We have designed and installed some wonderful solar heating water system for domestic or commercial use. With additional energy, electricity, fuel, gas, etc, the system can provide constant temperature hot water all year round. The system operates automatically by use an intelligent controller. The closed loop solar heating systems are suitable for areas with questionable water quality and all climate conditions. The closed loop solar heating systems are the preferred option for extremely cold areas. We also can design and install solar system for swimming poor or heating the space.