Shortening the Oasis exhaust pipe

[Buly]

Just finished replacing the summer loop pump. Now I’m thinking about shortening the exhaust on the Oasis. Can’t believe they designed it with (I’m guessing) about 25’ long exhaust with many bends? That’s lots of back pressure. My neighbor did it on his DS. Will check his first.
Thinking of bring it somewhere infront of the rear tires? Wander if anyone else has done it?

 

[DavidL]

Where in the plan will the exhaust exit? And is there gaps that the exhaust can find it's way back into the RV at night? My guess is that is why they spent all that material to go to the back. Is it working? Then I wouldn't worry about back pressure if it is.

 

[Buly]

On my DS, the Oasis exhaust goes from the back all the way to the front, discharging infront of the front tire.

 

[Sealyn]

Why modify it? Is there an issue with its operation? Maybe a call to manufacturer will answer your questions.

 

[DavidL]

My guess is the pipe is to get the exhaust away from the bedroom.

 

[Buly]

I believe it will improve combustion. I’m getting too much carbon build up. Have to clean nozzle often and starting fails once in a while.
The little intake blower fan has to push the exhaust gasses all that distance. There is no convection draft like a vertical chimney, or the high power of the internal combustion engine. Who knows? It may work. I think on some newer models, they shortened the exhaust?

 

[JRS]

Mine came with the Oasis exhaust just in front of the drivers side dual wheels.

 

[DavidL]

Just be REALLY sure no fumes get into the coach. And have a Co2/ NoX sensor in the bedroom / front of coach.
Personally, I would leave well enough alone. Believe that they would not have spent the $300 in pipe if they didn't need to. There are specs for the number of bends and Ft in the installation manual. I am sure they are within the specs.

What I am surprised is not seeing a factory pipe up to the roof...I am sure it's due to issues with heat. But there are solutions for that problem too...

 

[Buly]

I was right. As Joe said, they moved the exhaust the way I’m planing to do it. Infront of the dually wheels.

 

[Neemer]

I was right. As Joe said, they moved the exhaust the way I’m planing to do it. Infront of the dually wheels.

Mine is in that general area as well.