Home Wall-hung Combination Boiler Non Condensing Gas Wall Hung Boiler 24KW HWB-A81

Non Condensing Gas Wall Hung Boiler 24KW HWB-A81

An economical new model of dual purposes boiler launched for the year of 2022, the combination boiler A81 is a propane or natural gas fired boiler water heater combo which features compact size and cost effectiveness, especially good for projects with demanding budget.

The A81 Wall Mounted Tankless Boiler is avaible in capacity from 18KW, 20KW, 24KW and 28KW.
Compact size: 670*410*215mm

40HQ loading: 576 units.

  • Item NO.:

  • Payment:

    T/T, LC at sight
  • Product Origin:

  • Color:

    Light Grey
  • Shipping Port:

    Zhongshan, Guangzhou
  • Lead Time:

    21-45 days
  • Product Detail

Features and Advantages
•The expansion vessel is built at the side. The unit has remarkable advantage of compact size.  It is well accepted in places where space is at premium.
All components used are reliable, and the maintenance is convenient. 
•Program controlled operating system makes the combi boiler simple to use, and has the advantages of energy saving, stability and safety;
•Superior combustion chamber heat insulation board and efficient heat exchanger combined to produce remarkable heat insulation and heat exchange,  jointly improve thermal efficiency and save gas; at the same time, this helps to reduce the surface temperature of adjacent components and prolong the service life;
• The closed heating water circulation system is strictly separated from the sanitary water, suitable for single-story or duplex floor heating, and also makes the heating system less prone to scaling, corrosion, etc;
• Low noise operation make the user enjoy quiet and intimate warmth.

Control Board

Contron Panel For 24KW Gas Combination Boiler A81

Technical Data

Fuel Type Natural gas /LPG /Town gas
Rated gas pressure(Pa) 2000(Natural gas) /2800(LPG) /1000(Town gas)
Rated heat load(kW) 18 24 28
Heat efficiencty at rated heat load 90% 90% 90%
Power supply AC220-50Hz AC220-50Hz AC220-50Hz
Rated electric power (W) 110 110 120
Water proof protection IPX4 IPX4 IPX4
Central Heating
Rated output capacity (kW) 16.2 21.6 25.2
Water temperature range () Radiator: 30-80; Underfloor heating: 30-60
Heating area (sq.M 50-120 80-180 120-220
Water pump liftm) 5 5 6
Water pressure for heating system (MPa) 0.05-0.3 0.05-0.3 0.05-0.3
Expansion tank volume (L) 6 6 6
Expansion tank preload MPa 0.1 0.1 0.1
Heating system circuit  Sealed and forced
Domestic Hot Water
Flow rate T=30(kg/min) 7.5 10 11.7
DHW temperature range() 30-60
Applicable water pressure(MPa) 0.04-0.8 0.04-0.8 0.04-0.8
Min.Startup flow rate(L/min) 2.5 2.5 2.5
Min.turnoff flow rate(L/min) 2 2 2
Connector heating/gas inlet: G3/4; DHW connector: G1/2
Flue spec (mm) Coxial double pipes Φ60-Φ100
Flue pipe length (m) 1 1 1
Net weight (kg) 32.8 33 35
Normal working noise (dB) <45 <45 <45
Exhaust type Balanced forced draught
Ignition Pulse automatic ignition
Temperature control method Gas proportional modulating
Product Dimension (mm) 670*410*215 670*410*215 670*410*215
Carton Size (mm) 770*480*320 770*480*320 770*480*320

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    If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

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