HR 20

High efficiency gasfired unit air heater, 20 kW

  • High efficiency
  • Modulating burner and fan
  • Reliable design
  • Relatively low investment
  • 10 years warranty on heat exchanger
HR 20

High efficiency gasfired unit air heater, 20 kW

  • High efficiency
  • Modulating burner and fan
  • Reliable design
  • Relatively low investment
  • 10 years warranty on heat exchanger

Description

The HR 20 is a compact condensing air heater with an axial fan. The unit has a capacity of 20 kW and an efficiency of approximately 106%. The pre-mix burner and the system fan modulate both independently and stepless back to 30%. These both features ensure a constant and equal temperature in the building. 

More options

The HR 20 is suitable for natural gas or propane gas.
It is also possible to mount the unit up to an angle of 45 degrees. Together with the louvres, it is then possible to blow warm air vertically.
The compact and attractive design of the heater makes it possible to install it in almost any situation like showrooms , garages or cash-and-carry shops.

 

Features

  • condensing heater
    • modulating burner and fan regulation for more comfort   
    • delta T-control optimizes gas consumption   
    • compact and light   
    • summer ventilation 
    • special model for tilted position (V): slant direction of the air for a better heat distribution   
    • suspension on brackets (wall or ceiling) or design bracket (tiltable)  
    • models for natural gas or propane gas
    • very suitable for shops, showrooms, cafetarias, etc.     
    • delivery including siphon

Technical features

Nominal power 19.2kW
Minimum heat output 6.4kW
Nominal load lower value 20kW
Efficiency 106%
Air volume 0m³/h - 2600m³/h
Max. throw horizontal 20m
Max. throw vertical 0m
Supply voltage 230V
Nominal current 1.1A
Max. electric power input 250W
Max. sound level (at a distance of 4 metres) 58dB(A)
Material heat exchanger Stainless steel
Closed version Yes
Burner controller high/low No
Burner controller, modulating Yes
Control signal on/off Yes
Control signal 0-10 V No
Fan type Axial
Degree of protection (IP) IP00B
Height 495mm
Width 680mm
Depth 615mm
Weight 50kg
Min. mounting height (horizontal air distribution) 1.7m
Outer pipe diameter combustion air 80mm
Outer pipe diameter condensate 40mm
Seasonal space heating energy efficiency (Ns) 90.1%
Connection, fuel Internal thread
Nominal diameter fuel 1/2 inch (15)
Gas consumption low-calorific natural gas (G25) 2.4m³/h
Gas consumption propane (G31) 1.6kg/h
Gas consumption high-calorific natural gas (G20) 2.1m³/h

Images

Accessories

Controls
Suspension
Other
Flue material

Service articles

View our service parts for the HR 20 (and earlier models) in the parts shop.

Parts shop

Winterwarm HR-range

The Winterwarm HR-range combines the efficiency of a gas-fired unit air heater with additional energy savings and comfort.

All Winterwarm HR types