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We carry the Williamson- Thermoflo brand of furnaces, boilers, and water heaters. Williamson-Thermoflo brings you over a century of experience with high-quality comfort products. You can count on Williamson and Thermoflo brand heating products to meet your comfort needs.

Wiliamson- Thermoflo heating equipment

 

Choose from: oil_furnaces, BOILERS, or WATER HEATERS.

 

 

 Centennial Series - High Boy Series 2

Oil Furnace

91,000 to 175,000 Btuh Input

 

oil furnace • AFUE's to 85.9%
Heat exchanger - Heaviest in the industry, Front flue with top or right side venting option, Interior baffling for maximum efficiency, Dual spring-loaded clean-out ports for easy service and maintenance, Spring-loaded observation port with test port, Heavy gauge burner mounting plate with studs and nuts.
Blower - Belt drive or multi-speed direct drive, Slide-out blower/motor – easily removed for service.
Cabinet - Appliance finish powder coat paint, Heavy gauge with "Seal-Tite" construction, Foil-faced insulation for hand-cool surface,  Fully-enclosed burner and controls.
Combustion Chamber - Preformed slide-out chamber for easy service.
Burner and controls - Factory-wired with simple plug-in connections, PSC motor, Solid state ignitor.

 Centennial Series - Low Boy Series 2

 Oil Furnace

91,000 to 175,000 Btuh Input

 

oil furnace • AFUE's to 85.9%
Heat exchanger - Heaviest in the industry, Front or rear flue - front flue can be vented from top or right side, Interior baffling for maximum efficiency, Dual spring-loaded clean-out ports for easy service and maintenance, Spring-loaded observation port with test port, Heavy gauge burner mounting plate secured with studs and nuts.
Blower - Belt drive or multi-speed direct drive, Slide-out blower/motor – easily removed for service.
Cabinet - Appliance finish powder coat paint, Heavy gauge with "Seal-Tite" construction, Foil-faced insulation for hand-cool surface,  Fully-enclosed burner and controls.
Combustion Chamber - Preformed slide-out chamber for easy service.
Burner and controls - Factory-wired with simple plug-in connections, PSC motor, Solid state ignitor.

OWB Oil-Fired Water Boiler
0.75 to 2.00 GPH Input
Construction
  • Factory Packaged
  • 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 jacket 
  • Limited lifetime warranty 
Equipment
 
 • Factory-assembled cast iron section assembly,
    including aluminized steel flue collector,
    swing-away burner mounting door, with refractory
    blanket and recessed target wall in combustion
    chamber.
  • Taco 007 circulator   
  • High efficiency flame-retention oil burner
boiler
     (Beckett AFG, Weil-McLain QB, or
     Carlin EZ)
  • High limit control with circulator relay
  • Built-in air separator
  • Combination pressure/temperature gauge
  • 30 PSIG ASME relief valve
  • Drain valve
  • Barometric damper
Optional
  • Two-stage oil burner fuel unit
 
OWT Oil-Fired Water Boiler
0.75 to 2.00 GPH Input With tankless heater
Construction
  • Factory Packaged
  • 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 jacket 
  • Limited lifetime warranty 
 
Equipment
 • Factory-assembled cast iron section assembly,
    including aluminized steel flue collector,
    swing-away burner mounting door, with refractory
    blanket and recessed target wall in combustion
    chamber.
  • Taco 007 circulator   
  • High efficiency flame-retention oil burner
     (Beckett AFG, Weil-McLain QB, or
boiler
     Carlin EZ)
  • High limit control with circulator relay
  • Built-in air separator
  • Combination pressure/temperature gauge
  • 30 PSIG ASME relief valve
  • Drain valve
  • Barometric damper
  • Tankless heater
Optional
  • Two-stage oil burner fuel unit
OSB/T Oil-Fired Steam Boiler
1.00 to 2.00 GPH Input Optional tankless heater
Construction
  • Factory Packaged
  • 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 jacket 
  • Limited lifetime warranty 
 
Equipment
 • Factory-assembled cast iron section assembly,
    including aluminized steel flue collector,
    swing-away burner mounting door, refractory
    blanket and recessed target wall in combustion
    chamber.
  • Flame-retention oil burner
boiler
     (Beckett AFG, Weil-McLain QB, or
     Carlin EZ)
  • High limit pressure control
  • Probe low water cutoff
  • Pressure gauge
  • Siphon
  • Gauge glass, gauge cocks and guards
  • 15 PSIG ASME relief valve
  • Drain valve
  • Barometric damper
Optional
  • Two-stage oil burner fuel unit
  • Tankless heater, shipped in separate carton

water heater
Our Williamson water heaters all have a stainless steel interior tank and a life time warranty to the original purchaser.

Design Features

• Tank within a tank heat exchanger

• Self cleaning

• Polyurethane insulation

• Low pressure drop

• 100% Leak-tested

Easy installation

• Simple wiring and piping

• No separate vent, burner or fuel lines

More hot water

• Twice the peak flow of a tankless coil

• 50% more than gas-fired water heaters

• Three times as much as an electric hot water heater

If you would like to order any of the equipment shown here, please contact us.

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