New room existing 220v

[reverser]

:oops: I posted this on the old board but I didn't get back to it before the change so here it is again. I am planning on enclosing by back porch. I have 220V at the back wall for a SPA which I will be using but I would like to know if I can wire the new enclosure from this 220. Possibly with a junction panel. I will need enough power to run a 110 v (small air conditioner ) and 4-5 outlets for lamps and sunch plus a overhead fan with a light kit. If this is possible please give me a DIY reference that I may purchase. The project hasn't started yet I have to put a 12" x 12" footing under the existing slab of back porch and get the permit to build the addition. I want to be completely legal.

Thank in advance no matter what the answer whether good or bad news.

[Wgoodrich]

There is two rules that apply that forbid you connecting other loads to a hot tub that you plan to continue using the hot tub.

Article 210.23.A.2 forbids utilization equipment that is rated in amps exceeding 50% of the ampacity of that branch circuit from carrying other loads on that same branch circuit.

Article 680.23.A.2 forbids the required equipment grounding conducotr from being broken from the source to that underwater light fixture of a hot tub except for a switch or a GFI device.

Sorry you must not wire anything else with a hot tub. Hot tubs and swimming pool have a lot of related specialty rules that apply making these installations not compatible with other loads.

Also there is a very good chance that your window air conditioner manufacturing instructions will call for a dedicated branch circuit to this a/c unit. Check with your installation instructions and amp rating of the unit. Good chance you will need a dedicated branch circuit for this window a/c unit.

Most commonly your room addition has a common wall with your existing house. The room adjascent to your room addition can produce the power for your general lighting outlets in your room addition. Often times people opt to install a new branch circuit from the panel either 15 amp or 20 amps from the panel for the general lighting outlets in their room addition and I believe this to be good practice. However the general lighting branch circuit existing in the adjascent room may supply power to that room addition Just tap to a nearby switch in that existing room as a branhc circuit extension. If your adjascent room is not a kitchen, dining, laundry or bathroom then you can tap into one of the existing general use receptacles to provide the branch circuit exstension in your room addition.

You mentioned that you are removing the concete patio and digging a footing for your room addition. There are options such as metal or steel post suspending over your patio placed in holes below the frost line with a concrete foot pad for the supporting steel or treated wood posts that will then support your room addition. This is just a mention of an alternate option in yoru design. If you installed the posts through the concrete pad you may be able to use the concrete pad as your room addition floor if you do your research. Confirm this option with your building inspector. May save you money and time. MY attempt in mentioning this option was not to talk you out of your plan just to open a few options that may help you.

Good Luck

Wg