When it comes to buying solar water heating systems, they can be either active or passive; but the most common ones are the active systems. Active solar water heating systems use heat pumps while passive systems operate on thermo-siphon or gravity. Northern Lights solar solutions are dedicated to provide applications based on active solar water heating systems with pumps and controllers designed specifically for the use in the solar industry. Solar water heating systems usually do much more than just heating water inside your home. Using the vacuum tubes, solar thermal heating can be utilized in many more applications. Residential heating, space heating, solar air conditioning and commercial solar heating are some of the applications where solar thermal energy is used. Around $1000s government grants and low interest loans are provided in North America. This is why solar thermal heating has become the fastest growing energy alternative in the United State