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Old 07-24-2019, 02:33 AM   #1
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Brand: Still Looking
State: Alabama
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THOR #14841
genset exhaust

Noticed on some super-c models the genset exhaust pipe is routed to the front approx. 10-ft exiting behind the front wheel seems like an "problem" waiting to happen have couple of questions :
1. Any particular reason known for front routing especially at 10-ft ?
2. Has anyone shortened the overall length ?
3. Has anyone re-routed the piping towards the rear or simply straight to the side ?
Thanks for any input and/or explanation.
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Old 07-24-2019, 08:47 AM   #2
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Model: Aria 4000
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My Aria Class A has one extending out just behind the front wheel-it does seem a bit long and I considered trimming it back but found a wider storage unit that would accommodate the coach.
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Old 07-24-2019, 07:28 PM   #3
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Model: THOR Chateua 35SF
State: Georgia
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THOR #11130
No issues here...it's a good design as the exhaust pipe is on the complete opposite end and side of the bed. I called Cummins/Onan before purchasing my MH with this same concern of it being run so long, horizontally. They told me they must approve every install design by every manufacturer and all is well.
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Old 07-24-2019, 11:45 PM   #4
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Thor does that on some Class As also. I saw an Axis at an RV show that was routed forward like described.

The one I saw seemed routed to take generator exhaust away from slide, otherwise it would have exited under or too close to driver-side slide. It also makes it possible to install a vertical Venturi riser to get exhaust above roof. If exhaust came out under slide it would be tougher to support the Venturi.

I could be wrong, but would check distance to slide first before revising exhaust pipe.
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Old 07-25-2019, 02:45 PM   #5
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State: Georgia
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^^Exactly correct^^ Any shortening would dump it out next to your legs at the door and any further shortening would dump it out under or near the front leading edge of the slide. You also have the propane tank just forward of the genset and you don't want any additional heat running under it. It works great as designed.
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Old 07-25-2019, 03:17 PM   #6
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Model: Axis 27.7
State: Pennsylvania
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THOR #12085
I was told by my RV dealer if I trimmed the exhaust it would not pass state inspection. He may be right or wrong , but if ain’t broke why fix it?
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