Condensing Boilers

HeatMaster C, TC

HeatMaster 25 C

Gas fired condensing combined boiler and high output water heater

# A1002007

  • Gas
  • Boilers
  • Standard
  • Concentric
  • Floor installation
  • Floor standing boiler with large primary water volume, adaptable to all types of existing installation
  • Responds to high peak demand and high continuous flow
  • Exceptional domestic hot water flow: >35L/min
  • NOx rating (EN483) 22.8/kWh
  • Seasonal Efficiency 96.8%
  • Stainless steel Tank-in-Tank DHW cylinder with proven long life reliability
  • Anti Legionellae: hot water stored at consistently high temperature
  • Stainless steel self-cleaning heat exchanger
  • High efficiency boiler charging pump (released in April)
  • Concentric balanced flue or conventional flue options.
  • Can also be used as a stand alone water heater.
  • Also available in propane.
  • Tank-in-Tank Technology
  • 5 Year Warranty (subject to terms and conditions)
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Legend

  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. DHW circuit tube
  7. Condensate recovery dish
  8. High efficiency circulator pump
  9. NTC sensor (heating circuit)
  10. Pressure sensor
  11. Electrical panel (with spare fuses at the back)
  12. ACVMax Control panel
  13. DHW tank dry well (Sparge tube with temperature sensor)
  14. Automatic air vent
  15. Gas pipe
  16. Gas valve
  17. Connection for DHW safety valve (to be installed)
  18. Modulating air/gas premix burner with fan
  19. Air inlet

Characteristics

Capacity (total) 200 L
Heating surface DHW tank 2,2
Coil capacity 0 L
Capacity (domestic hot water) 80 L
Connection - DHW 1 M inches
Max operating temperature (primary) 87 °C
Max service pressure (DHW) 8,6 bar
Max service pressure heating (primary) 3 bar
Weight (empty) 174 kg

Hot water performances

Peak flow at 40°C 233.5 L/10’
Peak flow 1st hour at 40°C 748 L/60’
Continuous flow at 40°C 617 L/h
Peak flow at 60°C 145 L/10’
Peak flow 1st hour at 60°C 478 L/60’
Continuous flow at 60°C 400 L/h
Pre-heating time from 10 to 80°C (Heat source: boiler) 27 min
Input max (heating) LCV 25 kW
Input max (heating) HCV 27,8 kW
Output power max (80/60°C) 24,3 kW
Output power min (80/60°C) 4,9 kW
Efficiency at 30% load (EN677) 109,0 %
Connection - heating 1 F Ø inches
Connection - gas 3/4 M Ø inches
Water pressure drop boiler at Δt = 20°C 3 mbar
Gas flow rate (max output) 2,66 m³/h
Gas flow rate G25 (max output) 2,96 m³/h
Chimney connection 80/125 Ø mm
Voltage 230 V
Protection IP 30
Electrical consumption 95 W
NOx emissions max output 64 mg/kWh
Capacity expansion tank(s) 0 L
Dim. - Depth (w/o conn.) 708 mm
Dim. - Height (w/o conn.) 1755 mm
Dim. - Width or Diameter (w/o conn.) 600 mm
Dim. - Depth (with conn.) 740 mm
Dim. - Height (with conn.) 1755 mm
Dim. - Width or Diameter (with conn.) 600 mm

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