Why hot water heaters are so expensive?

Well I don't know that they are so expensive. But I will suggest you as per my personal experience All About the Pipes Plumbing is best for water heater in Charlotte. They offer water heater for affordable price & new water heater installation in residential applications, and can also work with retail and commercial customers to ensure the right size tank is chosen, and that installation is done correctly. So, I hope that you understand and feel free to contact with them.