We've bought a hot tub and are now in the midst of getting estimates on putting in 220.
One electrician told us that the higher amp the better. I read a thread that said you must have the same as the hot tub.? We're confused.
Also, when burying the wire, how deep should the trench be dug?
Sorry if this isn't perfect wording... I'm not educated whatsoever with electricity!
I just don't feel like being cooked like a lobster.
Thanks!:confused:

Guys like this give us a bad name. All depends on what he means by bigger is better.

Size the circuit according to the tub requirements. Most if not all tell you what size the minimum circuit will be according to the NEC Article 680.

Because of distance and typical large load of tubs/spas wire size may need to be larger, but overcurrent and short circuit protection does not need to be extra large.


18 inch deep minimum, many areas require warning tape 12 in below grade above the cable.

Providing the trench for the installer will keep costs down.

Most tubs with electric heaters are going to draw need a 50 amp GFCI breaker. Your tub manufacturer will spell it out on the installation instruction, download if you don't have them. Bigger is better is reserved for certain things, breakers are not one of them.

If a heater is used, Most I see require a pair of #6's, an #8 for neutral, and a 10 for ground, in a 3/4" PVC, you will need GFI Protection. If not sure, you could pull the above, and if it requires less protection, use a smaller breaker, then in the future if you upgrade, you are ready. If money not too much an issue.