96% Thermal efficiency versatile power direct vent.

The Cyclone® Xi™ is a light-duty, power direct vent, fully condensing commercial gas water heater with an internal helical heat exchanger. This helical heat exchanger helps Cyclone® Xi™ achieve 96% thermal efficiency and deliver outstanding hot water output.

Cyclone® MXi Modulating

Modulating burner advances the cyclone® to higher levels of efficiency.

The Cyclone® HE is a light-duty, power vent, fully condensing commercial gas water heater with an internal helical heat exchanger, similar to the design of A. O. Smith's industry-leading Cyclone® models. This helical heat exchanger helps Cyclone® HE achieve 90% thermal efficiency and deliver outstanding hot water output.