85% AFUE efficiency
• Atmospheric combustion
• Chimney or horizontal vent venting
• Inducer fan and gas valve modulate for operation between 33% and 100% of capacity for fuel economy
• Advanced controls - Digital display with temperature indication, diagnostics and status symbols showing - heating mode, burner on and burner modulation level, DHW mode
• Durable lightweight one-piece steel jacket
• Dedicated DWH connections for adding an indirect water heater
  
  

  dunkirk dwb-chb130

ECR International DWB-CHB100

Olsen DXL615003240503

• Innovative, efficient and dependable boiler
• Temperature limit with LED display and easy dial settings, diagnostic and function indicator lights
• Low water cut-off (LWCO), protects the boiler from damaging low water conditions
• Boiler reset, lowers the boiler temperature to save fuel by turning on the burner only when needed, setup is quick with no need to install an outdoor sensor, just dial in the number of heating zones
• Textured paint jacket with easy service access
• Boiler control module - recessed fuel smart hydrostat temperature limit, LWCO and boiler reset control with circulator relay and domestic hot water input override
• User display interface - temperature LED display with dial-type settings and diagnostic indicator lights
• Heat exchanger - cast iron sections with cast iron push nipples
• Combustion - completely installed and wired gas control system with burners and manifold consisting of stainless steel burners, automatic redundant combination gas valve, 24 volt intermittent pilot control, continuous retry 100% shut-off, combination pilot burner/electrode/sensor
• 24 volt transformer
• Flame roll-out safety shut-off and manual reset blocked vent safety shut-off
• Boiler jacket, integral draft diverter, combination temperature and pressure gauge
• Circulator pump, 3/4" drain valve, 30 lb ASME relief valve
• 15 air cushion tank, 2-burner
• The integral draft hood reduces the overall height and footprint of the boiler making it ideal for low clearance/space limited installations
• Cast to last 20 years non-prorated limited warranty

Dunkirk DXL306003240303

Olsen DXL306003240503

Boiler Control Module: Hydrolevel Fuel Smart HydroStat Control - combination Low Water Cut Off with boiler temperature reset and circulator control.
• User Display Interface: Digital display with easy to set dial-type limit settings.
• Heat Exchanger: High efficiency, cast iron, 3-pass design with reversible swing door and target wall.
• Efficiency baffles/liner by model.
• Combustion: Oil burner with protective cover, flexible oil line.
• Electrical: Wiring harness with Molex connectors.
• Burner electrical disconnect.
• Other: Temperature/pressure guage, 3/4 ASME relief valve, drain valve.
• Textured painted steel jacket.,3
  
  

  Dunkirk EXB407530240303

Dunkirk EWC410031240103

Dunkirk EWC410032240103

ECR International Heating Parts FE3980B851

ECR International H2OIG40DK

ECR International H2OIG50DK

Stainless steel dip tube
• Thermoplastic jacket, low pressure drop
• Temperature and pressure valve, stainless steel aquastat well and drain valve (factory installed-taped and doped)
• Large diameter, smooth coil heat exchangers - prevent build-up
• Magnesium anode rod, 2.25" EPS insulation
  
  

  ECR International H2OI40DK