Williamson-Thermoflo OWB4-S3 Oil-Fired Water Boiler

Burner not included. - The highly efficient OWB-4-T-S3-W is 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 temperature limit control, cast-iron sections with built-in separator ...Burner not included.

- The highly efficient OWB-4-T-S3-W is 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 temperature limit control, cast-iron sections with built-in separator, and an insulated heavy-gauge steel jacket. Specs - Burner Input: 1.00 GPHMBH: 140Heating Capacity MBH: 122Net Ratings MBH: 106Seasonal Efficiency AFUE%: 86.2%Flue Outlet Diameter: 7Minimum Chimney Size (Rectangle): 8 x 8Minimum Chimney Size (Round): 6Draft Loss Through Boiler: 0.010 Inches W.CApprox.

- Approx. - Circulator Flange Size (Recommended Supply & Return Pipe Size, NPT): 1-1/4Features0.70 to 1.75 GPH Input - Factory tested - Easy service - Swing-away burner door - Low draft loss - Top access cleanout cover - Plug-in wiring harness - High efficiency oil burner - Flame retention head design - Solenoid valve - PSC motor - Solid state ignitor - Rear flue outlet - Cast iron sections with built-in air separator - Insulated heavy-gauge steel jacketDownloadsSpecificat