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[GMCnet] Water heater timer [message #61706]

Mon, 26 October 2009 08:15

GMCMHRON

Messages: 113
Registered: January 2004

Karma: 0

Senior Member

I am in the process of replacing my water heater element. Seem to go every
two or three years, usually when I forget to shut it off when draining the
system. Installing antifreeze bypass at the same time.

Thinking of installing a timer so that it doesn't run all the time. Come
to the coach after not using it for weeks and find plenty of hot water...not
good.

The mechanical timers seem so...well 70's. Thinking of installing one of
these. Have used it on my bathroom blowers and on things like cooler lights
at a florist.

http://www.amazon.com/gp/product/B000U3DTXC

Anyone have any experience using one on the GMC? Does it handle voltage
fluctuations, etc.

Ron and Julie

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Re: [GMCnet] Water heater timer [message #61708 is a reply to message #61706]

Mon, 26 October 2009 08:21

WD0AFQ

Messages: 7111
Registered: November 2004
Location: Dexter, Mo.

Karma: 207

Senior Member

Ron, Wally in Omaha, hjas a timer on his. I just bought one for mine but have not yet installed it. That is a great idea. I think my water heater has been on all week cuz I plugged in my coach when we got home and forgot about water heater, as usual. An hour should be plenty of time. I actually got one that will turn it on and off when I want.
Dan

3 In Stainless Exhaust Headers One Ton All Discs/Reaction Arm 355 FD/Quad Bag/Alum Radiator Manny Tran/New eng. Holley EFI/10 Tire Air Monitoring System Solarized Coach/Upgraded Windows Satelite TV/On Demand Hot Water/3Way Refer

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Re: [GMCnet] Water heater timer [message #61709 is a reply to message #61706]

Mon, 26 October 2009 08:24

hertfordnc

Messages: 1164
Registered: September 2009
Location: East NC

Karma: 0

Senior Member

I googled the part number and found other info. It's only rated at 1000 watts

http://yhst-85130524586239.stores.yahoo.net/220113112694.html

The wind up style they have for hte heat lamps in public showers are probably much higher rated.

Or perhaps, a heavy duty 24 hour timer that cycles on with your predicted need.

dave

Dave & Ellen Silva Hertford, NC 76 Birchaven, 1-ton and other stuff Currently planning the Great american Road Trip Summer 2021 It's gonna take a lot of Adderall to get this thing right.

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Re: [GMCnet] Water heater timer [message #61711 is a reply to message #61709]

Mon, 26 October 2009 08:29

hertfordnc

Messages: 1164
Registered: September 2009
Location: East NC

Karma: 0

Senior Member

I assume the water heater is more like 1500 watts?

In which case, this relay would solve the problem

http://www.ralphselectronics.com/ProductDetails.aspx?itemnumber=NTE-R0411A30120&source=googleps

dave

Dave & Ellen Silva Hertford, NC 76 Birchaven, 1-ton and other stuff Currently planning the Great american Road Trip Summer 2021 It's gonna take a lot of Adderall to get this thing right.

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Re: [GMCnet] Water heater timer [message #61713 is a reply to message #61706]

Mon, 26 October 2009 08:32

wally

Messages: 643
Registered: August 2004
Location: Omaha Nebraska

Karma: 5

Senior Member

GMCMHRON wrote on Mon, 26 October 2009 08:15

I am in the process of replacing my water heater element. Seem to go every
two or three years, usually when I forget to shut it off when draining the
system. Installing antifreeze bypass at the same time.

Thinking of installing a timer so that it doesn't run all the time. Come
to the coach after not using it for weeks and find plenty of hot water...not
good.

The mechanical timers seem so...well 70's. Thinking of installing one of
these. Have used it on my bathroom blowers and on things like cooler lights
at a florist.

http://www.amazon.com/gp/product/B000U3DTXC

Anyone have any experience using one on the GMC? Does it handle voltage
fluctuations, etc.

Ron and Julie

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This is what we use in the 1 hour range. Rating is 20 amps.
http://www.intermatic.com/products/timers/in-wall%20timers/commercial%20spring%20wound%20timers.aspx
I got the idea from the net and copied. They are available at lumberyards like Menards and Home Depot.
here are some pics of what others did:
http://www.gmcmhphotos.com/photos/showphoto.php?photo=2607
http://www.gmcmhphotos.com/photos/showphoto.php?photo=18197

HTH

Wally Anderson
Omaha NE
75 Glenbrook

[Updated on: Mon, 26 October 2009 08:40]

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Re: [GMCnet] Water heater timer [message #61715 is a reply to message #61706]

Mon, 26 October 2009 08:41

RF_Burns

Messages: 2277
Registered: June 2008
Location: S. Ontario, Canada

Karma: 3

Senior Member

I having been thinking of adding a timer too, since I winterized the coach a couple weeks ago and forgot to turn off the water heater before draining. I have the 4kw 240V element in it, but I doubt it survived.

Those timers are only 30mins max, so I'm thinking that might be a bit short heat up a tank of water... I'm thinking an hour would be better.

Here is one that goes up to 24hrs in 30 min increments:
http://www.leviton.com/OA_HTML/ibeCCtpItmDspRte.jsp?item=9447&section=17138

But looks like it might be a time of day timer, manual is hard to read on-line.

Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that

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Re: [GMCnet] Water heater timer [message #61716 is a reply to message #61713]

Mon, 26 October 2009 08:45

GMCMHRON

Messages: 113
Registered: January 2004

Karma: 0

Senior Member

The digital ones seem to be 1000w/20amps. At 110v, shouldn't it be
watts=volts x amps or 2200watts?

Ron and Julie

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Re: [GMCnet] Water heater timer [message #61717 is a reply to message #61715]

Mon, 26 October 2009 08:50

GMCMHRON

Messages: 113
Registered: January 2004

Karma: 0

Senior Member

I think the locally avaialble (home depot) timer with a relay (I have
several lying around) would work. I could also build in a manual override
switch so that I can keep it on when at a campsite with power or when Julie
throws me out..could be soon!

Ron and Julie

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Re: [GMCnet] Water heater timer [message #61718 is a reply to message #61706]

Mon, 26 October 2009 08:50

Mr ERFisher

Messages: 7117
Registered: August 2005

Karma: 2

Senior Member

here is one GMC solution
http://www.gmcmhphotos.com/photos/showgallery.php?cat=3262

gene

On Mon, Oct 26, 2009 at 7:13 AM, Ron Kazi <gmcmhron@optonline.net> wrote:

> I am in the process of replacing my water heater element. Seem to go every
> two or three years, usually when I forget to shut it off when
>
--
Gene Fisher -- 74-23,77PB/ore/ca
�Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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Re: [GMCnet] Water heater timer [message #61719 is a reply to message #61706]

Mon, 26 October 2009 08:59

RF_Burns

Messages: 2277
Registered: June 2008
Location: S. Ontario, Canada

Karma: 3

Senior Member

Ron,
When working with AC, the load rating depends on the type of load on the switch. Resistive loads such as the water heater vs inductive loads such as a motor.

1000w rating is usually also for lighting which is resistive, but lights have a very high starting current.

I'm an electronics guy so its been 30 yrs since I did much with line voltage. Others on here will correct me.

Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that

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Re: [GMCnet] Water heater timer [message #61721 is a reply to message #61718]

Mon, 26 October 2009 09:10

GMCMHRON

Messages: 113
Registered: January 2004

Karma: 0

Senior Member

Now that is simple but effective.

Being 6'3" and #$^% lbs. I am probably going to mount it on the bulkhead
where the JCV monitor, Honda control and inverter control are mounted. I
actually removed that box when I added the automatic transfer switch and
IOTA circuit breaker and fuse box.

Ron and Julie

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Re: [GMCnet] Water heater timer [message #61722 is a reply to message #61706]

Mon, 26 October 2009 09:15

Charles

Messages: 455
Registered: January 2004

Karma: 0

Senior Member

Picture of timer I installed in 2002. Still working and have
not lost qn eliment since installing the timer.
I usually turn it on for about 10 minutes in the morning.
Gives me at least one tank of hot water. At least this way
the element neverr gets turned on when there is no water
in the tank.
http://www.gmcmhphotos.com/photos/showgallery.php?cat=5234&ppuser=0
Charles

----- Original Message -----
From: "Ron Kazi" <gmcmhron@optonline.net>
To: <gmclist@temp.gmcnet.org>
Sent: Monday, October 26, 2009 9:13 AM
Subject: [GMCnet] Water heater timer

>I am in the process of replacing my water heater element. Seem to go every
> two or three years, usually when I forget to shut it off when draining the
> system. Installing antifreeze bypass at the same time.
>
> Thinking of installing a timer so that it doesn't run all the time. Come
> to the coach after not using it for weeks and find plenty of hot
> water...not
> good.
>
> The mechanical timers seem so...well 70's. Thinking of installing one of
> these. Have used it on my bathroom blowers and on things like cooler
> lights
> at a florist.
>
> http://www.amazon.com/gp/product/B000U3DTXC
>
>
> Anyone have any experience using one on the GMC? Does it handle voltage
> fluctuations, etc.
>
> Ron and Julie
>
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

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Charles Wersal
Duncanville, Texas
26 foot 1975 Glenbrook
Pandora's Box

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Re: [GMCnet] Water heater timer [message #61724 is a reply to message #61722]

Mon, 26 October 2009 09:24

Charles

Messages: 455
Registered: January 2004

Karma: 0

Senior Member

That is a simple attic fan timer. Nothing special. Available at
Home Depot and Lowes for just a few dollars.
http://www.gmcmhphotos.com/photos/showgallery.php?cat=5234&ppuser=0
Charles
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Charles Wersal
Duncanville, Texas
26 foot 1975 Glenbrook
Pandora's Box

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Re: [GMCnet] Water heater timer [message #61727 is a reply to message #61706]

Mon, 26 October 2009 10:01

RF_Burns

Messages: 2277
Registered: June 2008
Location: S. Ontario, Canada

Karma: 3

Senior Member

Back in College I spent the first 3 months calculating the energy required to heat (or cool) water.. (as well as the acceleration of gravity). It pretty much put me off the Electronic course I was taking and I have never used this great wealth of knowledge yet!

I thought maybe today I'd be able to share my knowledge of heating water, but alas a single google search and there is a conversion page without calculating calories etc.
http://www.heateflex.com/html/techtools/TT3.html

Heating 5 gallons of water from 20C to 40C (104F) with a 1kw element will take about 26 minutes, give or take.

Heating it to 120F will take 40 mins.

Bruce Hislop
ON Canada
77PB, 455 Dick P. rebuilt, DynamicEFI EBL EFI & ESC.
1 ton front end
http://www.gmcmhphotos.com/photos/showphoto.php?photo=29001
My Staff says I never listen to them, or something like that

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Re: [GMCnet] Water heater timer [message #61790 is a reply to message #61718]

Mon, 26 October 2009 17:02

Jim White[1]

Messages: 144
Registered: September 2008

Karma: 0

Senior Member

Gene-
I like that timer. Is that a common item?
Jim "Doc" White

Mr.erf ERFisher wrote:
> here is one GMC solution
> http://www.gmcmhphotos.com/photos/showgallery.php?cat=3262
>
> gene
>
>
>
> On Mon, Oct 26, 2009 at 7:13 AM, Ron Kazi <gmcmhron@optonline.net> wrote:
>
>
>> I am in the process of replacing my water heater element. Seem to go every
>> two or three years, usually when I forget to shut it off when
>>
>>
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Re: [GMCnet] Water heater timer [message #61834 is a reply to message #61790]

Mon, 26 October 2009 19:59

Mr ERFisher

Messages: 7117
Registered: August 2005

Karma: 2

Senior Member

yep, just about any hardware or Home Depot.

they come in various times 15 min to 3 hours, It does not take very long to
get the water hot.

gene

On Mon, Oct 26, 2009 at 3:02 PM, Jim White <jameswwhite@cyberwind.net>wrote:

> Gene-
> I like that timer. Is that a common item?
> Jim "Doc" White
>
> Mr.erf ERFisher wrote:
> > here is one GMC solution
> > http://www.gmcmhphotos.com/photos/showgallery.php?cat=3262
> >
> > gene
> >
> >
> >
> > On Mon, Oct 26, 2009 at 7:13 AM, Ron Kazi <gmcmhron@optonline.net>
> wrote:
> >
> >
> >> I am in the process of replacing my water heater element. Seem to go
> every
> >> two or three years, usually when I forget to shut it off when
> >>
> >>
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>

--
Gene Fisher -- 74-23,77PB/ore/ca
�Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

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