This solar hot water calculator is designed to provide a rough estimate of what kind of solar thermal system would make sense for your home.  It is not designed for businesses (since the volumes and use case of domestic hot water are so different) and it also shows the most conservative price we can offer.  A formal solar thermal proposal is likely to have a lower price tag than what you see in this tool.  Use it for fun and informative purposes, and contact us if you want to learn more!

Also note that we design and install systems in New England, USA, where winters are brutal.  If you are designing a system for warm weather environments you may be able to install a less expensive system (as it will not need to be as robust).