When shopping for a hot tub, you face dozens of decisions, and one of the largest purchase decisions is whether to buy a 110V hot tub or a 220V hot tub.

Use this list of spa and hot tub manufacturers in North America to find the contact information for your spa, or to read a little bit about the company.

Nowadays, most spas and hot tubs are heated with an electric heating element tucked into a stainless steel tube. But the question is, which type of hot tub heater is best — gas or electric?