With this range of high efficiency condensing boilers A.O. Smith aims to introduce a product-line complementary to our efficient water heater solutions. The Epsilon and Upsilon series are mainly applicable in medium to large sized commercial applications, which is also the target area for the high efficiency and solar solutions A.O. Smith offers today.

Product range A.O. Smith boilers

Epsilon - boiler

The Epsilon is a series of 2 boilers: the EB 40 and the EB 50. These are the smallest units in the A.O. Smith heating product-line.

Upsilon - boiler

The A.O. Smith Upsilon series consists of 3 boilers: UB 70, UB 110 and UB 140.

Cascade boiler systems

The Upsilon cascade system is quick and easy to install thanks to the Plug & Play – principle.