EV Water Series Boilers ,   Model: DPFO Additional Information With efficiency as high as 87.6%, Dunkirk's oil-fired EV (Extremely Versatile) Series water boiler combines versatility, efficiency and design to make it the ideal choice for heating comfort and reliability. Efficiency: Energy Star Rated Capacity: Without Tankless Coil: Min. 56 - 74 - 93 - 130 - 167 MBH. With Tankless Coil: Min. 62 - 80 - 99 - 117 - 154 MBH. Note:Inputs shown reflect minimums for Energy Star Rated efficiencies. See brochure for input detail(maximums)on mid-efficiency capacities. Heat Exchanger: Cast Iron Combustion: Atmospheric Venting: Side Wall or Vertical Vent Boiler Type: Hot Water Brochure 240005058 - EV Rev. 1/10 672 kb Installation & Operation Manual 1003025 - EV IOM Addendum Rev. 2.0 118.1 kb 14683010 - EV Rev. 3.1 2.9 MB Service & Technical Guide Dunkirk Radiation Tables 96.2 kb Service Bulletin EV Vent Termination Change 12/06 198.5 kb Venting Addendum 240005665 - DPFO REV. 1.2 899.7 kb Warranty 1595019 - DPFO Rev. A 661.1 kb