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Viscount GTS

The cast iron Viscount GTS boiler range is designed to obtain the largest heat exchange surface in the most space efficient size, yet maintain long life and easy servicing. Low modulated temperature operation down to 40°C allows more fuel savings.

A Cast Iron, Pressure Jet Viscount GTS Boiler, Designed to Obtain the Largest Heat Exchange Surface

Features & Benefits

  • 1 year parts and labour warranty
  • Minimal emissions
  • Comprehensive control
  • Gas fired, oil fired or dual fuel
  • Packaged boiler include Nuway, Riello or EOGB as standard (options can be supplied on request)
  • Site assembly
  • Left or right hinged burner door
  • Single phase or 3 phase
  • Quick and simple erection
  • 4 pass cast iron heat exchanger
  • Low temperature return


  • Floor Standing
    Floor Standing
  • 1 Year Warranty
    1 Year Warranty

Standard and Optional kits


  • Flue gas thermometer


For model specifications and downloads please select from models below (if available).

If you wish to download multiple files or forward them on to another individual, please select the files and then click 'Download Selected' button at the bottom of the page to download all selected. Alternatively click on the icon to download individually

Brochures Expand/Close
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Technical Information Expand/Close
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Viscount GTS14 - GTS25 Spec Sheet.pdf
Installation and user guides Expand/Close
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Harrier_Viceroy_Viscount User Guide 203622-2.pdf
Viscount GTS Installation & Servicing 203619-3.pdf