Tankless Water Heaters - Page 4 - Luxury Coach Lifestyles
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Old 09-09-2013, 01:01 AM   #31
rellick
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Not sure if these are the same as you have Larry but I am going to order one of these thermostatic mixing valves for my coach, http://www.wattsindustries.com/image...xingValves.pdf
This way the hot water can be set quite high, or in my case about 190 deg with the heat exchanger and 140 deg with 110v it will automatically mix with cold to give the desired output temp. thus having more hot water for showering etc. No electricity needed works on temp. similar to a thermostat in an engine.
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77 38' Newell Coach Repowered from Smokin' V555TA To 325hp 8.3 inline 6 cummins, Allison 3000 series trans
87 40' Newell Coach 475hp 8V92 DD(sold)
22' 350hp Jet Riverboat
79 Ford F250 4x4
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Old 09-09-2013, 02:38 AM   #32
larryweikart
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I have one very similar to the one shown by "Bath Manufacturer". It has always worked very well.
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Old 09-10-2013, 03:34 PM   #33
77newell
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Quote:
Originally Posted by rellick View Post
One of those would be the answer, on my coach it would be tricky venting the lp. I will use the old one for now, here is a couple of pics of the bay floor, wood on steel is how it was built, I am going to add some more crossmembers to take the sag out of the floor and put aluminum with no wood. The old wood was removed with a shovel and a shopvac...
Keith: You are probably too far along now but I rebuilt my water bay using WEST epoxy coated plywood for the flooring. The sheet was cut to size and any holes cut before epoxying the thing with three coats of epoxy. I left in place the existing steel sheet that had multiple cut holes and corrosion holes. I sprayed all that metal with used engine oil to rust-proof it and then put sheet galvanized steel laid over that before the ply went on. I also built an epoxy coated/lined waste tank to replace the 1/4" steel original tank that leaked in hidden places which is one reason the original uncoated floor went. The nice thing about the coated ply floor is that it kept all the dimensions close to original while gaining protection from any "loose water". I also put an epoxy coated lip around the edge of the floor to keep any water from trickling over the edges rather than draining at intended spots.
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Old 09-10-2013, 04:37 PM   #34
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Hi Jon, Yes my floor is pretty much finished other than new sil plates and automitive carpet in the storage bay, I wanted to get rid of any wood all together, and the main structure (1-1/2 tubing was starting to sag), I also added the 1-1/2 and 1x1 tubing along the edge under the sils to add alot more strength to the sides, all there was there was a small piece of 1/8 steel bent in a C shape with the aluminum skin riveted to it, This also having somewhere to tie in my new cross members, any side impact here will be the pity of anything that runs into it. All the steel got coated with por15. My waste tank is 1/8 aluminum, probably would have been easier to build new but time and materials were the issue, I put a whole new bottom in it and some side pieces with 3/16, and all new fittings, ( got rid of the the threaded and went with pipe for rubber couplers). This way there is room for any movement. Newell had the tanks sitting on wood bases that were rotten also, so I built some out of aluminum tubing, then put a strip of rubber weatherstrip between the tank and the base. The floor is 3/16 aluminum painted with endura and installed with metal roof sealant, sikaflex and 3/16 stainless rivets. I had no issues with dimensions, I put new holes in where the new plumbing had to go.
I like the idea of the epoxy coated tank, that would definately help preserve the inside of the tank, I do plan on doing that. these tanks are easy enough to pull in an out. What did you make your new tank out of? I think the tank leakage is the culprit in alot of these older Newells rust issues, the rest of the coach is pretty good other than the battery bays that need some attention. Did your 77 have the heat exchanger water heater? was there some kind of mixing valve in it?
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77 38' Newell Coach Repowered from Smokin' V555TA To 325hp 8.3 inline 6 cummins, Allison 3000 series trans
87 40' Newell Coach 475hp 8V92 DD(sold)
22' 350hp Jet Riverboat
79 Ford F250 4x4
Many others to list
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