chris kennedy
Senior Member
- Location
- Miami Fla.
- Occupation
- 60 yr old tool twisting electrician
My wife. She also has every light in the house on so she can see the steam.
Instant hot
- Thread starter aftershock
- Start date
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My wife. She also has every light in the house on so she can see the steam.
aftershock
Senior Member
- Location
- Memphis, TN
Then why cant I run 12/2 for a 4500 watt 240/v water heater on a 20 amp breaker? That's 18.75 amps and I have never known a water heater to run 3 hrs continuous.
stickboy1375
Senior Member
- Location
- Litchfield, CT
Because of 422.13. But does this count for an insta hot as well? They do store water.
M. D.
Senior Member
422.13 tells us storage type water heaters are to be considered a continuous load
izak
Senior Member
- Location
- Springfield, MO
wow, well youve got me there, and a few other people also... thatnks for pointing out 422.13
i retract my previous statements.
i retract my previous statements.
aftershock
Senior Member
- Location
- Memphis, TN
That is a good question but I dont think insta hots have a storage tank.
stickboy1375
Senior Member
- Location
- Litchfield, CT
Why not? They have to store water or the elements would burn up, also its under 120 gals, IMO, your correct at adding 125%.
aftershock
Senior Member
- Location
- Memphis, TN
That is interesting. I have never dealt with insta hots other than providing the outlet for them. I had always thought that there was some switch that sensed water flowing and that triggered the elements to heat up. I base this on the fact that the insta hot does not kick in until water flows. Ofcourse this is an assumption.
izak
Senior Member
- Location
- Springfield, MO
actually alot of tankless heaters are not storage because they do not run until they sense water running thru them..
the only 'tanks' they have are only large enough to house the elements and allow water to pass around them.
most of them will only 'store' less than a half gallon and it is not stored hot. it remains cold until demand for water is applied
the only 'tanks' they have are only large enough to house the elements and allow water to pass around them.
most of them will only 'store' less than a half gallon and it is not stored hot. it remains cold until demand for water is applied
- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
I don't believe an instant hot would constitute a s having a storage tank. Not sure why it wouldn't need 125% tho since a standard storage tank water heater is never on for 3 hours.
What's the difference? I have no idea
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