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Water heater [message #288037]

Tue, 29 September 2015 19:26

RandyM

Messages: 58
Registered: December 2013
Location: San Antonio, TX

Karma: 0

Member

What is the best option to change out old water heater on 1978 Royale?

Want to retain engine heat and also have electric element.

I have removed the propane from the coach.

Randy

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Re: Water heater [message #288038 is a reply to message #288037]

Tue, 29 September 2015 20:02

A Hamilto

Messages: 4508
Registered: April 2011

Karma: 39

Senior Member

RandyM wrote on Tue, 29 September 2015 19:26

What is the best option to change out old water heater on 1978 Royale?
Want to retain engine heat and also have electric element.

I have removed the propane from the coach.

Randy

This one is electric and I think it has an anti-freeze coil in it for engine heat:

http://www.appliedgmc.com/prod.itml/icOid/518

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Re: Water heater [message #288044 is a reply to message #288037]

Wed, 30 September 2015 05:32

77Royale

Messages: 461
Registered: June 2014
Location: Mid Michigan

Karma: 6

Senior Member

Probably looking at one of these guys if you have an existing Atwood in your Royale.

http://www.adventurerv.net/atwood-gallon-water-heater-gas-electric-heat-exchanger-p-1157.html?osCsid=d4jiubm22bn24re0vkhmodi1m5

Just dont hook up the propane part of it.

They sell replacement water tanks too if thats an option.

I do like the heat exchange feature on ours to pull in somewhere with hot water ready to go.

77 Royale, Rear Dry Bath. 403, 3.55 Final Drive, Lenzi goodies, Patterson carb and dizzy. Mid Michigan

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Re: Water heater [message #288047 is a reply to message #288037]

Wed, 30 September 2015 08:25

Dan

Messages: 99
Registered: August 2014
Location: Allentown, NJ

Karma: 0

Member

Here is the stainless tank I got from applied right before I put it in.

http://i.imgur.com/lSHOJPy.jpg

Do a better job at doping your pipes then me or else they will drip. Also when you are replacing the heater line make sure that things are really tight, I decided to splice a little new line into my system. I lost my coolant and overheated, luckily it was just idling in my driveway as I fiddled with the AC no damage done. The engine preheater makes the water in the tank HOT after a good drive. Take your showers shortly after parking and you may never need to turn on the electric element. I haven't yet.

Dan

Dan DeLuca 1978 Eleganza II (http://imgur.com/gallery/YFHhK) Parked at Evil Monkey Farm in Allentown, New Jersey

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Re: Water heater [message #288063 is a reply to message #288037]

Wed, 30 September 2015 13:10

77Royale

Messages: 461
Registered: June 2014
Location: Mid Michigan

Karma: 6

Senior Member

The hotwater tanks were one of those "differences" between GMCs finished off by GMC, and other Upfit coaches which started life as Transmodes.

I believe the Royales all had Atwood 6 gallon water heaters. So they are different than the ones meant for replacements in true to form GMCs. Im sure one meant for a GMC could work or be made to fit in a Royale. But Im not sure if its worth the effort/hassle.

77 Royale, Rear Dry Bath. 403, 3.55 Final Drive, Lenzi goodies, Patterson carb and dizzy. Mid Michigan

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Re: Water heater [message #288086 is a reply to message #288063]

Thu, 01 October 2015 07:59

Bob de Kruyff

Messages: 4260
Registered: January 2004
Location: Chandler, AZ

Karma: 1

Senior Member

77Royale wrote on Wed, 30 September 2015 12:10

The hotwater tanks were one of those "differences" between GMCs finished off by GMC, and other Upfit coaches which started life as Transmodes.

I believe the Royales all had Atwood 6 gallon water heaters. So they are different than the ones meant for replacements in true to form GMCs. Im sure one meant for a GMC could work or be made to fit in a Royale. But Im not sure if its worth the effort/hassle.

GM tried very hard to avoid any unsightly doors or access panels on the outside of the GM furnished coach.

Bob de Kruyff
78 Eleganza
Chandler, AZ

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Re: [GMCnet] Water heater [message #288088 is a reply to message #288086]

Thu, 01 October 2015 08:15

USAussie

Messages: 15912
Registered: July 2007
Location: Sydney, Australia

Karma: 6

Senior Member

G'day,

This is what Avion's have:

http://www.westmarine.com/buy/west-marine--120v-marine-water-heater-with-heat-exchanger-6-gallon-front-rear-mounts--13915103

Regards,
Rob M.
The Pedantic Mechanic

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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426

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Re: Water heater [message #288090 is a reply to message #288037]

Thu, 01 October 2015 10:39

RandyM

Messages: 58
Registered: December 2013
Location: San Antonio, TX

Karma: 0

Member

The one from West Marine, looks like it would fit the bill.

Maybe even the 11 gallon model.

Thanks

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Re: [GMCnet] Water heater [message #288343 is a reply to message #288037]

Wed, 07 October 2015 20:43

Ken Henderson

Messages: 8726
Registered: March 2004
Location: Americus, GA

Karma: 9

Senior Member

Randy,

We still use the original 6g. Atwood in our X-Birchaven. Your Royale
probably had the same heater. While the LPG is still installed, we seldom
use it. The engine heat coil provides more than enough hot water on travel
days. When shore power is available, I turn on the 120vac element I
installed in the drain plug hole 17 years ago. That provides all the hot
water SHE and I need. Only when dry camping do I ever light the LPG.

The drain plug replacement elements are readily available -- notably in the
back pages of the FMCA magazine.

Ken H.

On Tue, Sep 29, 2015 at 8:26 PM, Randy Meek
wrote:

> What is the best option to change out old water heater on 1978 Royale?
>
> Want to retain engine heat and also have electric element.
>
> I have removed the propane from the coach.
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach

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Re: [GMCnet] Water heater [message #288346 is a reply to message #288343]

Thu, 08 October 2015 05:09

Loffen

Messages: 1087
Registered: August 2013
Location: Norway

Karma: 1

Senior Member

I bought this one for mine

http://www.ebay.com/itm/Atwood-EHM6-EHM6-SM-Electric-Marine-Boat-Water-Heater-Heat-Exchanger-6Gal-110v-/331357729035?hash=item4d2675b10b

1973 23' # 1848 Sky Blue Glacier called Baby Blue and a 1973 26'-3 # 1460 Parrot green Seqouia Known as the Big Green, And sold my 1973 26'-2 # 581 White Canyon lands under the name Dobbelt trøbbel in Norway

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Re: [GMCnet] Water heater [message #288348 is a reply to message #288346]

Thu, 08 October 2015 07:39

USAussie

Messages: 15912
Registered: July 2007
Location: Sydney, Australia

Karma: 6

Senior Member

Loffen, That Atwood is the OEM water heater as delivered from from Avion. The West Marine version is mo betta because:

1) the case is stainless steel
2) the drain is located lower in the tank and will drain more water out for winterization (downside is you have to make 100% sure you have refilled the tank before you turn it on in the spring or you WILL burn out the electrical element.
3) there is a hole at the top of the center front rectangular panel that you can reach in and reset the overheat trip switch. On the Atwood you have to take the cover off.
4) the West Marine model is cheaper (but not much).
5) the ports on the West Marine model are a bit further apart which will make plumbing it up a bit easier.

Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426

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Re: [GMCnet] Water heater [message #288363 is a reply to message #288348]

Thu, 08 October 2015 11:52

Loffen

Messages: 1087
Registered: August 2013
Location: Norway

Karma: 1

Senior Member

USAussie wrote on Thu, 08 October 2015 14:39

Loffen, That Atwood is the OEM water heater as delivered from from Avion. The West Marine version is mo betta because:

1) the case is stainless steel
2) the drain is located lower in the tank and will drain more water out for winterization (downside is you have to make 100% sure you have refilled the tank before you turn it on in the spring or you WILL burn out the electrical element.
3) there is a hole at the top of the center front rectangular panel that you can reach in and reset the overheat trip switch. On the Atwood you have to take the cover off.
4) the West Marine model is cheaper (but not much).
5) the ports on the West Marine model are a bit further apart which will make plumbing it up a bit easier.

Oh well, it is bought and the old one did last for 40 over years, not to worried Smile

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Re: [GMCnet] Water heater [message #288371 is a reply to message #288363]

Thu, 08 October 2015 16:26

USAussie

Messages: 15912
Registered: July 2007
Location: Sydney, Australia

Karma: 6

Senior Member

Loffen,

The information I provided was not to indicate you had made a mistake, it was to provide information for future buyers.

Regards,
Rob M.
The Pedantic Mechanic

-----Original Message-----
From: Espen Heitmann

Oh well, it is bought and the old one did last for 40 over years, not to worried :)

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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426

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