I don't see either making a difference. There is no special consideration provided in Article 220 for an electric water heater of any type. At best, a water heater can qualify as one of the 4 appliances fastened in place under 220.53. But that is true regardless of type.when replacing a tank water heater in a dwelling unit with tankless do you calculate load for service same as you would water heater or insta hot.
Ditto!Welcome to the forum
...i.e their branch circuit rating... and has no effect on service load calculation. :roll:According to 422.13, the continuous-load requirement only applies to storage-type (tank) water heaters.
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Oh....i.e their branch circuit rating... and has no effect on service load calculation. :roll:
Yes.when replacing a tank water heater in a dwelling unit with tankless do you calculate load for service same as you would water heater or insta hot.