The other type of cover used on above ground pools is a solar cover, also known as a solar blanket. Unlike pool winter covers, solar blankets are not designed to protect the pool but to retain heat and limit evaporation. If you have an above ground pool heater or solar panels, a solar blanket is an especially wise investment. It will protect your above ground pool from heat loss overnight or any time the pool is not in use. This means your heater will run less, saving both money and energy. Installation is very simple since solar covers simply lay on the surface of the pool and are not attached to the pool frame or deck. You may need two people to put on and take off the cover, especially the larger sizes.