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Combustion 911
Supplying and Serving the Combustion Industry
an Olsträd Engineering Company

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Industrial Burner RHGBHigh-Velocity Recuperated Gas Burner RHGB

  • High-velocity burner with integral recuperator for heat recovery
  • Multi-stage combustion
  • Separate cooling air connection possible
  • Compact unit in modular construction
  • Waste gas fitting, air and gas supply lines are situated on different levels and can be positioned 90° to each other
  • Burner control for automatic burner operation
  • Direct flame monitoring via ignition electrode (single-electrode ionization monitoring)
  • Trouble-free direct ignition as well as instant burning stability with cold start
  • High technical level as regards functional reliability, energy utilization, emission of harmful substances and sound level
  • Large variety of possible waste gas, gas and air connections
  • Ease of maintenance thanks to simple construction modules
  • Available in 15 – 250 kW (50,000 – 855,000 BTU/h) in steel design
  • Recuperator temperature max. 1150°C (2100°F)
  • For direct heating by means of ejector system to discharge the flue gases
  • For indirect heating by means of radiant tubes

NOXMAT®’s RHGB high-velocity recuperated gas burner is designed for the direct or indirect heating of industrial furnaces in a number of applications.

The burner is available in either the “basic” or “complete” version. The basic version consists of: the burner, stopper for cooling air, connection fitting gas supply line, and connection fitting combustion air supply line.

The complete version includes: the burner, gas supply line with double solenoid valve VMR, combustion air supply line with solenoid valve VMR, air metering orifice, dynamic pressure switch, burner control NOXMAT-B, industrial plug, stopper for cooling air, waste gas tube + punched hole collar, and purge air line.

Indirect Fire Models

Model and Description Model nominal thermal capacity minimum thermal capacity Gas Type nominal connected gas pressure nominal connected air pressure maximum temperature gas connection combustion air connection cooling air connection Price Cart
RHGB 15
15 kW (50,000 BTU/h) nominal thermal capacity; 9 kW (30,000 BTU/h) minimal thermal capacity; 5 kPa (20”w.c.) nominal connected gas pressure; 6 kPa (24”w.c.) nominal connected air pressure; 1150°C (2100°F) max. recuperator temperature; DN 15 gas connection; DN 25 combustion air connection; DN 25 cooling air connection; For natural gas, liquid propane gas, and special gases (on demand)
RHGB 15 15 kW (50,000 BTU/h) 9 kW (30,000 BTU/h) Natural Gas, liquid propane gas, and special gases (on demand) 5 kPa (20"w.c.) 6 kPa (24"w.c.) 1150°C (2100°F) DN 15 DN 25 DN 25 Contact Us Not available for online purchase.
RHGB 25
25 kW (85,000 BTU/h) nominal thermal capacity; 13 kW (45,000 BTU/h) minimal thermal capacity; 5 kPa (20”w.c.) nominal connected gas pressure; 6 kPa (24”w.c.) nominal connected air pressure; 1150°C (2100°F) max. recuperator temperature; DN 15 gas connection; DN 25 combustion air connection; DN 40 cooling air connection; For natural gas, liquid propane gas, and special gases (on demand)
RHGB 25 25 kW (85,000 BTU/h) 13 kW (45,000 BTU/h) Natural Gas, liquid propane gas, and special gases (on demand) 5 kPa (20"w.c.) 6 kPa (24"w.c.) 1150°C (2100°F) DN 15 DN 25 DN 40 Contact Us Not available for online purchase.
RHGB 40
40 kW (135,000 BTU/h) nominal thermal capacity; 25 kW (85,000 BTU/h) minimal thermal capacity; 5 kPa (20”w.c.) nominal connected gas pressure; 8 kPa (32”w.c.) nominal connected air pressure; 1150°C (2100°F) max. recuperator temperature; DN 15 gas connection; DN 25 combustion air connection; DN 40 cooling air connection; For natural gas, liquid propane gas, and special gases (on demand)
RHGB 40 40 kW (135,000 BTU/h) 25 kW (85,000 BTU/h) Natural Gas, liquid propane gas, and special gases (on demand) 5 kPa (20"w.c.) 8 kPa (32”w.c.) 1150°C (2100°F) DN 15 DN 25 DN 40 Contact Us Not available for online purchase.
RHGB 80
80 kW (270,000 BTU/h) nominal thermal capacity; 40 kW (135,000 BTU/h) minimal thermal capacity; 5 kPa (20”w.c.) nominal connected gas pressure; 8 kPa (32”w.c.) nominal connected air pressure; 1150°C (2100°F) max. recuperator temperature; DN 15 gas connection; DN 40 combustion air connection; DN 40 cooling air connection; For natural gas, liquid propane gas, and special gases (on demand)
RHGB 80 80 kW (270,000 BTU/h) 40 kW (135,000 BTU/h) Natural Gas, liquid propane gas, and special gases (on demand) 5 kPa (20"w.c.) 8 kPa (32”w.c.) 1150°C (2100°F) DN 15 DN 40 DN 40 Contact Us Not available for online purchase.
RHGB 100
100 kW (340,000 BTU/h) nominal thermal capacity; 50 kW (170,000 BTU/h) minimal thermal capacity; 7 kPa (28”w.c.) nominal connected gas pressure; 9 kPa (36”w.c.) nominal connected air pressure; 1150°C (2100°F) max. recuperator temperature; DN 20 gas connection; DN 40 combustion air connection; DN 40 cooling air connection; For natural gas, liquid propane gas, and special gases (on demand)
RHGB 100 100 kW (340,000 BTU/h) 50 kW (170,000 BTU/h) Natural Gas, liquid propane gas, and special gases (on demand) 7 kPa (28”w.c.) 9 kPa (36”w.c.) 1150°C (2100°F) DN 20 DN 40 DN 40 Contact Us Not available for online purchase.
RHGB 160
160 kW (545,000 BTU/h) nominal thermal capacity; 80 kW (270,000 BTU/h) minimal thermal capacity; 5 kPa (20”w.c.) nominal connected gas pressure; 8 kPa (32”w.c.) nominal connected air pressure; 1150°C (2100°F) max. recuperator temperature; DN 20 gas connection; DN 50 combustion air connection; DN 50 cooling air connection; For natural gas, liquid propane gas, and special gases (on demand)
RHGB 160 160 kW (545,000 BTU/h) 80 kW (270,000 BTU/h) Natural Gas, liquid propane gas, and special gases (on demand) 5 kPa (20”w.c.) 8 kPa (32”w.c.) 1150°C (2100°F) DN 20 DN 50 DN 50 Contact Us Not available for online purchase.
RHGB 250
250 kW (855,000 BTU/h) nominal thermal capacity; 100 kW (340,000 BTU/h) minimal thermal capacity; 7 kPa (28”w.c.) nominal connected gas pressure; 9 kPa (36”w.c.) nominal connected air pressure; 1150°C (2100°F) max. recuperator temperature; DN 25 gas connection; DN 65 combustion air connection; DN 65 cooling air connection; For natural gas, liquid propane gas, and special gases (on demand)
RHGB 250 250 kW (855,000 BTU/h) 100 kW (340,000 BTU/h) Natural Gas, liquid propane gas, and special gases (on demand) 7 kPa (28”w.c.) 9 kPa (36”w.c.) 1150°C (2100°F) DN 25 DN 65 DN 65 Contact Us Not available for online purchase.

Direct Fire Models

Model and Description Model nominal thermal capacity minimum thermal capacity Gas Type nominal connected gas pressure nominal connected air pressure maximum temperature gas connection combustion air connection cooling air connection Price Cart
RHGB 15
15 kW (50,000 BTU/h) nominal thermal capacity; 9 kW (30,000 BTU/h) minimal thermal capacity; 5 kPa (20”w.c.) nominal connected gas pressure; 10 kPa (40”w.c.) nominal connected air pressure; 1150°C (2100°F) max. recuperator temperature; DN 15 gas connection; DN 25 combustion air connection; DN 25 cooling air connection; For natural gas, liquid propane gas, and special gases (on demand)
RHGB 15 15 kW (50,000 BTU/h) 9 kW (30,000 BTU/h) Natural Gas, liquid propane gas, and special gases (on demand) 5 kPa (20"w.c.) 10 kPa (40"w.c.) 1150°C (2100°F) DN 15 DN 25 DN 25 Contact Us Not available for online purchase.
RHGB 25
25 kW (85,000 BTU/h) nominal thermal capacity; 13 kW (45,000 BTU/h) minimal thermal capacity; 5 kPa (20”w.c.) nominal connected gas pressure; 10 kPa (40"w.c.) nominal connected air pressure; 1150°C (2100°F) max. recuperator temperature; DN 15 gas connection; DN 25 combustion air connection; DN 25 cooling air connection; For natural gas, liquid propane gas, and special gases (on demand)
RHGB 25 25 kW (85,000 BTU/h) 13 kW (45,000 BTU/h) Natural Gas, liquid propane gas, and special gases (on demand) 5 kPa (20"w.c.) 10 kPa (40"w.c.) 1150°C (2100°F) DN 15 DN 25 DN 25 Contact Us Not available for online purchase.
RHGB 40
40 kW (135,000 BTU/h) nominal thermal capacity; 25 kW (85,000 BTU/h) minimal thermal capacity; 5 kPa (20”w.c.) nominal connected gas pressure; 10 kPa (40"w.c.) nominal connected air pressure; 1150°C (2100°F) max. recuperator temperature; DN 15 gas connection; DN 25 combustion air connection; DN 25 cooling air connection; For natural gas, liquid propane gas, and special gases (on demand)
RHGB 40 40 kW (135,000 BTU/h) 25 kW (85,000 BTU/h) Natural Gas, liquid propane gas, and special gases (on demand) 5 kPa (20"w.c.) 10 kPa (40"w.c.) 1150°C (2100°F) DN 15 DN 25 DN 25 Contact Us Not available for online purchase.
RHGB 80
80 kW (270,000 BTU/h) nominal thermal capacity; 40 kW (135,000 BTU/h) minimal thermal capacity; 5 kPa (20”w.c.) nominal connected gas pressure; 12 kPa (48”w.c.) nominal connected air pressure; 1150°C (2100°F) max. recuperator temperature; DN 15 gas connection; DN 40 combustion air connection; DN 40 cooling air connection; For natural gas, liquid propane gas, and special gases (on demand)
RHGB 80 80 kW (270,000 BTU/h) 40 kW (135,000 BTU/h) Natural Gas, liquid propane gas, and special gases (on demand) 5 kPa (20"w.c.) 12 kPa (48”w.c.) 1150°C (2100°F) DN 15 DN 40 DN 40 Contact Us Not available for online purchase.
RHGB 100
100 kW (340,000 BTU/h) nominal thermal capacity; 50 kW (170,000 BTU/h) minimal thermal capacity; 7 kPa (28”w.c.) nominal connected gas pressure; 12 kPa (48”w.c.) nominal connected air pressure; 1150°C (2100°F) max. recuperator temperature; DN 20 gas connection; DN 40 combustion air connection; DN 40 cooling air connection; For natural gas, liquid propane gas, and special gases (on demand)
RHGB 100 100 kW (340,000 BTU/h) 50 kW (170,000 BTU/h) Natural Gas, liquid propane gas, and special gases (on demand) 7 kPa (28”w.c.) 12 kPa (48”w.c.) 1150°C (2100°F) DN 20 DN 40 DN 40 Contact Us Not available for online purchase.
RHGB 160
160 kW (545,000 BTU/h) nominal thermal capacity; 80 kW (270,000 BTU/h) minimal thermal capacity; 5 kPa (20”w.c.) nominal connected gas pressure; 12 kPa (48”w.c.) nominal connected air pressure; 1150°C (2100°F) max. recuperator temperature; DN 20 gas connection; DN 50 combustion air connection; DN 50 cooling air connection; For natural gas, liquid propane gas, and special gases (on demand)
RHGB 160 160 kW (545,000 BTU/h) 80 kW (270,000 BTU/h) Natural Gas, liquid propane gas, and special gases (on demand) 5 kPa (20”w.c.) 12 kPa (48”w.c.) 1150°C (2100°F) DN 20 DN 50 DN 50 Contact Us Not available for online purchase.
RHGB 250
250 kW (855,000 BTU/h) nominal thermal capacity; 100 kW (340,000 BTU/h) minimal thermal capacity; 7 kPa (28”w.c.) nominal connected gas pressure; 13 kPa (52”w.c.) nominal connected air pressure; 1150°C (2100°F) max. recuperator temperature; DN 25 gas connection; DN 65 combustion air connection; DN 50 cooling air connection; For natural gas, liquid propane gas, and special gases (on demand)
RHGB 250 250 kW (855,000 BTU/h) 100 kW (340,000 BTU/h) Natural Gas, liquid propane gas, and special gases (on demand) 7 kPa (28”w.c.) 13 kPa (52”w.c.) 1150°C (2100°F) DN 25 DN 65 DN 50 Contact Us Not available for online purchase.

For all other configurations and spare parts Contact Combustion 911

Model and Description Price Cart
Ignition Cable
Silicon Rubber Cable High Voltage 7mm (priced per foot).
UVS 10D2
UV sensor monitors gas burners in intermittent operation. ½″ NPT internal thread. Replaces UVS 8T.
UVS 10D3
UV sensor monitors gas burners in intermittent operation. ½″ NPT internal thread and cooling air connection.
UVS 10D0G1
UV sensor monitors gas burners in intermittent operation. Rp ½″ internal thread and M20 cable gland. Replaces UVS 6.

Latest Blog Post

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