How to Size Water Heater Wire and Breakers
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- Опубліковано 24 лип 2024
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Really burns me up - I’m not a licensed electrician - yet I’ve done a lot of it, have a degree in electronics and very precise in the work I do. I understand why - just frustrating to be honest because I love doing the work and the sense of accomplishment is priceless.
Sounds like a hold my coffee moment...
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But what was that which burns you up?
I just found your channel and think it’s great. This is like working out a little a day makes you strong.
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I am learning every day. I would have gone with a 30 amp breaker and 10 gauge wire. I wasn’t aware of the fact that 25 amp breakers existed. Thank you for sharing your knowledge.
Yep, before I got into the trade I wasn't aware 25 amp breakers existed, since I've seen 15, 20, 30, 40, 50, and 100 amp breakers, along with 150 and 200 . In the field we use 25 amp fairy often for AC units. 35 and 45 amp breakers, we use as well for air conditioners and heat pumps, the 45 amp not as common. 60 and 70 amp we sometimes use for subpanels. I have seen 90 amp breaker used for a pool heater, though I didn't install that. I've also seen an older house built in the early 1970s with a 175 amp main breaker, there was a mixture of copper and aluminum wiring in the panel. That sums all the odd sizes I've run across.
Perfect timing! Thanks!
Good explanation. Short and sweet. Thanks!
Thank you coach .
Thank u Coach
Great 👍 vid, I just wanted to clarify though if the amp rating is given by the manufacturer they already did the calcs… and you would not need to add the 125% to it?
Most water heaters in residential use # 10 AWG size. Maybe in commercial or industrial you might size it higher depending on the code calculation the nameplate.
Using 10 3 wire four wires what do you do with the fourth wire connecting to the hot water
Since the NEC IS the National code, why do the state and/or local authorities have the right to interpret/modify what the NEC says? I had a case where two different county inspectors inspected my electrical work. The first one failed my work, so I requested a second inspection. The second inspector passed it. I did not make any changes between the two examinations. Is this not an excellent example of 'get two opinions?
LMBO yupp
Because just because the nec is there doesn’t mean that it is the rules and regulations that jurisdictions apply. It’s just a great template.