Home » Public Forums » GMCnet » Water heater timer
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Re: [GMCnet] Water heater timer [message #192264 is a reply to message #192247] |
Wed, 05 December 2012 06:43 |
jhbridges
Messages: 8412 Registered: May 2011 Location: Braselton ga
Karma: -74
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That sounds about right for mine. On hot show days I arise around 6A, and swap from A/C to water heater. Start the coffe, dress, by now there's a cup brewed, walk the dog and return to the coach. It's getting stuffy, so I swap back to A/C. In that time period the heater has the water up to scalding to wash the breakfast dishes.
--johnny
'76 23' transmode norris
'76 palm beach
From: Dennis Sexton <dennisfsexton@aol.com>
To: gmclist@temp.gmcnet.org
Sent: Tuesday, December 4, 2012 10:15 PM
Subject: [GMCnet] Water heater timer
Since this was brought up in a different thread --- I started a new one... with a link to an older thread on the timer.
Seems it might take 40 minutes to heat 6 gallow to about 120 degree F, so a one hour timer might all you ever want.
Wally gives part numbers in the old thread...
http://gmc.mybirdfeeder.net/GMCforum/index.php?t=msg&goto=61722&rid=904&srch=water+heater+timer#msg_61722
Dennis
--
Dennis S
73 Painted Desert 230
Germantown, TN
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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
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Re: [GMCnet] Water heater timer [message #192265 is a reply to message #192264] |
Wed, 05 December 2012 06:57 |
Mr ERFisher
Messages: 7117 Registered: August 2005
Karma: 2
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Here is an old example
http://gmcmotorhome.info/living.html#timer
gene
On Wed, Dec 5, 2012 at 4:43 AM, Johnny Bridges <jhbridges@ymail.com> wrote:
> That sounds about right for mine. On hot show days I arise around 6A, and
> swap from A/C to water heater. Start the coffe, dress, by now there's a
> cup brewed, walk the dog and return to the coach. It's getting stuffy, so
> I swap back to A/C. In that time period the heater has the water up to
> scalding to wash the breakfast dishes.
>
> --johnny
> '76 23' transmode norris
> '76 palm beach
>
> From: Dennis Sexton <dennisfsexton@aol.com>
> To: gmclist@temp.gmcnet.org
> Sent: Tuesday, December 4, 2012 10:15 PM
> Subject: [GMCnet] Water heater timer
>
>
>
> Since this was brought up in a different thread --- I started a new one...
> with a link to an older thread on the timer.
>
> Seems it might take 40 minutes to heat 6 gallow to about 120 degree F, so
> a one hour timer might all you ever want.
> Wally gives part numbers in the old thread...
>
>
> http://gmc.mybirdfeeder.net/GMCforum/index.php?t=msg&goto=61722&rid=904&srch=water+heater+timer#msg_61722
>
> Dennis
> --
> Dennis S
> 73 Painted Desert 230
> Germantown, TN
> _______________________________________________
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--
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 #192276 is a reply to message #192270] |
Wed, 05 December 2012 09:09 |
k2gkk
Messages: 4452 Registered: November 2009
Karma: -8
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Yes, BUT! It's made for only a 2-conductor circuit.
You need to have one of similar amperage rating
but with the 3-conductor (with safety ground) wiring.
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
~~ ~ D C "Mac" Macdonald ~ ~~
~ ~ Amateur Radio - K2GKK ~ ~
~ ~ USAF and FAA, Retired ~ ~
~ ~ ~ Oklahoma City, OK ~ ~ ~
~~ ~ ~ "The Money Pit" ~ ~ ~~
~ ~ ~ ~ TZE166V101966 ~ ~ ~ ~
~ ~ ~ '76 ex-Palm Beach ~ ~ ~
~ www.gmcmhphotos.com/okclb ~
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
______________
*[ ]~~~[][ ][|\
*--OO--[]---O-*
> From: markbb1@netzero.com
> Date: Wed, 5 Dec 2012 08:03:30 -0600
> Subject: Re: [GMCnet] Water heater timer
>
> Robert Mueller wrote on Wed, 05 December 2012 02:30
> > Mickey,
> >
> > The element in the water heater is 1500 watts, how many 1500 watt light bulbs do you have in your house? ;)
> >
> > Regards,
> > Rob M.
>
>
> This cheap timer says 15A. That'd be 1800 watts on 120VAC.
>
> http://www.amazon.com/Sylvania-SA105-Table-Lamp-Timer/dp/B000DT8OVA/ref=pd_sxp_redirect
> --
> '73 23' Sequoia
> UA (Upper Alabama)
> "Time is money. If you use YOUR time, you get to keep YOUR money."
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Re: [GMCnet] Water heater timer [message #192355 is a reply to message #192261] |
Thu, 06 December 2012 01:27 |
mickeysss
Messages: 1476 Registered: January 2012
Karma: 0
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picky picky picky, you are right again. mick :-)
regards, your right. maybe a sprinkler timer
mickey
77 palm beach
anaheim ca.
here is one 25 amps,
http://www.zorotools.com/g/00055241/k-G3005913?utm_source=google_shopping&utm_medium=cpc&utm_campaign=Google_Shopping_Feed&kw=%7Bkeyword%7 D&gclid=CL36o5-fhbQCFSXZQgodgRQAJA
On Dec 5, 2012, at 12:32 AM, Rob Mueller wrote:
> Mickey,
>
> The element in the water heater is 1500 watts, how many 1500 watt light bulbs do you have in your house? ;-)
>
> Regards,
> Rob M.
>
> -----Original Message-----
> From: Mickey Space Ship Shuttle
>
> a rotor timer for say a lamp that goes on in the morning for one hour and after noon for one hour type to the water heater
>
> as long as it has power all day, this would work and only be on when it has power and for only the amount of time you set.
>
> mickey
>
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Re: [GMCnet] Water heater timer [message #192357 is a reply to message #192355] |
Thu, 06 December 2012 02:42 |
powerjon
Messages: 2446 Registered: January 2004
Karma: 5
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Senior Member |
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Mickey & Rob,
This timer might be a little too much over kill. A 1500 watts heater element using 120 VAC will draws a little over 7.2 amps at load. The one Bruce uses is available for under $20 bucks and most big box stores carry similar units.
< http://www.lowes.com/ProductDisplay?partNumber=141224-89916-TM-029-1&langId=-1&storeId=10151&productId=3563406&catalogId=10051&cmR elshp=req&rel=nofollow&cId=PDIO1>
or
http://goo.gl/4idMi
< http://www.lowes.com/ProductDisplay?partNumber=140599-207-TMSW60MWL&langId=-1&storeId=10151&productId=3446612&catalogId=10051&cmRe lshp=req&rel=nofollow&cId=PDIO1>
or
http://goo.gl/cxtk4
< http://www.lowes.com/ProductDisplay?partNumber=311473-207-TMSW30MS&langId=-1&storeId=10151&productId=3387086&catalogId=10051&cmRel shp=req&rel=nofollow&cId=PDIO1>
or
http://goo.gl/pXQMt
All these are rated at 20 amps Max load. I thing that the mchical ones would be more bullet proof.
JR Wright
78 Buskirk Stretch
Michigan
On Dec 6, 2012, at 2:27 AM, Mickey Space Ship Shuttle wrote:
>
> picky picky picky, you are right again. mick :-)
>
> regards, your right. maybe a sprinkler timer
>
> mickey
>
> 77 palm beach
>
> anaheim ca.
>
> here is one 25 amps,
>
> http://www.zorotools.com/g/00055241/k-G3005913?utm_source=google_shopping&utm_medium=cpc&utm_campaign=Google_Shopping_Feed&kw=%7Bkeyword%7 D&gclid=CL36o5-fhbQCFSXZQgodgRQAJA
>
> On Dec 5, 2012, at 12:32 AM, Rob Mueller wrote:
>
>> Mickey,
>>
>> The element in the water heater is 1500 watts, how many 1500 watt light bulbs do you have in your house? ;-)
>>
>> Regards,
>> Rob M.
>>
>> -----Original Message-----
>> From: Mickey Space Ship Shuttle
>>
>> a rotor timer for say a lamp that goes on in the morning for one hour and after noon for one hour type to the water heater
>>
>> as long as it has power all day, this would work and only be on when it has power and for only the amount of time you set.
>>
>> mickey
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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Re: [GMCnet] Water heater timer [message #192363 is a reply to message #192361] |
Thu, 06 December 2012 07:21 |
Mr ERFisher
Messages: 7117 Registered: August 2005
Karma: 2
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Senior Member |
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On Thu, Dec 6, 2012 at 5:02 AM, Matt Colie <matt7323tze@gmail.com> wrote:
>
>
> I guess I am still wondering what the value is of adding this timer.
Here were my reasons 10 years ago
http://gmcmotorhome.info/living.html#timer
Often there is no water in the HW tank when the coach is plugged in...
and the element is toast...
I often forget to turn on and off the lights, let alone hidden switches for
HW and stove tops :>)
Many items are left on, by mistake and several coaches have burned down
when the
electric stove top burners were on by mistake when the coach was plugged in.
JWID
gene
> Chaumière is a later '73 and the water heater may have been replaced but,
> when we are traveling we usually hold up late and have dinner. The next
> morning water is still warm enough to shower (in non-winter temperatures).
> If we are at a campground with electric, I don't much care if the water
> heater is on. When we are at home with the coach on shore power, I often
> shut the heater down and power it up during loading for the next excursion.
>
> Now, I did separate the water heater from the galley receptacle circuit so
> the microwave and the water heater don't load the same breaker, but I
> though that design FU was limited to '73 builds. If your coach has the WH
> on a shared circuit, you can probably fix it (as I did) for the price of a
> duplex breaker and a little wire rearrangement.
>
> Matt
> --
> Matt & Mary Colie
> '73 Glacier 23 Chaumière (say show-me-air) Just about as stock as you will
> find
> SE Michigan - Twixt A2 and Detroit
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--
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: Water heater timer [message #192365 is a reply to message #192247] |
Thu, 06 December 2012 07:39 |
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RF_Burns
Messages: 2277 Registered: June 2008 Location: S. Ontario, Canada
Karma: 3
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Matt,
The main reason I installed was to prevent burning out W/H elements.
My original one was burned out which we found out on the first camping trip. The second and third one each lasted a month. My pump's check valve must leak back once the pressure drops and drains slowly out the cold inlet back to the holding tank when the pump is off.
Also, I constantly forgot to turn off the W/H when I plugged the coach in at home.
The water seems to recover fast enough in 20 mins or so to get a couple warm showers out of it and washing breaky dishes.
The mechanical 60 minute timer means I don't have to set the clock each time we plug in as well.
My next timer installation will be for my refrigerator. Like Matt, we have a standard electric fridge in the coach. When I switch from shore power to inverter, or vice versa, the compressor stops momentarily. When the power is re-applied the compressor motor can't restart so its stalled until the overload kicks out. I have an Omron timer lying around which I am going to setup as a delay-ON, so that when power is applied the timer will wait 5 minutes or so for the compressor pressures to equalize before applying power to the compressor.
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 #192386 is a reply to message #192377] |
Thu, 06 December 2012 11:37 |
powerjon
Messages: 2446 Registered: January 2004
Karma: 5
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Senior Member |
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Mac,
You are correct, the online program that I had used originally indicated the previous mentioned answer. I blindly followed its answer. I did not look at the formula used. I should have used W/V=A. Even so the units listed are rated for a 1500 W element.
JR Wright
78 Buskirk Stretch
Michigan
On Dec 6, 2012, at 11:39 AM, D C _Mac_ Macdonald <k2gkk@hotmail.com> wrote:
>
> Au contraire! Ohm's Law and related rules
> state that a 1500 Watt load will draw 12.5
> Amperes from the 120V AC line. That does
> NOT include the draw from any fan included
> in the heater.
>
> ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
> ~~ ~ D C "Mac" Macdonald ~ ~~
> ~ ~ Amateur Radio - K2GKK ~ ~
> ~ ~ USAF and FAA, Retired ~ ~
> ~ ~ ~ Oklahoma City, OK ~ ~ ~
> ~~ ~ ~ "The Money Pit" ~ ~ ~~
> ~ ~ ~ ~ TZE166V101966 ~ ~ ~ ~
> ~ ~ ~ '76 ex-Palm Beach ~ ~ ~
> ~ www.gmcmhphotos.com/okclb ~
> ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
> ______________
> *[ ]~~~[][ ][|\
> *--OO--[]---O-*
>
>
>
>
>
>
>> From: powerjon@chartermi.net
>> Date: Thu, 6 Dec 2012 03:42:21 -0500
>> To: gmclist@temp.gmcnet.org
>> Subject: Re: [GMCnet] Water heater timer
>>
>> Mickey & Rob,
>> This timer might be a little too much over kill. A 1500 watts heater element using 120 VAC will draws a little over 7.2 amps at load. The one Bruce uses is available for under $20 bucks and most big box stores carry similar units.
>>
>> < http://www.lowes.com/ProductDisplay?partNumber=141224-89916-TM-029-1&langId=-1&storeId=10151&productId=3563406&catalogId=10051&cmR elshp=req&rel=nofollow&cId=PDIO1>
>> or
>> http://goo.gl/4idMi
>>
>> < http://www.lowes.com/ProductDisplay?partNumber=140599-207-TMSW60MWL&langId=-1&storeId=10151&productId=3446612&catalogId=10051&cmRe lshp=req&rel=nofollow&cId=PDIO1>
>> or
>> http://goo.gl/cxtk4
>>
>> < http://www.lowes.com/ProductDisplay?partNumber=311473-207-TMSW30MS&langId=-1&storeId=10151&productId=3387086&catalogId=10051&cmRel shp=req&rel=nofollow&cId=PDIO1>
>> or
>> http://goo.gl/pXQMt
>>
>> All these are rated at 20 amps Max load. I thing that the mchical ones would be more bullet proof.
>>
>> JR Wright
>> 78 Buskirk Stretch
>> Michigan
>
> _______________________________________________
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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Re: [GMCnet] Water heater timer [message #192541 is a reply to message #192357] |
Sat, 08 December 2012 01:10 |
mickeysss
Messages: 1476 Registered: January 2012
Karma: 0
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Senior Member |
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thank you, my picky comment was a joke by the way. i like picky. i will print this out for choice list.
mickey
77 palm beach
anaheim ca.
On Dec 6, 2012, at 12:42 AM, John Wright wrote:
> Mickey & Rob,
> This timer might be a little too much over kill. A 1500 watts heater element using 120 VAC will draws a little over 7.2 amps at load. The one Bruce uses is available for under $20 bucks and most big box stores carry similar units.
>
> < http://www.lowes.com/ProductDisplay?partNumber=141224-89916-TM-029-1&langId=-1&storeId=10151&productId=3563406&catalogId=10051&cmR elshp=req&rel=nofollow&cId=PDIO1>
> or
> http://goo.gl/4idMi
>
> < http://www.lowes.com/ProductDisplay?partNumber=140599-207-TMSW60MWL&langId=-1&storeId=10151&productId=3446612&catalogId=10051&cmRe lshp=req&rel=nofollow&cId=PDIO1>
> or
> http://goo.gl/cxtk4
>
> < http://www.lowes.com/ProductDisplay?partNumber=311473-207-TMSW30MS&langId=-1&storeId=10151&productId=3387086&catalogId=10051&cmRel shp=req&rel=nofollow&cId=PDIO1>
> or
> http://goo.gl/pXQMt
>
> All these are rated at 20 amps Max load. I thing that the mchical ones would be more bullet proof.
>
> JR Wright
> 78 Buskirk Stretch
> Michigan
>
> On Dec 6, 2012, at 2:27 AM, Mickey Space Ship Shuttle wrote:
>
>>
>> picky picky picky, you are right again. mick :-)
>>
>> regards, your right. maybe a sprinkler timer
>>
>> mickey
>>
>> 77 palm beach
>>
>> anaheim ca.
>>
>> here is one 25 amps,
>>
>> http://www.zorotools.com/g/00055241/k-G3005913?utm_source=google_shopping&utm_medium=cpc&utm_campaign=Google_Shopping_Feed&kw=%7Bkeyword%7 D&gclid=CL36o5-fhbQCFSXZQgodgRQAJA
>>
>> On Dec 5, 2012, at 12:32 AM, Rob Mueller wrote:
>>
>>> Mickey,
>>>
>>> The element in the water heater is 1500 watts, how many 1500 watt light bulbs do you have in your house? ;-)
>>>
>>> Regards,
>>> Rob M.
>>>
>>> -----Original Message-----
>>> From: Mickey Space Ship Shuttle
>>>
>>> a rotor timer for say a lamp that goes on in the morning for one hour and after noon for one hour type to the water heater
>>>
>>> as long as it has power all day, this would work and only be on when it has power and for only the amount of time you set.
>>>
>>> mickey
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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