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 HeatMaster® 71 - 101...

High Efficiency Range

High performance combined
boiler and water heater with fully
modulating burner technology.
 
The HeatMaster is a high performance hot water producer: its annular Tank-in-Tank holds a volume of hot water for peak demand. This combines the advantages of a hot water producer with integrated storage and of an instantaneous water heater, while avoiding the disadvantages of space, cost and efficiency.

The HeatMaster has a primary circuit and can therefore also be used as a central heating boiler.

Exceptional Performance
The MCBA electronic controller regulates the boiler (start-up, safety, modulation), the shunt pump and the heating pump in response to hot water and heating demand. The MCBA offers numerous advanced features:
 
- A large burner modulation range - down to less than 30%
- Extremely accurate hot water priority: even very small draw-offs are immediately detected
- The hot water tank is always kept at an optimum temperature
- Excellent hot water performance
- Energy efficiency is optimised in both hot water and heating modes.
  •  
Product Features
• High performance fully modulating combined boiler and water heater
• Stainless steel Tank-in-Tank design
• Low-NOx premix natural gas/LPG modulating burners
• 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 pump
• Fully insulated with rigid polyurethane foam
• Stove enamelled casing
• Control panel including digital MCBA controller complete with self diagnostic system and combined temperature and pressure gauge
• Vented or unvented use, with mains pressure SystemPaks available

Modulating Burner
The HeatMaster 71 and 101 are fitted with the BG2000-M modulating burner, which has a metal fibre (NIT) flame tube and smooth and near-silent ignition and operation - ideal for use in applications where burner noise must be kept to a minimum.
 
Dimensions

Technical Data      
    HM71 HM101
Fuel   NAT GAS/LPG NAT GAS/ LPG
Input kW 20 to 69.9 25 to 107/ 22 to 110
Output kW 18.4 to 63 23 to 96.8/ 20.2 to 99
Primary capacity L 108 130
Total capacity L 239 330
Heating surface area m2 3.14 3.95
Primary circuit pressure drop mbar 46 83
DHW tank pressure drop mbar 45 180
Flue circuit pressure drop mbar 0.6 1.4
DHW connection (male BSP) Æ 1" 1"
Primary Connection (female BSP) Æ 1 1/2" 1 1/2"
Flue connection Æ mm 150 150
Burner air intake connection Æ mm 80 (BG2000-M) 100 (BG2000-M)
Weight empty kg 282 335
Weight full kg 521 665
Minimum working gas pressure mbar 20(Nat gas) 37(LPG) 20(Nat gas) 37(LPG)
Gas flow rate m3/h 2.12 to 7.4(Nat gas) 2.65 to 11.32(Nat gas)
    0.82 to 2.86(LPG) 0.9 to 4.5(LPG)
 
Performance Data      
       
Litres in first 10 minutes  40°C 646 905
Litres in first 10 minutes  45°C 543 777
Litres in first 10 minutes  60°C 346 514
Litres in first hour 40°C 2133 3172
Litres in first hour 45°C 1794 2680
Litres in first hour 60°C 1219 1813
Continuous flow 40°C Ltrs/hr 1835 2776
Continuous flow 45°C Ltrs/hr 1573 2379
Continuous flow 60°C Ltrs/hr 1067 1665
Reheat time to 60°C min 16 13
 

 

 

 

 

 

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