What's the difference between a 12v (volt) and 120v fire pit?

According to the all-knowing National Electrical Code (2014, article 68), 12v fire pits may be used within 5 feet of pool water. In contrast, 110v/120v/130v (AKA the voltage in most US homes) and 24v fire pits cannot be used near pool water at all. Let us know if your circumstances are unique, and we'll clarify which option to choose as manufacturers have different recommendations for each design.