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Old 05-23-2010, 07:00 PM   #31
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Water Heater last 5 minutes?


Quote:
Originally Posted by Yoyizit View Post
I thought the temperature coefficient of resistance for Nichrome was pretty small, much better than for tungsten.
http://www.allaboutcircuits.com/vol_1/chpt_12/6.html

So how much can you expect for the cold resistance of a 4500w Nichrome element?
How 'bout at cherry red [800 to 1000C]?
I see by the amount of your posts that obviously you are active on this site, and therefore must have a good idea what you are talking about. With me being new to this site, I was wanting to keep it as simple as possible for the normal DIY, so.... I am wondering what all this additional information adds to the conversation? Why not start another thread?

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Old 05-23-2010, 07:10 PM   #32
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Water Heater last 5 minutes?


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Originally Posted by jlew47 View Post
No brainer. Got power to the unit? Buy a new one!
why would you toss the old one if he has heat on the upper element and maybe just needs the lower
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Old 05-23-2010, 07:55 PM   #33
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Water Heater last 5 minutes?


It could also be the lower thermostat in place of a bad element. Either one is much less money and effort than a new heater. But a 10-year old heater is potentially worth replacing at least for knowing it is new.
If you do buy a new one, put a water heater drain pain under it if the old one doesn't have one.
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Old 05-23-2010, 08:00 PM   #34
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Water Heater last 5 minutes?


It only takes about 10 minutes to check the elements. I'll bet the lower is bad
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Old 05-23-2010, 08:12 PM   #35
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Water Heater last 5 minutes?


agree: could try
http://www.inspectapedia.com/plumbin...Hot_Water5.htm
Always turn off electricity when doing this!!!!!!!!!!!!!!!!!!!!

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