High Efficiency Boilers

HeatMaster N

HeatMaster® 70 N

High performance combined boiler and water heater

  • ALSO AVAILABLE IN PROPANE
  • TANK-IN-TANK TECHNOLOGY

# A1002070

  • Fuel
  • Boilers
  • DHW Production
  • Standard
  • Floor installation
  • Stainless steel Tank-in-Tank design
  • 69.9 kW (HeatMaster® 70 N) or 107.0 kW (HeatMaster® 100 N) Outputs.
  • Choice of Burner: Low NOx Premix gas or LPG, forced draught natural gas or LPG or pressure jet 28 sec or 35 sec oil
  • Can also be used as a stand alone water heater
  • Anti–Legionellae: hot water stored at a consistently high temperature
  • Built-in primary circuit shunt high efficiency pump, internal expansion vessels, safety valve and low water pressure switch
  • Control panel including thermostats, combined temperature and pressure gauge, indicators and on/off switch
  • Stove enameled casing
  • The HeatMaster can be used in conjunction with the Smart and Jumbo storage tanks, supplying even the largest hot water requirement
  • Non Ecodesign compliant
  1. Cold water inlet
  2. Automatic air vent.
  3. Water thermostat.
  4. Primary expansion vessels.
  5. Low water pressure switch.
  6. Control thermostat.
  7. Primary circuit safety valve.
  8. Boiler charge high efficiency pump.
  9. Rigid polyurethane insulation.
  10. Flue reduction collar.
  11. Turbulators.
  12. Heating circuit flow.
  13. Domestic hot water outlet.
  14. Internal stainless steel tank.
  15. Stainless steel thermostat pocket for DHW.
  16. Primary circuit.
  17. Flue pipes.
  18. Heating circuit return.
  19. Drain valve.
  20. Combustion chamber.

Constructive characteristics

Capacity (total) 239 L
Capacity (primary) 108 L
Capacity (domestic hot water) 131 L
Capacity expansion tank(s) 2 x 10 L
Chimney connection 150 Ømm
Connection - heating 6/4 F Ø"
Connection - DHW 1 M Ø"
Connection - safety valve 1/2 M Ø"
Max operating temperature 90 °C
Water pressure drop boiler at Δt = 20°C 46 mbar
Max service pressure heating (primary) 3 bar
Max service pressure (DHW) 8,6 bar
Weight (empty) 285 kg

Heating characteristics

Pre-heating time from 10 to 80°C (Heat source: boiler) 24 min
Heating time from 10 to 90°C 36 min

Combustion

Input max (heating) HCV 77,7 kW
Input max (heating) LCV 69,9 kW
Efficiency at 30% load (EN677) 96,7 %
Efficiency (max output) 80/60°C 90,2 %
NOx class (EN483) 5
Output power max (80/60°C) 63 kW

Eco Design Fields

NOx weighted (GCV) 83,3 mg/kWh

Domestic hot water performance

Peak flow at 40°C 646 L/10’
Peak flow 1st hour at 40°C 2133 L/60’
Continuous flow at 40°C 1835 L/h
Peak flow at 45°C 543 L/10’
Peak flow 1st hour at 45°C 1794 L/60’
Continuous flow at 45°C 1573 L/h
Peak flow at 60°C 346 L/10’
Peak flow 1st hour at 60°C 1219 L/60’
Continuous flow at 60°C 1101 L/h

Electrical Characteristics

Voltage 230 V
Frequency 50 Hz
Protection IP 30
Electrical consumption 95 W
Electrical power requirements 0,4 A
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