According to Section 680.22 of the National Electric Code, if you plan to install your Fire Feature in or within 5 feet of a swimming pool or spa, it is mandatory to utilize equipment that does not exceede 30 Volts DC.
That's where the Swimming Pool Certified Kit Upgrade comes in. Your unit will be fitted with a 30 Volt DC Power Supply and Electronic Ignition System (30 V DC) that Fire by Design requires for features within 5 feet of a pool or spa. Fire by Design also requires the gas line to be bonded at each 30 Volt DC fire feature, and the power supply must be installed at least 10 feet from the pool.