Why does a spa entail 3 #8 wires? can i use 2 #12 instead of the #8 nuetral

can i use 2 #12 instead of the #8 nuetral

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Answers:    No, it draws too, much amperage, you will overheat the #12 wires and they will probably catch fire. You must use #8.
You also must use the proper size breaker or like peas in a pod thing can crop up.

Yoda out

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No!
Number 8 wire is much thicker. Your spa draws deeply of current. I would guess 40 or 50 amps. All your wires have to be one and the same size and should be on a dedicated GFI circuit.

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