They are made of black polyethylene. The systems consist of either parallel tubes laid between header pipes, or circular coils. Coil systems must be limited in size to ensure adequate water flow. An average pool may therefore require a number of coils. Tube systems are best suited to flat roofs, as they usually require a large roof area and sloping roofs can cause them to shift due to their weight.
Frost protection is needed for tube systems to prevent pipes from freezing and splitting.
Many tube collectors may have a reduced lifespan, as some are made of material which is not sufficiently protected against ultra violet light. Gas boosting Your solar pool heating system can be backed up by a gas pool heater which will provide heat when there is insufficient sunlight available. When the collector can no longer provide adequate heat from solar energy alone, the controller automatically switches off the solar pump and activates the gas heater, circulating water through it and back into the pool. Pool blankets One very cost effective and environmentally friendly way of maximising the efficiency of your solar pool is to invest in a pool cover. During the day your pool is kept relatively warm by the sun, but at night both heat and water are lost.