A gas heater is an ideal choice for anyone who uses their pool sporadically throughout the year and may only want to heat it occasionally such as when friends are coming over or for the weekend.
Gas heaters come in a number of different sizes and should be sized correctly for the pool and they are generally measured in Mega Joules (Mj) or British Thermal Units (BTU's) for performance. In New Zealand the most common reference is Mj which is a standard for measuring energy, usually in reference to gas usage. Zodiac's range of JXi Gas Heaters come in two sizes, a 200Mj and 370Mj, perfect for all sizes and shapes of pools depending on your requirements and location. They are able to heat spas or up to large pools to 28°C in less than a day*
* Temperature increase time will depend on your location, the starting temperature of your pool water and other conditions such as wind exposure. Contact your local Zodiac Expert for more advice.