Our builder left about 100' ft. Of 6/3 nm-b wire when our house was built. I am hoping I can use it to connect from my basement panel to a spa box.the spa box will be on a suspended, fully covered deck.The deck is about 14 ft off the ground.

I have read that you should never run nm outside and in conduit, however I have also read that if the run from the dwelling to the outdoor panel is short it can be acceptable in NC where I live.

The thought is the nm feeder, once outside, will be just under the deck amd come up through the deck boards and into the spa box. The run will be less than 6ft outside and will be run in 1" conduit.to the box. From the spa box breaker to the hot tub 6/3 THHN in conduit will be used.

Our builder left about 100 ft. of 6/3 nm-b wire when our house was built. I hope I can use it to connect my basement panel to a spa box. The spa box will be on a suspended, fully covered deck about 14 ft off the ground.

I have read that you should never run nm outside and in conduit. However, I have also read that if the run from the dwelling to the outdoor panel is short, it can be acceptable in NC, where I live.

The thought is that the NM feeder, once outside, will be just under the deck and come up through the deck boards and into the spam box. The run will be less than 6 feet outside and will be run in 1" conduit to the box. From the spa box breaker to the hot tub, 6/3 THWN in conduit will be used.