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Cast Iron Oil Fired Steam Boiler Williamson-Thermoflo BTU Input 144,000 BTU Output 108,000 AFUE 85% Voltage 115

Item #:OSB-4-P-S3 
Manufacturer Item: OSB-4-P-S3
Manufacturer: WILLIAMSON -THERMOFLO
Williamsom-Thermoflo OSB-4-P-S3 Oil Fired Cast Iron Steam Boiler
OSB-4-P-S3
Williamsom-Thermoflo OSB-3-P-S2-W Cast Iron Residential Oil Fired Steam Boiler, Net AHRI Ratings: Steam (Sq. Ft.) 450, Net AHRI Ratings: Steam (MBH) 108, AFUE 84% Less Coil/Less Burner
  • Factory tested
  • Easy service
  • Factory-assembled cast iron section with built-in air separator assembly, including aluminized steel flue collector, swing-away burner mounting door, with refractory blanket and recessed target wall in combustion chamber
  • Low draft loss
  • Top access cleanout cover
  • Plug-in wiring harness
  • High efficiency flame-retention oil burner
  • Flame retention head design
  • Solenoid valve
  • PSC motor
  • Solid state igniter
  • Rear flue outlet
  • Insulated heavy gauge steel jacket
  • High limit control with circulator relay
  • 15 psig ASME relief valve
  • Drain valve
  • Barometric damper
  • Siphon
  • Gauge glass and guard assembly
  • Pressure gauge
  • Probe low water cut-off
  • 7" flue connection size
  • Limited lifetime warranty on heat exchanger, 3 year limited warranty on parts
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williamson -thermoflo osb-4-p-s3

All Oil Boilers

Brand Name
Williamson -Thermoflo
BTU Input
144000
Type
Cast Iron Oil Fired Steam Boiler
BTU Output
108000
Voltage
115
AFUE
85%
Fuel Type
Oil
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OSB-4-P-S3
Cast Iron Oil Fired Steam Boiler Williamson-Thermoflo BTU Input 144,000 BTU Output 108,000 AFUE 85% Voltage 115
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