J Series Hot Water Boilers

The J Series boiler is a three pass reverse flame horizontal firetube hot water boiler suitable for use with liquid and gaseous fuels:


  • Dished furnace back and rear plate
  • The front plate is flanged to eliminate hazardous T-butt welds to the furnace
  • High water volume
  • Anti-scale and anti-condensate design
  • Reversible front door opening
  • Painted steel panels
  • Maximum working pressure: 5 bar Min return water temperature: 55°C

Standard equipment on all boilers

  • High-density insulation
  • Turbolators
  • Cleaning tool

Standard equipment on boilers of output 4000kW and higher

  • Boiler thermometer
  • Boiler manometer
  • 1st safety limit thermostat – manual reset
  • 2nd safety limit thermostat – manual reset
  • Boiler control thermostat
  • Control panel IP55 1~ 230V 50 Hz

Optional Extras

  • Thermostatic control panel
  • Control panel for digital controller of single stage, two stage or modulating burners
  • Calorifier sensor
  • Volt free ki