Industrial burners
Industrial gas burner GSI
Continuously modulating high-performance burner
Made in Germany
2–4 weeks
2-year warranty
Highlights
  • Turndown ratio up to 1:95 – maximum flexibility
  • Up to 20% energy savings compared with competitor products
  • Bus connection for Industry 4.0 and building automation
Output
3 – 1,950 kW
Turndown ratio
up to 1:95
Fast processing:
Quote within 24 hours · Free technical consultation
Product description
The industrial gas burner GSI is a continuously modulating high-performance burner with the widest turndown range in the portfolio. Developed for precise temperature control in demanding industrial processes.
The GSI series combines the highest efficiency with maximum flexibility. With turndown ratios of up to 1:95, the GSI adapts exactly to the actual heat demand. The result: precise temperature control, fewer burner starts, longer running times and up to 15% energy savings in part-load operation.
The electrical primary energy demand is up to 20% lower than for competitor products – a decisive advantage for your operating costs. The robust construction guarantees an average service life of more than 15 years with minimal maintenance costs.
Typical applications:
Industrial heating, thermal process plants, thermal post-combustion, direct and indirect firing, building heating, biogas plants
Technical specifications

‍

GSI 50 – 350

TypeGSI 50GSI 100GSI 180GSI 250GSI 350
Burner output3 - 60 kW4 - 110 kW4 - 166 kW4 - 250 kW6 - 350 kW
Controlcontinuously variablecontinuously variablecontinuously variablecontinuously variablecontinuously variable
Product ID no.CE0085AQ1024 DVGW testedCE0085AQ1024 DVGW testedCE0085AQ1024 DVGW testedCE0085AQ1024 DVGW testedCE0085AQ1024 DVGW tested
Mains connection230 V / 50 Hz230 V / 50 Hz230 V / 50 Hz230 V / 50 Hz230 V / 50 Hz
Motor0.07 kW / 0.75 A / 2800 min-10.07 kW / 0.75 A / 2800 min-10.07 kW / 0.75 A / 2800 min-10.07 kW / 0.75 A / 2800 min-10.45 kW / 3.1 A / 2800 min-1
Gas burner control unitLMV37LMV37LMV37LMV37LMV37
Ignition transformer7,000 V / 30 mA7,000 V / 30 mA7,000 V / 30 mA7,000 V / 30 mA10,000 V / 30 mA
Gas pressure20 - 100 mbar20 - 100 mbar20 - 100 mbar20 - 100 mbar20 - 100 mbar
Gas flow rate0.3 - 6 m³/h0.4 - 10 m³/h0.4 - 16 m³/h0.4 - 24 m³/h0.6 - 33 m³/h
Max. turndown ratio1 : 201 : 281 : 401 : 601 : 58
Weight23 kg25 kg25 kg27 kg44 kg
Burner connectionR ½ "R ¾ "R ¾ "R 1 "R 1½ "
Order no.5518 522 2045518 523 2065518 524 2065518 524 2175518 525 202
Burner output3 - 60 kW
Controlcontinuously variable
Product ID no.CE0085AQ1024 DVGW tested
Mains connection230 V / 50 Hz
Motor0.07 kW / 0.75 A / 2800 min-1
Gas burner control unitLMV37
Ignition transformer7,000 V / 30 mA
Gas pressure20 - 100 mbar
Gas flow rate0.3 - 6 m³/h
Max. turndown ratio1 : 20
Weight23 kg
Burner connectionR ½ "
Order no.5518 522 204
Burner output4 - 110 kW
Controlcontinuously variable
Product ID no.CE0085AQ1024 DVGW tested
Mains connection230 V / 50 Hz
Motor0.07 kW / 0.75 A / 2800 min-1
Gas burner control unitLMV37
Ignition transformer7,000 V / 30 mA
Gas pressure20 - 100 mbar
Gas flow rate0.4 - 10 m³/h
Max. turndown ratio1 : 28
Weight25 kg
Burner connectionR ¾ "
Order no.5518 523 206
Burner output4 - 166 kW
Controlcontinuously variable
Product ID no.CE0085AQ1024 DVGW tested
Mains connection230 V / 50 Hz
Motor0.07 kW / 0.75 A / 2800 min-1
Gas burner control unitLMV37
Ignition transformer7,000 V / 30 mA
Gas pressure20 - 100 mbar
Gas flow rate0.4 - 16 m³/h
Max. turndown ratio1 : 40
Weight25 kg
Burner connectionR ¾ "
Order no.5518 524 206
Burner output4 - 250 kW
Controlcontinuously variable
Product ID no.CE0085AQ1024 DVGW tested
Mains connection230 V / 50 Hz
Motor0.07 kW / 0.75 A / 2800 min-1
Gas burner control unitLMV37
Ignition transformer7,000 V / 30 mA
Gas pressure20 - 100 mbar
Gas flow rate0.4 - 24 m³/h
Max. turndown ratio1 : 60
Weight27 kg
Burner connectionR 1 "
Order no.5518 524 217
Burner output6 - 350 kW
Controlcontinuously variable
Product ID no.CE0085AQ1024 DVGW tested
Mains connection230 V / 50 Hz
Motor0.45 kW / 3.1 A / 2800 min-1
Gas burner control unitLMV37
Ignition transformer10,000 V / 30 mA
Gas pressure20 - 100 mbar
Gas flow rate0.6 - 33 m³/h
Max. turndown ratio1 : 58
Weight44 kg
Burner connectionR 1½ "
Order no.5518 525 202

*Pressure stated as gas flow pressure
Special designs: burner design to TRD 412 · with three-phase motor · flame tube extension of 100 - 1000 mm possible · potentiometer with servo motor built in · continuously running fan with differential pressure switch and three-way valve · air intake filter with replaceable filter element

Output ranges in kW (values apply to natural gas, pressure stated as gas flow pressure)

Type20 mbar
GSI 50 E/F 0,5 M3 - 60
GSI 100 E/F 0,75 M4 - 110
GSI 180 E/F 0,75 M4 - 166
GSI 250 E/F 1,0 M4 - 220
GSI 350 E/F 1,50 M6 - 350
GSI 600 E/F 1,50 M6 - 578

GSI 600 – 1800

TypeGSI 600GSI 900GSI 1200GSI 1800
Burner output6 - 578 kW27 - 1080 kW30 - 1650 kW40 - 1950 kW
Controlcontinuously variablecontinuously variablecontinuously variablecontinuously variable
Product ID no.CE0085AQ1024 DVGW testedCE0085AQ1024 DVGW testedCE0085AQ1024 DVGW testedCE0085AQ1024 DVGW tested
Mains connection230 V / 50 Hz230 V / 400 V / 50 Hz230 V / 400 V / 50 Hz230 V / 400 V / 50 Hz
Burner motor0.45 kW / 3.1 A / 2800 min-11.1 kW / 2.65 A / 2800 min-12.2 kW / 4.92 A / 2800 min-13.0 kW / 6.45 A / 2800 min-1
Gas burner control unitLMV37LMV37LMV37LMV37
Ignition transformer1,000 V / 23 mA10,000 V / 23 mA10,000 V / 23 mA10,000 V / 23 mA
Gas pressure20 - 100 mbar20 - 100 mbar20 - 100 mbar20 - 100 mbar
Gas flow rate0.6 - 55 m³/h2.4 - 98 m³/h2.8 - 164 m³/h3.8 - 191 m³/h
Max. turndown ratio1 : 951 : 401 : 551 : 66
Weight48 kg80 kg116 kg120 kg
Burner connectionR 1½ "R 1½ "R 2 "R 2 "
Order no.5518 527 2025518 528 210-25518 529 1855518 529 211
Burner output6 - 578 kW
Controlcontinuously variable
Product ID no.CE0085AQ1024 DVGW tested
Mains connection230 V / 50 Hz
Burner motor0.45 kW / 3.1 A / 2800 min-1
Gas burner control unitLMV37
Ignition transformer1,000 V / 23 mA
Gas pressure20 - 100 mbar
Gas flow rate0.6 - 55 m³/h
Max. turndown ratio1 : 95
Weight48 kg
Burner connectionR 1½ "
Order no.5518 527 202
Burner output27 - 1080 kW
Controlcontinuously variable
Product ID no.CE0085AQ1024 DVGW tested
Mains connection230 V / 400 V / 50 Hz
Burner motor1.1 kW / 2.65 A / 2800 min-1
Gas burner control unitLMV37
Ignition transformer10,000 V / 23 mA
Gas pressure20 - 100 mbar
Gas flow rate2.4 - 98 m³/h
Max. turndown ratio1 : 40
Weight80 kg
Burner connectionR 1½ "
Order no.5518 528 210-2
Burner output30 - 1650 kW
Controlcontinuously variable
Product ID no.CE0085AQ1024 DVGW tested
Mains connection230 V / 400 V / 50 Hz
Burner motor2.2 kW / 4.92 A / 2800 min-1
Gas burner control unitLMV37
Ignition transformer10,000 V / 23 mA
Gas pressure20 - 100 mbar
Gas flow rate2.8 - 164 m³/h
Max. turndown ratio1 : 55
Weight116 kg
Burner connectionR 2 "
Order no.5518 529 185
Burner output40 - 1950 kW
Controlcontinuously variable
Product ID no.CE0085AQ1024 DVGW tested
Mains connection230 V / 400 V / 50 Hz
Burner motor3.0 kW / 6.45 A / 2800 min-1
Gas burner control unitLMV37
Ignition transformer10,000 V / 23 mA
Gas pressure20 - 100 mbar
Gas flow rate3.8 - 191 m³/h
Max. turndown ratio1 : 66
Weight120 kg
Burner connectionR 2 "
Order no.5518 529 211

Special designs: burner design to TRD 412 · with three-phase motor · flame tube extension of 100 - 1000 mm possible · potentiometer built into the servo motor · continuously running fan with differential pressure switch and three-way valve

Output ranges in kW (values apply to natural gas, pressure stated as gas flow pressure)

Type20 mbar25 mbar30 mbar
GSI 900 with gas valve train DN 1.5"27 - 50027 - 660
GSI 900 with gas valve train DN 2"27 - 55027 - 76027 - 960
GSI 900 with gas valve train DN 6527 - 78027 - 1080
GSI 1200 with gas valve train DN 2"30 - 75030 - 96030 - 1200
GSI 1200 with gas valve train DN 6530 - 115030 - 1650
GSI 1200 with gas valve train DN 8030 - 1650
GSI 1800 with gas valve train DN 6530 - 100030 - 130030 - 1600
GSI 1800 with gas valve train DN 8030 - 135030 - 1950
GSI 1800 with gas valve train DN 10030 - 1950
Your benefits at a glance
Maximum turndown ratio
Up to 1:95 for precise adaptation to heat demand. Continuous modulation enables exact temperature control even in the lower control range.
Up to 15% energy savings
Energy efficiency
Low electrical power consumption. Electrical primary energy demand is up to 20% lower than for competitor products.
Up to 20% lower than the competition
Flexible integration
Bus connection and building automation for modern plants. Compatible with all common control systems and Industry 4.0.
Future-proof investment
Longevity
Robust construction for demanding industrial processes. Average service life of more than 15 years.
Minimal maintenance costs