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1) Hot Springs - JetSetter or Solana TX (dealer 30 min away) 2) Cal Spa - A534 (dealer 30 min the other way) 3) Resort Spa by Artesian - 530L (dealer around the corner)
The Resort Spa is actually a line of spas made by Artesian.Carefully compare filtration.On a spa that size 110v should be fine. If manufacturer does not offer it, you probably are looking at an energy hog spa. You are heating less than 250 gallons.
Artesian and Hot Spring are both very reputable brands - I don't think you could go wrong with either one.In regards to the "Resort" spas, they are owned by Artesian (technically, both brands are manufactured by May Manufacturing of Las Vegas). The warranty is in the owner's manual, which you can download from the Resort web site. It mentions a lifetime warranty on the shell structure (for leaks), a five year surface warranty, and a two year plumbing warranty. I may have missed something, but I didn't see a mechanical warranty (for pumps, heater, etc.). It looks like there may be a blank spot on one page, so it could be that it just didn't upload properly, but you might ask your dealer for a copy of the warranty.