Solar Storage Tanks are a very important aspect of any solar heating system. The solar water tank is the battery of the system. It is used to store the thermal heat energy until it is needed. A good solar strorage tank should be well insultated. It is also important that it has the proper UL and CSA certifications to be used with domestic water. A solar water tank should also have internal heat exchangers to maximize the heat transfer to the solar system and water. Our solar heating packages come pre sized with the appropriate solar storage tank.