This site was reffered to me from a friend in my trade (which is glass blowing). I have a question, but I preface it with the notion that I am not an electrician.

I'm trying to figure out power for my 3 phase furnace in order to choose the right heating element set.

I think I've gotten my head around most everything but one part:

To figure out watts, I understand the formula is:

P=V*I*1.73

But what I'm confused about is the Amp portion.. is it?:

P=V*<VOLTS DEVIDED BY OHMS>*1.73

or

P=V*<VOLTS DEVIDED BY OHMS TIMES 1.73>*1.73

Though the <VOLTS DEVIDED BY OHMS TIMES 1.73> should be the total current draw, but

I am thinking to figure power, it is the first formula.

If it was the second, the 1.73 would be a factor twice.

Thanks in advance for any comments.

Donovan