Welcome to LochSpec Pro-Size, the new online water heater sizing and product selection software from Lochinvar. You can begin by selecting one of the Application types shown below, and LochSpec Pro-Size will guide you through the process. Additional tools such as the Payback Calculator are available to further assist in the selection of the best Lochinvar heater for your project.
The Lochinvar LochSpec Pro-Size sizing program is a tool that can be used to estimate water heater requirements for many common applications. LochSpec Pro-Size 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. Lochinvar reserves the right to make changes to LochSpec Pro-Size without notice.