Agricultural Heating Uses

  • Greenhouses
  • Swine houses
  • Poultry houses


  • Easy to use and cost-effective.
  • Simple installation and operation.
  • High heating capacity.
  • Simple to control with a thermostat or most environmental controllers.
  • Exceptional reliability and durability.
  • Easy maintenance.



The thermostat calls for heating. The circulation fan starts and the ignition control system starts to ignite and burn. The combustion products are mixed with the heated circulating air to achieve the purpose of heating.

The air heater has an open combustion chamber, which means that all the heat from the combusted gas enters the room, ensuring 100% heater efficiency.



  • Natural gas or LPG.
  • Rates 50/70/100/120kW.
  • The 12VAC low-voltage ignition controller, specially developed for HVAC industry, all troubleshoots can be easily identified by the indicator lights.
  • Safer and reliable low-voltage 24 VAC combination gas valve with 100% shut off.
  • Flameout protection, fan malfunction protection, and overheating protection.
  • Indoors installation only.

1. Greenhouse size:

  • Measure the total exterior surface area of your greenhouse in square feet. This includes walls, roof, and doors, but not the floor.

2. Heat loss factors:

  • Identify the heat loss factor (U-factor) of your greenhouse materials. This value represents how readily heat escapes through the materials. Lower U-factors indicate better insulation.
  • Common U-factors for greenhouse materials:                                                                                        –  Single-layer plastic: 1.5-2.0 BTU/(hrft²°F)                                                                                           –  Double-layer plastic: 0.75-1.0 BTU/(hrft²°F)                                                                                     –  Glass: 1.0-1.5 BTU/(hrft²°F)

3. Temperature difference:

  • Calculate the desired temperature difference (ΔT) between the inside and outside of your greenhouse. This is typically the minimum temperature you want to maintain inside minus the average outdoor temperature during the coldest period.

4. Heater output:

  • BTU (British Thermal Units) measure the heating capacity of a heater. Use the following formula to calculate the required heater output (BTUH):                                                            BTUH = Surface Area (sq ft) * U-factor (BTU/(hrft²°F)) * ΔT (°F)

5. Safety margin:

  • Add a safety margin of 10-20% to the calculated BTUH to account for heat loss through ventilation, infiltration, and other factors.
  • Allow enough free space to the left and right of the air heater to enable maintenance and repair works to be carried out.
  • The air heater must be connected to a reliably earthed and watertight wall socket at all times. 
  • The air heater must never be connected to a duct system.
  • Inspect the air heater prior to use and check for damages.
  • Avoid exposing the air heater to water and moisture for long periods of time.
  • Keep the control instruments free from dirt and grease.
  • Bear in mind that some parts of the air heater become hot during use.
  • When the air heater is not used for long periods of time, remove the plug from the wall socked and shut off the gas supply.


Industrial Heating Uses

  • Warehouses
  • Factories
  • Air Hangers
  • Railway Stations
  • Gymnasiums
  • Exhibition Halls


  • Energy-efficient: Saves 30% gas and  50% electricity compared to traditional convection heating.
  • Clean: No air disturbance.
  • Quiet: No noise
  • Safe: Gas pipelines do not enter the interior, with lower requirements for buildling fire safety.



The gas burner generates high-temperature flue gas by burning natural gas or propane. Under the action of the induced draft fan, the flue gas flows along the radiant tube, heating the surface of the radiant tube to a certain temperature. The radiant tube and reflector heat objects or the ground below in the form of infrared radiation, achieving heating effects.

The gas radiant strips consists of the main unit (including the burner,combustion chamber, centrifugal circulation induced draft  fan,etc.), radiant tube,reflector, control system,and other components


  • BP series two-stage or BS series proportional combustion technology
  • Heat-treated aluminized steel radiant tube
  • Three-sided insulationfor the reflector
  • The heat generator can be installed outdoors, ensuring safe combustion,and no need for indoor installation of a gas leak alarm system
  • Installed at the top of the building, not occupying working space
  • High-temperature flue gas recirculation combustion technology
  • Gas and power lines are nstalled outdoors, reducing the building’s fire protection level
  • Combustion uses outside air, with flue exhaust to the outside
  • Intelligent temperature control: single-unit on-site control,
  • PLC multi-unit group control on-site, or remote control (optional)

Heating Power: 

  • Warehouse: 80-110 W/sqm
  • Factory: 120-180 W/sqm

Burner: Two-stage BP burner or modulating BS burner

Radiant strips module (pipe&reflector): Double pipe or single pipe

Controls: Local control or remote control

  • Minimum distances to combustibles must be met, according to the manual.
  • Installation is not recommended in places where there are chlorine products, solvents or explosives, but certain models are suitable for that type of environment.
  • Enough expansion joints should be designed and installed.


Industrial & Commercial Heating Uses

  • Factories
  • Warehouses
  • Airports
  • Railway Stations
  • Supermarkets
  • Offices,
  • Gymnasiums
  • Schools
  • Exhibition halls
  • Drying process such as food and painting.

Agricultural Heating Uses

  • Greenhouses
  • Poultry houses


  • Can disperse or direct heating.
  • Integrated design for easy installation.
  • Fully automatic operation, no need for personnel on duty.
  • Wide power range, from 100kW to 1400kW.
  • No need for complex water systems, low equipment failure rate.
  • Quickly addresses heating issues in large spaces, warehouses, etc.
  • Broad fuel adaptability, suitable for gas, oil, and other fuels.



A warm air generator is a stand-alone appliance serving to heat a given space and capable of operating on propane, natural gas or diesel.

Drum-type indirect-fired air heaters mainly consist of a combustion unit, a heat exchange unit, a fan unit, a filtration unit, and a control system. They can be installed indoors or outdoors (with the option to install a mixed adjustment device for fresh air and indoor return air). Equipped with a built-in centrifugal fan, the system delivers heated air to the desired area through the air supply system, achieving the purpose of heating.

                       Vertical Configuaration                                           Horizontal Configuration


  • Available in vertical or horizontal configurations, suitable for indoor or outdoor installation.
  • Combustion is proportionally controlled, with a thermal efficiency exceeding 90%, resulting in energy savings.
  • Multiple interlocking protection measures, including flameout protection, air pressure protection, overheat protection, and low gas pressure protection.
  • Large combustion chamber design, small combustion chamber volume, low NOx emissions.
  • Unique heat exchange tube design, increasing smoke disturbance, and achieving high heat exchange efficiency.

Here are the criteria to consider in selecting the units:

  • Vertical or horizontal units;
  • Indoor or outdoor applications
  • Fuel types, such as natural gas, propane, diesel and etc.
  • Max. static pressure of centrifugal blower(s)
  • Heating power
  • Air flow rate

To start with the installation, it’s best to begin with a pre-installation checklist (a list of items to check before installation). The following is a basic checklist, intended as an example:

  • Choose a suitable location for installing the heater.
  • Ensure that ventilation requirements can be met.
  • Examine any issues that may affect the installation of HVAC, plumbing, and electrical systems.
  • Design and plan the correct fuel supply pipeline.
  • Design and plan the correct supply and return air ducts (if necessary).
  • Check the minimum distance from combustible materials in accordance with manufacturer recommendations and local regulations.
  • Ensure equipment is easily accessible for maintenance.
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