CaloRex Water Heater

CaloRex is a legacy brand synonymous with hot water in Mexico. Founded in the mid-20th century, it became a market leader through its production of robust and reliable gas tank and tankless water heaters. The brand represents a significant piece of Mexican industrial history, providing essential home comfort for generations.

In 2017, the global water heating giant Ariston Group (then Ariston Thermo Group) acquired CaloRex from Grupo Industrial Saltillo (GIS) to strengthen its presence in North America and Latin America. Today, CaloRex products are primarily manufactured in Mexico, specifically in plants located in Saltillo, Coahuila, maintaining their local heritage while benefiting from Italian engineering and global sustainability standards under Ariston's ownership.