Wave 3 Heater Installation - Fiberglass RV


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Old 12-13-2008, 08:22 PM   #1
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I just completed installation of a Wave 3 heater in our 13' Scamp. I mounted it below the closet door, and plumbed it in using 3/8" copper tubing. After reading about some other installations, I decided to tee into the bulkhead fitting outside the body of the trailer and take a direct route across the outside front of the body (behind the battery box) and then tuck under the floor on the curbside of the frame. From there, it was a simple matter to run along the frame rail, then up into the bottom of the closet on the front side of the wheel well, and then penetrate the closet wall to connect to the heater. I intalled a shutoff cock just inboard of the curbside frame rail in the horizontal run behind the battery box. All finished, no leaks after a little extra wrenching in a couple of places, everything tied down and the heater works great. Now, after all this, I'm wondering if I should have left some expansion bends in the tubing. There is not much give in the run of copper. I looked at the difference in thermal expansion coefficients between copper and the steel frame, and for the short distance involved, there is only .012" of difference between the two for a span of 100 F. So thermal expansion shouldn't be an issue, but what about vibration? No motors involved, so I don't envision much trouble there either. Any reason to be concerned? I'm starting to see the merits of hose, but the copper seemed like a good way to go for a permanent installation with a minimum of fittings.

Parker
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Old 12-14-2008, 03:02 PM   #2
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Any reason to be concerned? I'm starting to see the merits of hose, but the copper seemed like a good way to go for a permanent installation with a minimum of fittings.

Parker
An Inexpesive LP tester down at the floor will give you early warning of any leaks and also put your mind at ease......... sounds like you did a first class job which i also want to do with my wave 3 sooner or later.
Joe

Merry Christmas to All
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Old 12-14-2008, 03:59 PM   #3
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. . . So thermal expansion shouldn't be an issue, but what about vibration? . . .
Most trailer's gas systems are plumbed with copper, which is very malleable and doesn't tend to develop metal fatigue fractures like harder metals do. You can get copper to fatigue, but you have to do a lot of flexing and bending to make it happen. So as long as your copper tube is supported and strapped down snugly to prevent it from moving around as the trailer bumps its way down the highway vibration and metal fatigue should not be a concern.

--Peter
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Old 12-14-2008, 06:52 PM   #4
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Guys,

Thanks for your comments. Guess I'll install the appropriate gas detectors and get on with it!

Parker

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Old 12-14-2008, 07:34 PM   #5
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Guys,

Thanks for your comments. Guess I'll install the appropriate gas detectors and get on with it!

Parker
What did you do with the space where the old Suburban heater was?
I glassed mine over but am not sure what I'll do for heat. The Wave 3 is really nice but big $.
At least the gas pipe is there and waiting.
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Old 12-14-2008, 08:28 PM   #6
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What did you do with the space where the old Suburban heater was?
Jim,

Our Scamp did not come with a heater, so this was a fresh install for me.

Parker


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Old 01-11-2014, 07:56 PM   #7
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Wave 3 install 13 scamp

Parker, How did you get the copper from the hole by the wheel well to the hole in the front of the closet. I been pulling my hair out and wasting copper all day. A picture would be worth a thousand words..... Thanks Gary
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Old 01-20-2014, 07:53 PM   #8
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Hey Parker, have you tried camping at night with your Wave 3 yet? We bought a Wave 6 (just incase!) for our Burro 13' and was wondering how effective it will be in keeping us warm when we go ski-RVing (expecting sub-freezing nights). Any advice about placement?
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Old 01-20-2014, 09:21 PM   #9
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The original post was in 2008...
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Old 01-20-2014, 10:26 PM   #10
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Ming, we have a Wave 3 in our Scamp 5th wheel. It keeps our trailer in the 65-70 range on freezing nights, and that's a *much* bigger trailer. I'd be concerned that a Wave 6 might make a little 13' too warm, even on its low setting.
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Old 01-21-2014, 10:57 AM   #11
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Wave heaters

Be cautious on placement/mounting
Clearance specifications for my Wave 3 were
Sides 4"
Bottom 4"
Above 16"
Front 30"
Rear 0"
I only found one spot in a 17SD that met the specs for permanent mounting. Portable mounting feet is another option.
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Old 01-24-2014, 12:08 PM   #12
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I know this is an old thread but thought I would point out that only flare fittings are approved and safe for copper LPG piping. No compression fittings allowed.
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Old 01-24-2014, 01:19 PM   #13
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Originally Posted by beemerphile1 View Post
I know this is an old thread but thought I would point out that only flare fittings are approved and safe for copper LPG piping. No compression fittings allowed.

Ya lost me there...a flare fitting is a type of compression fitting.

If you're saying that it's the only kind allowed for use in propane and/or RV applications, I'd be most grateful for a linked reference to the applicable rules...
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Old 01-28-2014, 06:12 PM   #14
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Good thing I only work in 316ss and Swagelok compression fittings. Do you think a 6,000psi rating will be enough?
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