Bought 3 of these but only used 2 this one is unused and in original packaging. Does a good job of heating the pool in sunny weather. The Intex Solar Heater Mat for Swimming Pool is a portable unit designed specifically for above ground pools. With a BTUh heating rating of less than 50,000 BTUh, this solar mat is powered by the sun, providing a cost-effective way to warm up your pool. The manufacturer warranty of 1 year ensures peace of mind, while the compact dimensions of 120cm x 120cm make it easy to move and position in your garden. Ideal for Intex brand pools, this solar heater mat is a reliable choice for maintaining a comfortable swimming temperature.