Sun Command Solar Heating Panel (1.25m x 3m)Description: Maximise the suns energy and take the chill out of your pool when installing this chemical resistant, durable 1. 25m x 3m Sun Command solar panels. Use an average of 1 x solar panel per 10,000lts of pool water. Solar heating is inexpensive and leaves no carbon footprint, with water being heated by the sun as it flows through the solar panels before it is returned to the pool. Solar Panels can increase the temperature of your by up to 40%,