 |
 | Home | Contact Us | FAQ | Search & Site Map | Link to Us |
 | Sign In | Join | Other 45 Sites in Network |
Car Forum / Driving, Maintenance, Tuning / RVs / July 2009Making a vertical exhaust out of your Generator
Ive just completed making my own vertical exhaust for a 4.0 Onan Generator , which termintates about 12" above the roofline. Ive seen the one offered in Camping World and thought I could make something effective for a fraction of the cost. Theres is a thin metal one , but i elected to make mine out of schedule 40 1.25" dia. PVC as even after 2 hours of Generator operation, I can hold my hand on the exhaust gases AND exhaust tip...thus i figure it is roughly 110 f. max. (PVC is rated at 140 f. max) . Ive made my system into three- 4' lengths incl. (glued) fittings that simply push together. , sliding the inlet of the PVC pipe onto the existing 3" of the Generators exhaust tip . I use a fixed clamp at the top of the RV for the PVC pipe to push thru to hold it into place. The Piping comes out from the side by about 1" so it does not vibrate against the side of the RV. I drilled a 1/4" hole on the very bottom of the first inlet PVC elbow to allow collected condensate to drain out . The inlet PVC Pipe that pushes over the exhaust tip is secured with a long Pin that pertrudes thru the center of the PVC Pipe and Generator exhaust tip. I ran the Generator for a good while and it seemed to function great without it getting hot . It is somewhat quieter too and no exhaust smell is detected . Have you done anything simular ? Any tips/concerns you wish to make ? Thanks for your valued input. > Ive just completed making my own vertical exhaust for a 4.0 Onan > Generator , which termintates about 12" above the roofline. Ive seen [quoted text clipped - 21 lines] > > Thanks for your valued input. I think carbon monoxide is heaver than air and I would be very careful of it re entering the RV. I would lay the pipe on the ground downwind of the RV. I may be wrong about it being heavy but I would still lay the pipe on the ground or not use it at all. I like to be more safe than dead. Larry > "IlBeBauck@gmail.com" <ilbebauck@gmail.com> wrote in message > > Ive just completed making my own vertical exhaust for a 4.0 Onan > > Generator , which termintates about 12" above the roofline. Ive seen [quoted text clipped - 26 lines] > RV. I may be wrong about it being heavy but I would still lay the pipe on > the ground or not use it at all. I like to be more safe than dead. CO is slightly lighter than air at NTP. The mixture of CO, CO2 and H2O vapor is carried upward by thermal convection (chimney draw). Ilbebauck's solution seems like a good one IMNSHO.  SignatureNick, KI6VAV. Support severely wounded and disabled Veterans and their families: https://www.woundedwarriorproject.org/ Thank a Veteran! Support Our Troops: http://anymarine.com/ You are not forgotten. Thanks ! ! ~Semper Fi~ USMC 1365061 > "IlBeBa...@gmail.com" <ilbeba...@gmail.com> wrote in message > [quoted text clipped - 33 lines] > > - Show quoted text - Camping World offers it to the public : http://www.campingworld.com/shopping/item/gen-turi-generator-exhaust-system/14041 >Ive just completed making my own vertical exhaust for a 4.0 Onan >Generator , which termintates about 12" above the roofline. Ive seen [quoted text clipped - 21 lines] > >Thanks for your valued input. When you said you have "seen" the one sold by Camping World I'm guessing you mean "seen" as in you've seen the ads? I say that because it is not metal, except where it connects to the generator exhaust. I think it is ABS plastic - used to have one, but left it with the old coach because a through-the-roof generator exhaust is standard on a Blue Bird. The unique thing about the commerical one is the venturi, which is why it is called Gen-Turi. At the bottom the small pipe is connected to the large pipe by straps rather than a sealed connection. This causes a large amount of air to be sucked in along with the exhaust, making a much cooler mixture in the pipe. I can't say whether you need that or not, but it is not a bad idea. Your exhaust may be 110 now, but what do you think it will be when the air temp is 110? You can find some good pictures of a homemade one with venturi here: http://barthmobile.com/groupee/forums/a/tpc/f/3631087061/m/8381039061 Don Bradner www.arcatapet.net '90 Wanderlodge PT40 "Blue Thunder" towing '07 Jeep Liberty Posting today by Satellite from Yellowstone National Park > On Sat, 18 Jul 2009 07:47:39 -0700 (PDT), "IlBeBa...@gmail.com" > [quoted text clipped - 48 lines] > > - Show quoted text - Ive seen the Gen-Turi on RV's is what i meant, and, ive seen the ad. The way i made my vertical exhaust, was to go with a slightly larger inlet that pushes OVER the present Generators tip , which will induce air mixed in with the exhaust gas flow thereby keeping the exhaust gas cool . I did my experiment at an outdoor temp of about 80 f. Theres nowhere I RV where the outside temp. is 110 f. I dont go RVing in anything much over 90 f. I tried that with my old Winny, but the exhaust temp was far too high for plastic. Maybe with the venturi addition that would work. > Ive just completed making my own vertical exhaust for a 4.0 Onan > Generator , which termintates about 12" above the roofline. Ive seen [quoted text clipped - 21 lines] > > Thanks for your valued input. > I tried that with my old Winny, but the exhaust temp was far too high for > plastic. Maybe with the venturi addition that would work."IlBeBa...@gmail.com" <ilbeba...@gmail.com> wrote in message [quoted text clipped - 28 lines] > > - Show quoted text - Thanks Don for the site. I actually considered using Electrical Condut and fittings for mine, except, the exhaust from my Generator is not really that hot and well within the limits of PVC pipe. Plus, its much lighter than 1.25" Metal Conduit. I do get a venturi effect from just having a larger diameter inlet pipe pushed over the Generators exhaust tip as air is sucked in around the circumferance. But the Guy in the site did a nice job. By the way, my total cost was $ 12. > > I tried that with my old Winny, but the exhaust temp was far too high for > > plastic. Maybe with the venturi addition that would work."IlBeBa...@gmail.com" <ilbeba...@gmail.com> wrote in message [quoted text clipped - 39 lines] > > - Show quoted text - UPDATE : The PVC Exhaust Pipe setup melted finally !!!! Ive therefore switched over to using 1.25" Conduit with galvanized Pipe fittings for the system. Do NOT use PVC . It just took an extended run time to finally melt it rendering it useless. On Jul 30, 9:58 am, "IlBeBa...@gmail.com" <ilbeba...@gmail.com> wrote: > UPDATE : The PVC Exhaust Pipe setup melted finally !!!! Ive > therefore switched over to using 1.25" Conduit with galvanized Pipe > fittings for the system. Do NOT use PVC . It just took an extended > run time to finally melt it rendering it useless.- Hide quoted text - > > - Show quoted text - Well DUH! Too bad it didn't catch on fire too, ya Dumbass |
Reply to this Message |
 Sign In
 Join
 My Latest Posts My Monitored Threads My Blog My Photo Gallery My Profile My Homepage Start New Thread Enable EMail Alerts Rate this Thread
|
©2009 Advenet LLC Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.