Welcome to AmeriSize, the new online water heater sizing and product selection software from American. You can begin by selecting one of the Application types shown below, and AmeriSize will guide you through the process. Additional tools such as the Payback Calculator are available to further assist in the selection of the best American heater for your project.
The American AmeriSize sizing program is a tool that can be used to estimate water heater requirements for many common applications. AmeriSize is intended to assist in selecting water heaters or boilers that best meet the specific job requirements. It is the sole responsibility of the system designer to select the correct products needed for the specific application. American reserves the right to make changes to AmeriSize without notice.