The Q90 Series 4 condensing gas boiler offers a 90% AFUE rating in a small compact design ideal for low clearance/limited space applications. It features a high efficiency cast aluminum heat exchanger with low pressure drop, hot surface ignition (HSI) boiler control and a Hydrolevel combination high limit/low water cutoff control with a boiler water temperature reset feature. A stainless steel premix burner provides corrosion resistance and longevity.
The Q90 is a sealed combustion boiler that is approved for polypropylene venting and includes an induced draft blower with adjustable exhaust (front, right side or rear).
This unit has a 15-year limited warranty.