The installation process will depend on your level of experience with these products and your overall DIY capabilities. In most cases, all it takes to install a solar pool heater is following the instructions provided by the manufacturer. Some heating systems use the existing filtration system, which makes your job easier. Before you purchase a heater, make sure that the installation kit is included. Some manufacturers sell these kits separately, which is why you should double-check before making a purchase. The heating system size will also affect the time it takes to install it, but the general rule is that it shouldn’t take a lot of time and effort.