The OSB is a cast iron, oil-fired steam boiler. Features include: a high-efficiency flame retention oil burner with PSC motor, solenoid valve, and solid-state igniter; cast iron sections with built-in air separator; an insulated heavy-gauge steel jacket; low draft loss; and easy service capabilities via the swing-away door and top-access cleanout cover, the company says. An optional tankless heater is available.

Williamson-Thermoflo, a unit of United Dominion Industries, Inc., 8155 North 76th St., Milwaukee, WI 53223; 800-736-2378; 414-354-2623 (fax); (e-mail); (website).

eProduct #189

Publication date: 05/21/2001