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  • Heat output: 4.2kW
  • Height: 489mm
  • Width: 395mm
  • Depth: 330mm
  • Approx weight: 70kg
  • Flue Size: 5" (125mm)


  • EcoDesign 2022 Ready
  • DEFRA Approved
  • Large viewing window
  • 2-5kW operating range
  • 76.1% efficiency
  • Ultra-clean burning
  • Low maintenance
  • No delicate complex parts to go wrong
  • Suitable for use on 12mm hearth
  • Generous firebox size
  • Internal Firebox Width - 285mm
  • Internal Firebox Depth - 225mm
  • Max Log Size - 10 inch (255mm)
  • Rear to centre of top flue - 118mm
  • Floor to centre of rear flue - 390mm
  • Distance to Combustibles - 400mm to sides 500mm to Rear









The Saltfire ST-X4 - our compact stove - EcoDesign 2022 Ready.

The smallest of the new ST-X models - the ST-X4 is rated at 4.2kW output.

Constructed from a precision-welded thick steel body with cast iron door and thermo-refractory fire brick inner linings.

Many times cleaner than the required standard for "DEFRA" exemption, it can legally be used anywhere in the UK including the strictest of smoke control zones.

Designed with simple, easy to operate user friendly controls.

Designed with a large viewing window for amazing views of the fire. The flame pattern with the advanced "after-burner" system is quite unique.

The ST-X4 is a multi-fuel stove able to efficiently burn wood logs or smokeless coal - the coal ashes will fall through the grate and into the ash can which easily lifts out when full.

The stove is ready to install, no assembly is required and comes complete with high temperature mitt/glove.

Finished in black high temperature paint which we source from the USA and with thermo-ceramic clear glass from the industry-leading "Schott" brand in Germany.

There is an air-wash system to help keep the glass clearer

The ST-X4 has a 5"(125mm) diameter top and rear flue outlet. Can be used with 5" diameter flue liner or twinwall flue. 

The ST-X4 stove has been developed for use in the strictest of smoke control inner city areas and is fully tested to DEFRA and CE / BS standards.

Each Saltfire stove undergoes meticulous testing and development at our labs in Dorset and then testing at KIWA/Gastec in Cheltenham to be fully compliant with the relevant European and British Standards.

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