Efficiency+ High Efficiency Commercial Gas Water Heaters
Efficiency+ water heaters deliver unsurpassed performance, reliability and energy savings, year after year.
84% thermal efficiency
Low NOx certified
Scale-free operation
Loch-Heat™ ceramic tile
Five venting options
We are a leading producer of energy-efficient water heating solutions that are radically simple, brilliantly engineered and perfectly suited for most any application. We focus solely on serving the unique needs of each customer with a product portfolio including boilers, water heaters, pool heaters, cogeneration products and commercial package systems.