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Dry Camping questions (40' Intrigu e)

Yahoo Message Number: 308
Jeff ... nice response.

One comment about the exhaust pipe extension that is used when the generator is running. The name of the product is something like Venturi and has a couple of adapters to attach to varying size exhaust pipes. A word of warning ... if you have an Intrigue (at least my 2000), none of the adapters are big enough to go around the exhaust pipe. While having work done at Plemmons, they had a device made to fit ... don't know how much it cost me, but it does have a nice fit now.
Art

Re: Dry Camping questions (40' Intrigu e)

Reply #1 –
Yahoo Message Number: 310
I've seen those extenders and we were figuring we'd get one at or before the next rally we go to...glad to hear Plemmons made an adapter since we have to go back there before we get on the road to have a few other little things fixed/done, so shall make sure we go ahead and get the adapter for one of the extenders. I've heard though that there are two different kinds...one that has some gizmo in the lower part that helps take away the exhaust...is this what you are referring to? (the Venturi one..i.e. venturi effect ? Is the CW that one?) Thanks...Jan

Re: Dry Camping questions (40' Intrigu e)

Reply #2 –
Yahoo Message Number: 316
"House, Art" ahouse@...> wrote:

is used when the generator is running. The name of the product is something like Venturi and has a couple of adapters to attach to varying size exhaust pipes.
A word of warning ... if you have an Intrigue (at least my 2000), none of the adapters are big enough to go around the exhaust pipe. >>

Hmm, do they not fit because of the diameter of your pipe, or because you have that chrome plated end-piece that slightly bends down at the very end on your pipe ?

The pipe itself is straight. It's that chrome-plated end-piece that is slightly bent downwards on some coaches I've seen. That bend, of course, would create a problem.

I don't have one of those Venturi (spelling ?) pipe extenders for my coach and can't speak from personal experience. I met someone with a Bounder (I think) in another newsgroup, and he really liked his extender because it literally blows the exhaust into the sky rather than towards your neighbor's campsite.

By the way, you CANNOT simply take any hose to direct the exhaust. The exhaust temp. is much higher than most people realize. You must use a pipe extension made from a material that won't melt or burn at that temparature !!!

Regards,
Jeff

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Re: Dry Camping questions (40' Intrigu e)

Reply #3 –
Yahoo Message Number: 318
At the FMCA rally, I went to the generator seminar and they said Do not use that exhaust extender. I can't remember all the reasons, but I do remember that the exhaust was heavier than normal air, so it settles right back down. It was also something with restricting the exhaust flow.

We dry camp at dog shows all the time and if you are careful you should have no problems. We run the generator during the day if necessary and that keeps the batteries charged.

Linda

Re: Dry Camping questions (40' Intrigu e)

Reply #4 –
Yahoo Message Number: 322
Good point, Linda ! The diameter of the extension to the exhaust pipe must not be smaller than the diameter of the generator exhaust pipe. Otherwise, the constriction may cause your exhaust to look for another exit way. I have never heard of any incidents where the generator stalled because of that. However, you really want the fumes to go where they can't harm you or your neighbors, and that's up.

It seems nobody here has one of those extenders. I'll ask in the Diesel-RVs group if anyone has actualy experience with these things, and report back to you if I hear anything.

Regards,
Jeff

lrobey@... wrote:

Quote
At the FMCA rally, I went to the generator seminar > and they said Do

not use that exhaust extender. I can't remember > all the reasons,

but I do remember that the exhaust was heavier than > normal air, so it

settles right back down. It was also something > with restricting the
exhaust flow.

We dry camp at dog shows all the time and if you are > careful you

should have no problems. We run the generator > during the day if

necessary and that keeps the batteries charged.
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Re: Dry Camping questions (40' Intrigu e)

Reply #5 –
Yahoo Message Number: 324
At the only rally we ever went to (without an RV even) there was a discussion about the "extenders". Some people said there was a kind that had some kind of fan in it or some mechanism that pulled the exhaust out, thereby eliminating the "sinking fumes" problem. It's not the one sold by CW I believe, but one sold at rallies. Perhaps someone here knows what I'm talking about...Jan
 

Re: Dry Camping questions (40' Intrigu e)

Reply #6 –
Yahoo Message Number: 328
I?m following up on my post from yesterday in which I promised to ask the members of the Diesel-RV forum for input on the question of exhaust pipe extensions. The following is an overview over responses I received.
If you want to read the complete mails, please check the archives at

?http://groups.yahoo.com/group/diesel-rvs%ef%bf%bd .

---
1) Original question I posted:
Subject: Exhaust pipe extension

Exhaust pipe extensions are being discussed in the CC newsgroup. It looks like nobody actually has used one of them there. Does someone in this group have personal experience with an extension ?

In case anyone is not familiar with exhaust pipe extensions: The extension is an "L"-shaped pipe. The short "foot" of the "L" is connected to the existing exhaust pipe of the generator. The long "leg" of the "L" is attached to the RV roof. When the generator runs, the exhaust is blown into the sky rather than towards your campsite neighbor's tent. It only takes a minute or so to attach the extension when you're on the campground, and another minute or so to remove it before you break camp. I've seem them in the Camping World catalog for about $100.

Questions:

- Did you have problems finding an extension that fits your particular generator exhaust pipe ? - Is the diameter of your extension pipe equal to, or larger than the original pipe ?

- Did you experience any adverse effects as a result of using an extension pipe ?

---

2) Responses from members of the Diesel-RV group:

I bought one from CAmping World a few months ago. I had to take a file to the reducer and use a hammer in order to get it on. I bought it for the upcoming FMCA International rally in Redmond so I can't tell you how it works, yet. I ran the gen for a while, as per instructions, and painted the reducer and extension black.
---

I have a Camco generator stack. It is the only one I would use, as it has as little back pressure as can be had when using a stack, and back pressure is a problem. The stacks should be larger than the actual exhaust pipe, and there should be as few bends as possible, obviously one bend about 90 degrees is optimum.

I have not put our stack on the Dynasty. Camco provides some slip rings to allow the stack to mount onto the exhaust pipe, but I haven't tried any of them to see what is the proper size for the Onan 7.5 QD.

There are two schools of thought on stacks. It is a big cause for gripes and problems at FMCA convention, when stacks aren't used and the exhaust bothers the neighbors. But at Ogden, UT convention the fire department said that stacks are worse than the plain old exhaust as they were afraid of exhaust coming down into coaches through the roof vents! Others feel the stacks are harmful--Onan's take on the stacks for gas and propane gennies (don't know about diesel) is that they are possibly detrimental to the life of the generator. But I know that, when parked next to someone with a generator running, I appreciate the fact that the exhaust is routed above the awning rather than under it.
---

I have had one of these for several years and used it at FMCA and club rallys with no problems. I have only used it 2X on the Onan diesel generator and had no problems.

The unit comes with most of the adapters you would need. The exception is if you need the very small one as I did with the Generac gas generator.
That adapter was a rigid conduit coupler that had been sawn down one side so that it could be compressed on the exhaust pipe. If you need that one, let me know and I'll send it to you. The Onan used the supplied adapters.

The extension pipe is larger than the exhaust of the generator. Only the "L" at the bottom is metal and the pipe that extends up the side of the MH is 3" in diameter. The bottom of the vertical pipe is open where the "L" piece enters so that cool air is drawn into the vertical pipe.
Works great!
---

I have one that I used at the FMCA rally in Maine last year. Dutch was the one who told me about them and I thank you again Dutch ! It worked Great! Even on my LP Onan Genset !...ha..ha.ha. It is also a Camco unit ! ---

I assume you are talking about the generator exhaust extension. I have a number of friends who have them and are very happy with them. However, I asked the Onan people at one FMCA convention about them and they had concerns.

First, it may affect the back pressure on the exhaust.
The extension has to be carefully made and installed to avoid creating backpressure.

Next, when you exhaust into the sky, where do you think the exhaust gasses go? They are heavier than air and come right back down over your coach, maybe into your windows or air intake.

I passed on getting the extension.

---

3) Yesterday, I promised:

Quote
It seems nobody here has one of those extenders.
I'll

ask in the Diesel-RVs group if anyone has actualy > experience with these things, and report back to you > if I hear anything.
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