Starfire IV


The new Starfire IV oil-fired water boiler is available in 9 sizes from 103 MBH to 252 MBH and features a dependable cast iron heat exchanger and a HydroLevel High Limit and Circulator Relay Control with LWCO, digital temperature display and diagnostics.

In the SFH-W IV Less Coil: The HydroLevel control features a Thermal Pre-Purge – Further enhances boiler efficiency by supplying latent heat, that may remain in the boil­er from a previous run cycle, to the heating zone requiring heat. The control activates the burner only when it determines that the latent heat will not be adequate to satisfy the heating demand. The control monitors boiler cycling and saves fuel by adjusting boiler temperature based on demand. The control is Outdoor Reset Ready and will provide outdoor reset and warm weather shutdown with addition of Outdoor Sensor Kit.

In With Coil units: The control operates as a standard High Limit, Low Limit and Circulator Relay control. The new SFH-W IV features a Limited Lifetime Warranty (Residential Applications).


  • Efficiency: Mid-Efficiency
  • Heat Exchanger: Cast Iron
  • Combustion: Atmospheric
  • Venting: Chimney Vent
  • Boiler Type: Hot Water
  • Boiler Controls: Primary Control, High Limit and Circulator Control.
  • Heat Exchanger: Cast Iron Heat Exchanger with Cast Iron Push Nipples. Swing out Burner Door.
  • Combustion: Oil Burner, Target Wall/Liner. Electrical: Wiring Harness, Burner Electrical Disconnect.
  • Other
    • Crated Boiler
    • Flush Jacket
    • Circulator- 1¼”
    • Supply Tapping-2”
    • Return Tapping-1 1/2”
    • Temperature Pressure Gauge
    • Safety Relief Valve
    • Drain Valve

For Tankless Heater Units  add Tankless Hot Water Coil and Triple Combination High Limit/Low Limit/Circulator Control.


  • Taco, Grundfos or Less Pump
  • Tankless Coil

Documents / Resources

Current Documents
Archived Documents

Product Testimonials

  • Modern Design and Efficiency

    Don Shearouse
    Lottsburg, VA