Oct 23, 2014 Search

LHS 21 Air Heater

LHS 21

The LHS 21 air heater provides the same power as its predecessor in a smaller package. Offering 1.0-3.3 kW of heating power this tool can provide hot air at temperatures of up to 650°C. The Leister line of LHS air heaters are suitable for building into machines, installations or appliances and are designed for continuous operation.

  • Compact for installation into machines or other tight spaces
  • Reliable, patented heat element protection
  • Low maintenance costs
  • Designed for continuous operation
  • Standard control interface for easy integration into existing controls
  • Available as three types:
    CLASSIC: for permanent full heat capacity; passive overheat protection
    PREMIUM: for manual adjustment of the heating power; active overheat protection
    SYSTEM: for manual closed-loop adjustment of the temperature or external control; active overheat protection; various operating modes possible
    Click here for more information about the different types of LHS tool
Product Numbers - LHS 21 Air Heater

LHS 21S - 1.0kW / 120V 139.868 140.454 140.458
LHS 21S - 1.0kW / 230V 139.869 140.455 140.459
LHS 21S - 2.0kW / 120V 139.870 140.456 140.460
LHS 21S - 2.0kW / 230V 139.871 139.909 139.910
LHS 21L - 3.3kW / 230V 139.872 140.457 140.461

Why Buy From Us

The LHS 21 air heater is only available in Canada from STANMECH and its distributor network. These compact, robust tools are designed specifically for machine installation.

Technical Data – LHS 21 Air Heater

Voltage V 120, 230 230
Frequency Hz 50 / 60 50 / 60
Power Consumption kW 1.0, 2.0 3.3
Min. air flow l/min 120 240
Max. air pressure kPa 100 100
Max. outlet temp. °C 650 650
Max. ambient temp. °C 65 65
Noise level dB <70 <70
Size (L x W x H) mm 236 x 67 x 71 (21S)
266 x 67 x 71 (21L)
Heater tube mm Ø 36.5 Ø 36.5
Weight kg 0.5 0.6
Approval markings
Electrical protection
Class II Class II


  • It is recommended that a Leister brand blower be used to supply this tool with air
  • Minimum air flow requirements must be adhered to, failure to do so may result in damage to the tool
  • For help choosing the correct heater and blower combination please contact your sales representative

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Printable Product Data Sheet (PDF)
Accessories (PDF)
John's Tech Tips

Flyer (PDF)
Leister General Process Heat Catalogue (PDF)

Operating Manual (PDF)
Request parts information for this tool

STANMECH Technologies Inc. | 944 Zelco Drive Burlington ON L7L 4Y3 | 1-888-438-6324
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