Thermoflo OSB Series 3 Oil-Fired, Steam Boiler, #OSB-3 thru #OSB-6, 133 MBH to 245 MBH Input

Please Allow 2-3 Days to Ship

OSB Series 2 Thermoflo Spec Sheet

Oil-Fired Steam Boiler

Factory-Packaged

0.95 to 1.75 GPH #2 Fuel Oil

Factory Tested

Probe Type Low Water Cutoff

Easy service

Swing-away burner door

Top access clean out cover

Plug-in wiring harness

High efficiency oil burner

Solenoid valve

PSC motor

Solid state ignitor

Rear flue outlet

Top flue available with optional kit

Cast iron sections

Insulated heavy-gauge steel jacket

Tankless heater option

10 year warranty