GMCforum
For enthusiast of the Classic GMC Motorhome built from 1973 to 1978. A web-based mirror of the GMCnet mailing list.

Home » Public Forums » GMCnet » Atwood electric water heater
Atwood electric water heater [message #357795] Tue, 18 August 2020 08:11 Go to next message
6cuda6 is currently offline  6cuda6   Canada
Messages: 975
Registered: June 2019
Karma: -6
Senior Member
Anyone know much about these vintage heaters? Looks like mine has 2 electric temp sensors in series then into the element or so they call it.

I need to replace the element(s) and have no idea what model etc i have....a guess is an old EHM-6sm? . Picture here.... http://www.gmcmhphotos.com/photos/electrical/p67584-water-heater.html

Schematic for this water heater.... http://www.gmcmhphotos.com/photos/electrical/p67585-water-heater-2.html


Rich Mondor, Brockville, ON 77 Hughes 2600

[Updated on: Tue, 18 August 2020 08:38]

Report message to a moderator

Re: [GMCnet] Atwood electric water heater [message #357796 is a reply to message #357795] Tue, 18 August 2020 08:33 Go to previous messageGo to next message
powwerjon is currently offline  powwerjon   United States
Messages: 849
Registered: March 2013
Karma: -2
Senior Member
With so many different Atwood units out there and this being an older unit it would help if you posted the model number and maybe several pictures of the possible replacement items that you are asking about.

JR Wright
Michigan
> On Aug 18, 2020, at 9:11 AM, 6cuda6--- via Gmclist wrote:
>
> Anyone know much about these vintage heaters? Looks like mine has 2 electric elements in series then into a temp control or so tgey call it.
>
> One element seems to have a "reset" button on it but not the other.
>
> I need to replace the element(s) and have no idea what model etc i have.
> --
> Rich Mondor,
>
> Brockville, ON
>
> 77 Hughes 2600
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org


_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

Re: Atwood electric water heater [message #357801 is a reply to message #357795] Tue, 18 August 2020 10:33 Go to previous messageGo to next message
6cuda6 is currently offline  6cuda6   Canada
Messages: 975
Registered: June 2019
Karma: -6
Senior Member
I have no idea what model it is honestly....ill try to get better pictures but its pretty hard to do with it mounted. I need to replace the element i suspect and if it is an older EHM-6sm the element can be bolt in or screw in.

I was hoping someone would recognise the heat sensors and be able to give me better info.


Rich Mondor, Brockville, ON 77 Hughes 2600
Re: Atwood electric water heater [message #357849 is a reply to message #357795] Wed, 19 August 2020 08:48 Go to previous messageGo to next message
6cuda6 is currently offline  6cuda6   Canada
Messages: 975
Registered: June 2019
Karma: -6
Senior Member
Ok so its an EH6 with the bokt in element (4 bolts) not the screw in.

So question is are residencial heating elements the same as rv units? Asside from the element length...im talking gasket and flage etc....


Rich Mondor, Brockville, ON 77 Hughes 2600
Re: [GMCnet] Atwood electric water heater [message #357852 is a reply to message #357849] Wed, 19 August 2020 09:00 Go to previous messageGo to next message
stu@97381.com, Emery  is currently offline  stu@97381.com, Emery   United States
Messages: 232
Registered: June 2020
Karma: 2
Senior Member
You can buy an adapter that bolts in and allows you to use screw in elements. Much easier to service. Check Home Depot or Lowe’s.

Emery Stora

> On Aug 19, 2020, at 7:50 AM, 6cuda6--- via Gmclist wrote:
>
> Ok so its an EH6 with the bokt in element (4 bolts) not the screw in.
>
> So question is are residencial heating elements the same as rv units? Asside from the element length...im talking gasket and flage etc....
> --
> Rich Mondor,
>
> Brockville, ON
>
> 77 Hughes 2600
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org

_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
Re: Atwood electric water heater [message #357853 is a reply to message #357849] Wed, 19 August 2020 09:30 Go to previous messageGo to next message
Matt Colie is currently offline  Matt Colie   United States
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
Senior Member
6cuda6 wrote on Wed, 19 August 2020 09:48
Ok so its an EH6 with the bokt in element (4 bolts) not the screw in.

So question is are residencial heating elements the same as rv units? Asside from the element length...im talking gasket and flage etc....
Rich,

All the bolt in elements are the same 4 bolt flange. The only minor issue is that the way bigger elements can be longer. So, either measure the tank length or stick a something in so you know how much room you have. Most or the 4000/4500 watt elements are doubled back and so will fit.

Why do you want a 4500watt heater? It is a 240V heater and will only be 1250 watt at 120V. That means that the heat density will be 1/4 of the old element and so will scale up less and probably last forever.

Matt


Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
Re: Atwood electric water heater [message #357996 is a reply to message #357795] Mon, 24 August 2020 07:26 Go to previous messageGo to next message
jhbridges is currently offline  jhbridges   United States
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
Senior Member
I hit a house trailer parts place in Gainesville Ga. He had a stack of four bolt elements and of screw in elements. We matched length with a four bolt 220 element which works well in my heater.

--johnny


Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons. Braselton, Ga. I forgive them all, save those who hurt the dogs. They must answer to me in hell
Re: Atwood electric water heater [message #358001 is a reply to message #357795] Mon, 24 August 2020 08:31 Go to previous message
6cuda6 is currently offline  6cuda6   Canada
Messages: 975
Registered: June 2019
Karma: -6
Senior Member
no choice all i could get was 120v/1500w....quess i know how to change it for next time...lol.

Rich Mondor, Brockville, ON 77 Hughes 2600
Previous Topic: Trip report- rally time
Next Topic: CLOSURES IN TORONTO AREA
Goto Forum:
  


Current Time: Wed Sep 18 18:08:37 CDT 2024

Total time taken to generate the page: 0.03060 seconds