Note: We will not be held liable for any damages, injury or death caused by proper or improper installation of hot water heaters. All water heaters of any type MUST be installed by a trained and licensed technician. See Terms and Conditions. The warranty may become void if the water heater was not installed by a professional installer. Also warranty may become void if the installer does not have the proper permits for that water heater. A plumber or installer should be consulted on what water heater model can be installed in your home or business.