The Q90-200 Series II offers a 90% AFUE efficiency rating and features a high efficiency cast aluminum monoblock heat exchanger with a low pressure drop. The boiler also has a Fuel Smart Hydrostat Control which features 3 functions in 1 Control: Temperature Limit Control with easy dial settings and function indicator lights; Low Water Cut-Off (LWCO), which protects the boiler from damaging low water conditions; and Boiler Reset which lowers the boiler temperature to save fuel without sacrificing comfort.
The Q90-200 Series II utilizes economical CPVC and PVC vent pipe and is backed by a Limited 15 Year Warranty.