"Uncover warm possibilities" with Williamson-Thermoflo's OSB oil fired steam boiler. The efficient OSB-4-P-S2-W-W pumps out 144,000 BTUs with a thermal efficiency rating rating of 84 percent. The OSB is also designed with a solenoid valve, PSC motor, and a solid state igniter to maintain that efficiency. This boiler is equipped with many features, such as a plug-in wiring harness, cast-iron sections, and an insulated heavy-gauge steel jacket. The OSB is also easily serviced with a swing-away burner door and top access cleanout cover. Since it is factory tested and comes with a limited 10 year warrant on cast iron sections, you can be absolutely sure that your investment is reliable and built to last.
OSB boilers are factory tested, ensuring reliability and properly functioning equipment.
OSB boilers are factory packaged meaning that the boiler comes to you mostly assembled and ready for installation.
With a swing-away burner door, top access cleanout cover, and plug-in wiring harness, servicing the OSB boiler easy.
10 Year Warranty
A limited 10 year warranty on the cast iron sections means that you can rest assured that your investment is covered, should there be a problem.
This boiler does not include a burner