Onan but my guess it would be less than this. This info will help me design a universal venting system for both gen. and aqua-hot.
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Old 03-19-2009, 08:30 PM   #10
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I'm very curious about this as I have an aqua-hot system and don't want to offend neighbors. Does anyone have pictures of a genturi type arrangement hooked up to their hydronic heating system?
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Old 03-20-2009, 12:53 AM   #11
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I do have pictures of my adaptors connected to my MH Hydro-Hot and the generator but I am not smart enough to post them here. If you PM me with your e-mail address I will gladly send them to you. Marty
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Old 04-02-2009, 11:02 PM   #12
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I too have Hydro Hot and use my Genturi on it. Steve R. is correct by saying it cuts down the noise and smell of the fumes. I set my unit up a little different. I went to a Auto Zone auto parts store and bought a piece of adapter pipe that was 1 13/16" x 2" in dia. I took the chrome extension pipe off of the HH exhaust pipe, slipped the adapter over it and put the 90 degree elbow piece of the Genturi over the small end of the adapter pipe and that was it...........Hooked up the rest of the Genturi pipe and that was it. It cost me all of a couple of bucks for the adapter pipe........Oh yes, I also purchased an 18" extension pipe for the Genturi to get the pipe over the top of the roof......
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