Innovative. Efficient. Dependable. Dunkirk. Innovative. Efficient. Dependable. Dunkirk.

ESC Empire II Steam Series Boiler

The Empire Steam ESC oil-fired steam boiler now offers improved efficiency and reliability with a redesigned heat exchanger and protective heat shield, as well as an electronic low-water cutoff. The model ESC-365S and model ESC-4100S are now EnergyStar rated! 

  • Up to 85% AFUE rating makes this an energy-efficient heating system
  • Newly redesigned heat exchanger with modified pin deck and patent-pending protective heat shield baffle for enhanced heat transfer and increased longevity
  •  Electronic low-water cutoff for safety
  • We repositioned the brass sight glass and pressure-switch piping to give more room for the factory-mounted electronic low-water cutoff.
  • New service switch, wired with the installer in mind
  • Cast-iron swing door for easy service
  • Recessed target wall for great efficiency
  • Tankless heater option - Great for retrofits
  • Long-life, wet-based, cast-iron heat exchanger
  •  Watertight, cast-iron push nipples - A classic design

Energy Star Rated

65 - 100 - 125 - 150 - 175 - 200 - 225 - 275 MBH

Heat Exchanger:
Cast Iron


Vertical Vent

Boiler Type:

Installation & Operation Manual
Product Bulletin
Service & Technical Guide