"Uncover warm possibilities" with Williamson-Thermoflo's GWI Gas Water Induced-Draft boiler. The highly efficient GWI-158-N-T-S2 pumps out 158,000 BTUs with an AFUE (annual fuel utilization efficiency) rating of 82.4 percent. Not only is the GWI efficient, but it is also versatile with the induced-draft design that allows for chimney or sidewall venting. This factory-packaged boiler has many features; like a compact design, cast-iron sections with built-in air separator, hot surface ignition system, and an insulated heavy-gauge steel jacket. The GWI is also easily serviced with all controls in reach, color-coded wiring, and a one-piece access door. Since it is factory tested and comes with a limited lifetime warranty, you can be absolutely sure that your investment is reliable and built to last.
GWI boilers are factory tested, ensuring reliability and properly functioning equipment.
With all controls in reach, one-piece access door, and color-coded wiring, servicing the GWI boiler easy.
Limited Lifetime Warranty
A limited lifetime warranty on the heat exchanger means that you can rest assured that your investment is covered, should there be a problem.
Multiple Venting Options
Induced-draft design provide you with many options for your boiler by allowing for sidewall or chimney venting.
GWI's combact design allows for installation is tight or small spaces.
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