800•421•6488 comenco@comenco.com

Process Air Heaters

ComEnCo manufactures direct and indirect air heaters heating fresh air or process air for industrial dryers.  A burner management system and a combustion control system are used to maintain low nitrogen oxide and carbon dioxide emissions which are major environmental concerns.

The burner management system has a flame safeguard relay with the first out annunciator.  The combustion control system allows a radio control and position proposition control to meter air and fuel flow. The low emission air heaters can be installed both indoors and outdoors.



Thermal efficiency 90% - 95%


Install indoor and outdoor


10,000,000 to 15,000,000 Btu/hr.

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ComEnCo offers superior quality and advanced technology by in-house Engineers.  Our dedicated working team perseveres to provide reliable equipment. Our in-house service technicians supply fast and on time start up services for our equipment. ComEnCo’s strong R&D continually looks for new cutting edge designs and technology for new products.


High Burner Capacity & Thermal Efficiency

ComEnCo uses the low emission air heaters is series AH with a burner capacity of 10,000,000 to 15,000,000 Btu/hr.  The temperature of the process air outlet is 600 to 1000 degrees with a process airflow of 150,000 to 400,000 ACFM.  The heaters feature an indirect fired heater flue gas temperature of 150 to 180 degrees and a thermal efficiency of 90 percent to 95 percent. They produce emissions of NOx at 0.01 to 0.05 lb/MMBtu/hr as well as emissions of CO from 0 to 0.0075 lb/MMBtu/hr. The heaters burn natural gas, propane, butane, hydrogen, biogas and number 2 and number 6 oil.

The low emission air heaters have high burner capacity, high thermal efficiency, low emission and a safe and state of the art control system.


Model Number: Series AH

Burner Capacity: 10,000, 000 to 15,000, 000 Btu/hr

Process air outlet temperature: 600 to 1000 degrees

Process airflow: 150,000 to 400,000 ACFM

Indirect fired heater flue gas temperature: 150 to 1800 degrees

Indirect fired heater thermal efficiency: 90% to 95%

NOx Emissions: 0.01 to 0.05 lb/MMBtu/hr

CO Emission: 0 to 0.075 lb/MMBtu/hr

Installation location: Outdoor and indoor

Burner Fuel: Natural gas, Propane, Butane, Hydrogen, Biogas, #2 to #6 oil

Combustion Control System: Air and fuel mass flow metering radio control.  Position proportional control.

Burner management system: Flame safeguard relay with first out annunciator

Uses: Dryer in ethanol producing, tissue paper, gypsum board, food, chemical and any industry process industry.

Unique Features: High burner capacity, high thermal efficiency, low emission and safe and state of the art control system.

Corporate Headquarters:

44 East Beaver Creek, Unit #7
Richmond Hill, Ontario L4B 1G8
Phone: (905) 738-6118
Fax: (905) 738-8868
Email: comenco@comenco.com

China Location:

252 Wen San Road, Suite 7E
Wei Xing Building
Hangzhou, Zhejiang
Peoples Republic of China
Phone: +(86) 571-8885-6089
Fax: +(86) 571-8885-6096
Email: comenco@vip.sina.com