Condensing Boilers

HeatMaster C, TC

HeatMaster 120 TC

Gas fired Condensing combined boiler and water heater

# 05652601

  • Gas
  • Boilers
  • Standard
  • Concentric
  • Floor installation
  • Equipped with the ACVMax burner and modbus controls.
  • Total Condensing unit - condenses in both heating and hot water mode.
  • Can provide heating and hot water or as a stand alone hot water generator.
  • Can deliver an exceptional peak and continuous volumes of hot water.
  • Stainless Steel domestic hot water tank - no glass lined steel or anode protection required.
  • Space saving footprint - Heating and hot water from one unit reduces plantroom space requirements.
  • Stainless steel heat exchanger reduces maintenance and can increase system lifespan.
  • Floor standing boiler with large volume of primary water, ideal for existing heating systems.
  • Multiple units can be linked for larger applications or back up
  • Can be installed along with Prestige heat only boilers or Smartline cylinders to provide a perfect solution to your heating and hot water requirements.
  • Vented or unvented use - Mains systempak available
  • Available in Natural gas and LPG
  • Also available in 25-35-45kW.


  1. Concentric flue gas/air inlet box
  2. Flue gas exhaust tube
  3. Combustion chamber
  4. Stainless steel heat exchanger
  5. Stainless steel “Tank-in-Tank” hot water production tank
  6. Primary circuit separation disc
  7. Indirect water pre-heater
  8. Condensate recovery dish
  9. High efficiency circulator pump
  10. Pressure sensor
  11. NTC sensor heating circuit
  12. Electrical panel (with spare fuses at the back)
  13. ACVMax Control panel
  14. DHW tank dry well (Sparge tube with temperature sensor)
  15. Automatic air vent
  16. Gas pipe
  17. Gas valve
  18. Connection for DHW safety valve (to be installed)
  19. Modulating air/gas premix burner with fan
  20. Air inlet


Capacity (total) 315 L
Heating surface DHW tank 3,4 + 0,9
Capacity (domestic hot water) 190 L
Connection - DHW 1 M inches
Height when tilted 2277 L/h
Max operating temperature 87 °C
Max service pressure (DHW) 8,6 bar
Max service pressure heating (primary) 3 bar
Weight (empty) 299 kg

Hot water performances

Peak flow at 40°C 900 L/10’
Peak flow 1st hour at 40°C 3620 L/60’
Continuous flow at 40°C 3402 L/h
Peak flow 1st hour at 45°C 3098 L/60’
Continuous flow at 45°C 2928 L/h
Peak flow at 60°C 440 L/10’
Peak flow 1st hour at 60°C 1847 L/60’
Continuous flow at 60°C 1754 L/h
Pre-heating time from 10 to 80°C (Heat source: boiler) 23 min
Input max (heating) LCV 115 kW
Input max (heating) HCV 127,7 kW
Output power max (80/60°C) 111,6 kW
Output power min (80/60°C) 24,3 kW
Efficiency at 30% load (EN677) 108 %
Connection - heating 6/4 F Ø inches
Connection gas 3/4 M Ø inches
Water pressure drop boiler at Δt = 20°C 27 mbar
Gas flow rate (max output) 12 m³/h
Gas flow rate G25 (max output) 14 m³/h
Chimney connection 100/150 Ø mm
Voltage 230 V
Protection IP 30
Electrical consumption 327 W
NOx emissions max output 48 mg/kWh
Dim. - Depth (w/o conn.) 753 mm
Dim. - Height (w/o conn.) 2170 mm
Dim. - Width or Diameter (w/o conn.) 690 mm
Dim. - Depth (with conn.) 790 mm
Dim. - Height (with conn.) 2170 mm
Dim. - Width or Diameter (with conn.) 690 mm
    • Technical brochure

    • HeatMaster 25 / 35 / 45 / 70 / 85 / 120 TC (V15) - Installation, Operation and Maintenance instructions

    • 15.77 MB – en

    • Technical brochure

    • ACVMax - Installers handbook for heating systems controlled with ACVMax

    • 25.55 MB – en

    • Technical brochure

    • HeatMaster C, TC

    • 12.66 MB –

    • Marketing brochure

    • 2018 Product Guide

    • 9.80 MB – en

    • Product Fiche

    • HeatMaster 120 TC

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