FTA Series Firetube Steel Boiler



AIRATHERM FTA fire tube boilers are compact powerful units. With a range from 180 to 1600kW there is likely to be an FTA boiler to suit your needs. Utilising hot flue gases from a modulating burner these 3 pass boilers produce how water at 85% efficiency. This can be further by adding a flue recuperator to the system adding up to 7% further efficiency gains.

With a variety of fuel options and the option to weatherproof the units AIRATHERM FTA boilers can be used almost anywhere. 


  • Standard 85% efficiency (to 92% with flue recuperator)
  • 3 Pass wetback design
  • Modulating burner control
  • 500 kPa standard operating pressure
  • Volt free contactors for run flame fail and high limit
  • Relief valve (supplied loose)
  • Pressure and temperature gauges


  • Weatherproof casing     
  • Air Dirt Separator           
  • Dosing pot
  • Special operating pressure up to 1100 kPa
  • Flue recuperator