IGS-2 - Two-pass hot-water boiler

IGS-2

Two-pass hot-water boiler

An efficient, reliable and long-lasting heating solution for residential and industrial buildings.

35 - 3,488 kWheat output
92.9%max. efficiency
30 modelsin one series

A two-pass fire-tube hot-water boiler: 30 models, heat output from 30,000 to 3,000,000 kcal/h and efficiency of up to 92.9%.

  • Construction

    Efficiency in
    every detail

    IGS-2 - Construction
  • 1350°C

    Gas-tightness test of the door insulation

    The front door insulation is made of refractory materials, with gas tightness tested at 1350°C

  • High output

    A large combustion chamber (furnace) and highly conductive heat-exchange surfaces deliver efficient performance

  • Fast start-up

    Fast start-up and hot-water production

  • Two-way door

    The boiler door can open in either direction

  • Minimal heat loss

    Aluminium foil and high-density insulation keep radiation and heat losses to a minimum

  • Long-lasting casing

    The outer casing panels are made of double-coated pre-painted steel and last for many years

  • 30

    models in one series

    Heat output from 30,000 to 3,000,000 kcal/h, 35 - 3,488 kW.

Model configurator

Pick the output, the boiler follows.

Drag the slider: figures, dimensions and the table follow the selected model.

ModelIGS-2 200
233kWheat output
200,000kcal/hheat output
92.6%efficiency at full load
4baroperating pressure
IGS-2C = 1430 mm
  • B · Overall width910 mm
  • C · Length1430 mm
  • E · Flue outlet749 mm
  • Water connection height1100 mm
  • Weight (no casing)510 kg
  • Water volume200 L
  • ØD₁ · Flue250 mm
  • ØD₂ · Hot water out76.1x2.9 inch / mm
  • ØD₃ · Water in76.1x2.9 inch / mm
All models

30 models, one series.

Tap a model to see all of its specifications.

IGS-23035 kW30,000 kcal/h92.7 %776 mm134 kg

Performance

Rated heat output
35 kW
Rated heat output
30,000 kcal/h
Efficiency at full load
92.7 %
Operating pressure
3 bar
Standby loss
0.17 %
Furnace pressure
0.180 mbar
Water-side resistance
0.390 mbar

Dimensions and weight

B - Overall width (with door)
660 mm
C - Length
776 mm
Water connection height
773 mm
E - Flue gas outlet connection height
528 mm
Weight (without casing)
134 kg
Water volume
50 L

Connections

ØD₁ - Flue diameter
150 mm
ØD₂ - Hot water outlet
1 1/4" inch / mm
D - Expansion tank outlet
- inch
ØD₃ - Water inlet
1 1/4" inch / mm
F - Expansion tank inlet
3/4" inch
ØD₄ - Fill and drain
1/2" inch
ØD₅ - Condensate outlet
1/2" inch
IGS-24047 kW40,000 kcal/h92.3 %876 mm160 kg

Performance

Rated heat output
47 kW
Rated heat output
40,000 kcal/h
Efficiency at full load
92.3 %
Operating pressure
3 bar
Standby loss
0.15 %
Furnace pressure
0.250 mbar
Water-side resistance
0.640 mbar

Dimensions and weight

B - Overall width (with door)
660 mm
C - Length
876 mm
Water connection height
773 mm
E - Flue gas outlet connection height
528 mm
Weight (without casing)
160 kg
Water volume
57 L

Connections

ØD₁ - Flue diameter
150 mm
ØD₂ - Hot water outlet
1 1/4" inch / mm
D - Expansion tank outlet
- inch
ØD₃ - Water inlet
1 1/4" inch / mm
F - Expansion tank inlet
3/4" inch
ØD₄ - Fill and drain
1/2" inch
ØD₅ - Condensate outlet
1/2" inch
IGS-25058 kW50,000 kcal/h92.5 %976 mm165 kg

Performance

Rated heat output
58 kW
Rated heat output
50,000 kcal/h
Efficiency at full load
92.5 %
Operating pressure
3 bar
Standby loss
0.13 %
Furnace pressure
0.260 mbar
Water-side resistance
0.770 mbar

Dimensions and weight

B - Overall width (with door)
660 mm
C - Length
976 mm
Water connection height
773 mm
E - Flue gas outlet connection height
528 mm
Weight (without casing)
165 kg
Water volume
70 L

Connections

ØD₁ - Flue diameter
150 mm
ØD₂ - Hot water outlet
1 1/4" inch / mm
D - Expansion tank outlet
- inch
ØD₃ - Water inlet
1 1/4" inch / mm
F - Expansion tank inlet
3/4" inch
ØD₄ - Fill and drain
1/2" inch
ØD₅ - Condensate outlet
1/2" inch
IGS-26070 kW60,000 kcal/h92.6 %1025 mm194 kg

Performance

Rated heat output
70 kW
Rated heat output
60,000 kcal/h
Efficiency at full load
92.6 %
Operating pressure
3 bar
Standby loss
0.13 %
Furnace pressure
0.610 mbar
Water-side resistance
0.840 mbar

Dimensions and weight

B - Overall width (with door)
720 mm
C - Length
1025 mm
Water connection height
825 mm
E - Flue gas outlet connection height
557 mm
Weight (without casing)
194 kg
Water volume
90 L

Connections

ØD₁ - Flue diameter
200 mm
ØD₂ - Hot water outlet
1 1/2" inch / mm
D - Expansion tank outlet
- inch
ØD₃ - Water inlet
1 1/2" inch / mm
F - Expansion tank inlet
1" inch
ØD₄ - Fill and drain
1/2" inch
ØD₅ - Condensate outlet
1/2" inch
IGS-27081 kW70,000 kcal/h92.3 %1125 mm214 kg

Performance

Rated heat output
81 kW
Rated heat output
70,000 kcal/h
Efficiency at full load
92.3 %
Operating pressure
3 bar
Standby loss
0.12 %
Furnace pressure
0.610 mbar
Water-side resistance
0.960 mbar

Dimensions and weight

B - Overall width (with door)
720 mm
C - Length
1125 mm
Water connection height
825 mm
E - Flue gas outlet connection height
557 mm
Weight (without casing)
214 kg
Water volume
98 L

Connections

ØD₁ - Flue diameter
200 mm
ØD₂ - Hot water outlet
1 1/2" inch / mm
D - Expansion tank outlet
- inch
ØD₃ - Water inlet
1 1/2" inch / mm
F - Expansion tank inlet
1" inch
ØD₄ - Fill and drain
3/4" inch
ØD₅ - Condensate outlet
3/4" inch
IGS-28093 kW80,000 kcal/h92.6 %1125 mm235 kg

Performance

Rated heat output
93 kW
Rated heat output
80,000 kcal/h
Efficiency at full load
92.6 %
Operating pressure
3 bar
Standby loss
0.11 %
Furnace pressure
0.650 mbar
Water-side resistance
1.320 mbar

Dimensions and weight

B - Overall width (with door)
720 mm
C - Length
1125 mm
Water connection height
825 mm
E - Flue gas outlet connection height
557 mm
Weight (without casing)
235 kg
Water volume
97 L

Connections

ØD₁ - Flue diameter
200 mm
ØD₂ - Hot water outlet
1 1/2" inch / mm
D - Expansion tank outlet
- inch
ØD₃ - Water inlet
1 1/2" inch / mm
F - Expansion tank inlet
1" inch
ØD₄ - Fill and drain
3/4" inch
ØD₅ - Condensate outlet
3/4" inch
IGS-2100116 kW100,000 kcal/h92.5 %1180 mm246 kg

Performance

Rated heat output
116 kW
Rated heat output
100,000 kcal/h
Efficiency at full load
92.5 %
Operating pressure
3 bar
Standby loss
0.11 %
Furnace pressure
0.710 mbar
Water-side resistance
1.710 mbar

Dimensions and weight

B - Overall width (with door)
860 mm
C - Length
1180 mm
Water connection height
856 mm
E - Flue gas outlet connection height
557 mm
Weight (without casing)
246 kg
Water volume
122 L

Connections

ØD₁ - Flue diameter
200 mm
ØD₂ - Hot water outlet
2" inch / mm
D - Expansion tank outlet
- inch
ØD₃ - Water inlet
2" inch / mm
F - Expansion tank inlet
1" inch
ØD₄ - Fill and drain
3/4" inch
ØD₅ - Condensate outlet
3/4" inch
IGS-2120140 kW120,000 kcal/h92.7 %1427 mm355 kg

Performance

Rated heat output
140 kW
Rated heat output
120,000 kcal/h
Efficiency at full load
92.7 %
Operating pressure
3 bar
Standby loss
0.10 %
Furnace pressure
1.110 mbar
Water-side resistance
2.220 mbar

Dimensions and weight

B - Overall width (with door)
860 mm
C - Length
1427 mm
Water connection height
994 mm
E - Flue gas outlet connection height
631 mm
Weight (without casing)
355 kg
Water volume
186 L

Connections

ØD₁ - Flue diameter
200 mm
ØD₂ - Hot water outlet
2" inch / mm
D - Expansion tank outlet
- inch
ØD₃ - Water inlet
2" inch / mm
F - Expansion tank inlet
1" inch
ØD₄ - Fill and drain
3/4" inch
ØD₅ - Condensate outlet
3/4" inch
IGS-2125145 kW125,000 kcal/h92.6 %1427 mm358 kg

Performance

Rated heat output
145 kW
Rated heat output
125,000 kcal/h
Efficiency at full load
92.6 %
Operating pressure
3 bar
Standby loss
0.1 %
Furnace pressure
1.020 mbar
Water-side resistance
3.100 mbar

Dimensions and weight

B - Overall width (with door)
860 mm
C - Length
1427 mm
Water connection height
994 mm
E - Flue gas outlet connection height
631 mm
Weight (without casing)
358 kg
Water volume
183 L

Connections

ØD₁ - Flue diameter
200 mm
ØD₂ - Hot water outlet
2" inch / mm
D - Expansion tank outlet
- inch
ØD₃ - Water inlet
2" inch / mm
F - Expansion tank inlet
1" inch
ØD₄ - Fill and drain
3/4" inch
ØD₅ - Condensate outlet
3/4" inch
IGS-2140163 kW140,000 kcal/h92.6 %1427 mm361 kg

Performance

Rated heat output
163 kW
Rated heat output
140,000 kcal/h
Efficiency at full load
92.6 %
Operating pressure
3 bar
Standby loss
0.1 %
Furnace pressure
1.160 mbar
Water-side resistance
2.160 mbar

Dimensions and weight

B - Overall width (with door)
860 mm
C - Length
1427 mm
Water connection height
994 mm
E - Flue gas outlet connection height
631 mm
Weight (without casing)
361 kg
Water volume
178 L

Connections

ØD₁ - Flue diameter
200 mm
ØD₂ - Hot water outlet
2" inch / mm
D - Expansion tank outlet
- inch
ØD₃ - Water inlet
2" inch / mm
F - Expansion tank inlet
1" inch
ØD₄ - Fill and drain
3/4" inch
ØD₅ - Condensate outlet
3/4" inch
IGS-2150174 kW150,000 kcal/h92.7 %1427 mm420 kg

Performance

Rated heat output
174 kW
Rated heat output
150,000 kcal/h
Efficiency at full load
92.7 %
Operating pressure
3 bar
Standby loss
0.11 %
Furnace pressure
1.170 mbar
Water-side resistance
4.100 mbar

Dimensions and weight

B - Overall width (with door)
860 mm
C - Length
1427 mm
Water connection height
1020 mm
E - Flue gas outlet connection height
631 mm
Weight (without casing)
420 kg
Water volume
173 L

Connections

ØD₁ - Flue diameter
200 mm
ØD₂ - Hot water outlet
76.1x2.9 inch / mm
D - Expansion tank outlet
1 1/4" inch
ØD₃ - Water inlet
76.1x2.9 inch / mm
F - Expansion tank inlet
1" inch
ØD₄ - Fill and drain
3/4" inch
ØD₅ - Condensate outlet
3/4" inch
IGS-2160186 kW160,000 kcal/h92.6 %1427 mm420 kg

Performance

Rated heat output
186 kW
Rated heat output
160,000 kcal/h
Efficiency at full load
92.6 %
Operating pressure
3 bar
Standby loss
0.11 %
Furnace pressure
1.280 mbar
Water-side resistance
2.750 mbar

Dimensions and weight

B - Overall width (with door)
860 mm
C - Length
1427 mm
Water connection height
1020 mm
E - Flue gas outlet connection height
631 mm
Weight (without casing)
420 kg
Water volume
173 L

Connections

ØD₁ - Flue diameter
200 mm
ØD₂ - Hot water outlet
76.1x2.9 inch / mm
D - Expansion tank outlet
1 1/4" inch
ØD₃ - Water inlet
76.1x2.9 inch / mm
F - Expansion tank inlet
1" inch
ØD₄ - Fill and drain
3/4" inch
ØD₅ - Condensate outlet
3/4" inch
IGS-2180209 kW180,000 kcal/h92.5 %1477 mm430 kg

Performance

Rated heat output
209 kW
Rated heat output
180,000 kcal/h
Efficiency at full load
92.5 %
Operating pressure
3 bar
Standby loss
0.09 %
Furnace pressure
1.350 mbar
Water-side resistance
3.100 mbar

Dimensions and weight

B - Overall width (with door)
860 mm
C - Length
1477 mm
Water connection height
1020 mm
E - Flue gas outlet connection height
631 mm
Weight (without casing)
430 kg
Water volume
174 L

Connections

ØD₁ - Flue diameter
200 mm
ØD₂ - Hot water outlet
76.1x2.9 inch / mm
D - Expansion tank outlet
1 1/4" inch
ØD₃ - Water inlet
76.1x2.9 inch / mm
F - Expansion tank inlet
1" inch
ØD₄ - Fill and drain
3/4" inch
ØD₅ - Condensate outlet
3/4" inch
IGS-2200233 kW200,000 kcal/h92.6 %1430 mm510 kg

Performance

Rated heat output
233 kW
Rated heat output
200,000 kcal/h
Efficiency at full load
92.6 %
Operating pressure
4 bar
Standby loss
0.33 %
Furnace pressure
1.54 mbar
Water-side resistance
11 mbar

Dimensions and weight

B - Overall width (with door)
910 mm
C - Length
1430 mm
Water connection height
1100 mm
E - Flue gas outlet connection height
749 mm
Weight (without casing)
510 kg
Water volume
200 L

Connections

ØD₁ - Flue diameter
250 mm
ØD₂ - Hot water outlet
76.1x2.9 inch / mm
D - Expansion tank outlet
1 1/4" inch
ØD₃ - Water inlet
76.1x2.9 inch / mm
F - Expansion tank inlet
1 1/4" inch
ØD₄ - Fill and drain
3/4" inch
ØD₅ - Condensate outlet
3/4" inch
IGS-2250291 kW250,000 kcal/h92.8 %1430 mm540 kg

Performance

Rated heat output
291 kW
Rated heat output
250,000 kcal/h
Efficiency at full load
92.8 %
Operating pressure
4 bar
Standby loss
0.29 %
Furnace pressure
1.79 mbar
Water-side resistance
15 mbar

Dimensions and weight

B - Overall width (with door)
910 mm
C - Length
1430 mm
Water connection height
1100 mm
E - Flue gas outlet connection height
749 mm
Weight (without casing)
540 kg
Water volume
177 L

Connections

ØD₁ - Flue diameter
250 mm
ØD₂ - Hot water outlet
76.1x2.9 inch / mm
D - Expansion tank outlet
1 1/2" inch
ØD₃ - Water inlet
76.1x2.9 inch / mm
F - Expansion tank inlet
1 1/4" inch
ØD₄ - Fill and drain
3/4" inch
ØD₅ - Condensate outlet
3/4" inch
IGS-2300349 kW300,000 kcal/h92.9 %1740 mm835 kg

Performance

Rated heat output
349 kW
Rated heat output
300,000 kcal/h
Efficiency at full load
92.9 %
Operating pressure
4 bar
Standby loss
0.29 %
Furnace pressure
1.48 mbar
Water-side resistance
13 mbar

Dimensions and weight

B - Overall width (with door)
1050 mm
C - Length
1740 mm
Water connection height
1300 mm
E - Flue gas outlet connection height
825 mm
Weight (without casing)
835 kg
Water volume
300 L

Connections

ØD₁ - Flue diameter
300 mm
ØD₂ - Hot water outlet
88.9x3.2 inch / mm
D - Expansion tank outlet
1 1/2" inch
ØD₃ - Water inlet
88.9x3.2 inch / mm
F - Expansion tank inlet
1 1/4" inch
ØD₄ - Fill and drain
3/4" inch
ØD₅ - Condensate outlet
3/4" inch
IGS-2350407 kW350,000 kcal/h92.9 %1740 mm867 kg

Performance

Rated heat output
407 kW
Rated heat output
350,000 kcal/h
Efficiency at full load
92.9 %
Operating pressure
4 bar
Standby loss
0.26 %
Furnace pressure
1.65 mbar
Water-side resistance
14 mbar

Dimensions and weight

B - Overall width (with door)
1050 mm
C - Length
1740 mm
Water connection height
1300 mm
E - Flue gas outlet connection height
825 mm
Weight (without casing)
867 kg
Water volume
278 L

Connections

ØD₁ - Flue diameter
300 mm
ØD₂ - Hot water outlet
88.9x3.2 inch / mm
D - Expansion tank outlet
2" inch
ØD₃ - Water inlet
88.9x3.2 inch / mm
F - Expansion tank inlet
1 1/4" inch
ØD₄ - Fill and drain
3/4" inch
ØD₅ - Condensate outlet
3/4" inch
IGS-2400465 kW400,000 kcal/h92.6 %1970 mm957 kg

Performance

Rated heat output
465 kW
Rated heat output
400,000 kcal/h
Efficiency at full load
92.6 %
Operating pressure
4 bar
Standby loss
0.25 %
Furnace pressure
1.6 mbar
Water-side resistance
13 mbar

Dimensions and weight

B - Overall width (with door)
1050 mm
C - Length
1970 mm
Water connection height
1300 mm
E - Flue gas outlet connection height
825 mm
Weight (without casing)
957 kg
Water volume
325 L

Connections

ØD₁ - Flue diameter
300 mm
ØD₂ - Hot water outlet
88.9x3.2 inch / mm
D - Expansion tank outlet
2" inch
ØD₃ - Water inlet
88.9x3.2 inch / mm
F - Expansion tank inlet
1 1/4" inch
ØD₄ - Fill and drain
3/4" inch
ØD₅ - Condensate outlet
3/4" inch
IGS-2500581 kW500,000 kcal/h92.6 %2010 mm1280 kg

Performance

Rated heat output
581 kW
Rated heat output
500,000 kcal/h
Efficiency at full load
92.6 %
Operating pressure
4 bar
Standby loss
0.18 %
Furnace pressure
1.6 mbar
Water-side resistance
14 mbar

Dimensions and weight

B - Overall width (with door)
1250 mm
C - Length
2010 mm
Water connection height
1506 mm
E - Flue gas outlet connection height
960 mm
Weight (without casing)
1280 kg
Water volume
670 L

Connections

ØD₁ - Flue diameter
400 mm
ØD₂ - Hot water outlet
114.3x3.6 inch / mm
D - Expansion tank outlet
2" inch
ØD₃ - Water inlet
114.3x3.6 inch / mm
F - Expansion tank inlet
1 1/2" inch
ØD₄ - Fill and drain
3/4" inch
ØD₅ - Condensate outlet
3/4" inch
IGS-2600698 kW600,000 kcal/h92.8 %2010 mm1852 kg

Performance

Rated heat output
698 kW
Rated heat output
600,000 kcal/h
Efficiency at full load
92.8 %
Operating pressure
4 bar
Standby loss
0.18 %
Furnace pressure
1.83 mbar
Water-side resistance
17 mbar

Dimensions and weight

B - Overall width (with door)
1250 mm
C - Length
2010 mm
Water connection height
1506 mm
E - Flue gas outlet connection height
960 mm
Weight (without casing)
1852 kg
Water volume
612 L

Connections

ØD₁ - Flue diameter
400 mm
ØD₂ - Hot water outlet
114.3x3.6 inch / mm
D - Expansion tank outlet
2" inch
ØD₃ - Water inlet
114.3x3.6 inch / mm
F - Expansion tank inlet
1 1/2" inch
ØD₄ - Fill and drain
3/4" inch
ØD₅ - Condensate outlet
3/4" inch
IGS-2700814 kW700,000 kcal/h92.8 %2405 mm1826 kg

Performance

Rated heat output
814 kW
Rated heat output
700,000 kcal/h
Efficiency at full load
92.8 %
Operating pressure
4 bar
Standby loss
0.18 %
Furnace pressure
2.32 mbar
Water-side resistance
17 mbar

Dimensions and weight

B - Overall width (with door)
1460 mm
C - Length
2405 mm
Water connection height
1709 mm
E - Flue gas outlet connection height
1,048 mm
Weight (without casing)
1826 kg
Water volume
996 L

Connections

ØD₁ - Flue diameter
450 mm
ØD₂ - Hot water outlet
139.7x4 inch / mm
D - Expansion tank outlet
2 1/2" inch
ØD₃ - Water inlet
139.7x4 inch / mm
F - Expansion tank inlet
2" inch
ØD₄ - Fill and drain
1" inch
ØD₅ - Condensate outlet
3/4" inch
IGS-2800930 kW800,000 kcal/h92.9 %2405 mm1880 kg

Performance

Rated heat output
930 kW
Rated heat output
800,000 kcal/h
Efficiency at full load
92.9 %
Operating pressure
4 bar
Standby loss
0.18 %
Furnace pressure
2.55 mbar
Water-side resistance
19 mbar

Dimensions and weight

B - Overall width (with door)
1460 mm
C - Length
2405 mm
Water connection height
1709 mm
E - Flue gas outlet connection height
1,048 mm
Weight (without casing)
1880 kg
Water volume
955 L

Connections

ØD₁ - Flue diameter
450 mm
ØD₂ - Hot water outlet
139.7x4 inch / mm
D - Expansion tank outlet
2 1/2" inch
ØD₃ - Water inlet
139.7x4 inch / mm
F - Expansion tank inlet
2" inch
ØD₄ - Fill and drain
1" inch
ØD₅ - Condensate outlet
3/4" inch
IGS-29001047 kW900,000 kcal/h92.5 %2405 mm1940 kg

Performance

Rated heat output
1047 kW
Rated heat output
900,000 kcal/h
Efficiency at full load
92.5 %
Operating pressure
4 bar
Standby loss
0.18 %
Furnace pressure
2.81 mbar
Water-side resistance
23 mbar

Dimensions and weight

B - Overall width (with door)
1460 mm
C - Length
2405 mm
Water connection height
1709 mm
E - Flue gas outlet connection height
1,048 mm
Weight (without casing)
1940 kg
Water volume
956 L

Connections

ØD₁ - Flue diameter
450 mm
ØD₂ - Hot water outlet
139.7x4 inch / mm
D - Expansion tank outlet
2 1/2" inch
ØD₃ - Water inlet
139.7x4 inch / mm
F - Expansion tank inlet
2" inch
ØD₄ - Fill and drain
1" inch
ØD₅ - Condensate outlet
3/4" inch
IGS-210001163 kW1,000 000 kcal/h92.2 %2405 mm2030 kg

Performance

Rated heat output
1163 kW
Rated heat output
1,000 000 kcal/h
Efficiency at full load
92.2 %
Operating pressure
4 bar
Standby loss
0.18 %
Furnace pressure
3 mbar
Water-side resistance
24 mbar

Dimensions and weight

B - Overall width (with door)
1460 mm
C - Length
2405 mm
Water connection height
1709 mm
E - Flue gas outlet connection height
1,048 mm
Weight (without casing)
2030 kg
Water volume
890 L

Connections

ØD₁ - Flue diameter
450 mm
ØD₂ - Hot water outlet
139.7x4 inch / mm
D - Expansion tank outlet
2 1/2" inch
ØD₃ - Water inlet
139.7x4 inch / mm
F - Expansion tank inlet
2" inch
ØD₄ - Fill and drain
1" inch
ØD₅ - Condensate outlet
3/4" inch
IGS-212501453 kW1,250 000 kcal/h90.4 %2806 mm2708 kg

Performance

Rated heat output
1453 kW
Rated heat output
1,250 000 kcal/h
Efficiency at full load
90.4 %
Operating pressure
4 bar
Standby loss
0.16 %
Furnace pressure
3.66 mbar
Water-side resistance
29 mbar

Dimensions and weight

B - Overall width (with door)
1560 mm
C - Length
2806 mm
Water connection height
1815 mm
E - Flue gas outlet connection height
1,028 mm
Weight (without casing)
2708 kg
Water volume
1,375 L

Connections

ØD₁ - Flue diameter
500 mm
ØD₂ - Hot water outlet
168.3x4.5 inch / mm
D - Expansion tank outlet
2 1/2" inch
ØD₃ - Water inlet
168.3x4.5 inch / mm
F - Expansion tank inlet
2 1/2" inch
ØD₄ - Fill and drain
1" inch
ØD₅ - Condensate outlet
3/4" inch
IGS-215001744 kW1,500 000 kcal/h88.9 %3108 mm3030 kg

Performance

Rated heat output
1744 kW
Rated heat output
1,500 000 kcal/h
Efficiency at full load
88.9 %
Operating pressure
4 bar
Standby loss
0.16 %
Furnace pressure
3.85 mbar
Water-side resistance
30 mbar

Dimensions and weight

B - Overall width (with door)
1560 mm
C - Length
3108 mm
Water connection height
1815 mm
E - Flue gas outlet connection height
1,028 mm
Weight (without casing)
3030 kg
Water volume
1,582 L

Connections

ØD₁ - Flue diameter
500 mm
ØD₂ - Hot water outlet
168.3x4.5 inch / mm
D - Expansion tank outlet
3" inch
ØD₃ - Water inlet
168.3x4.5 inch / mm
F - Expansion tank inlet
2 1/2" inch
ØD₄ - Fill and drain
1" inch
ØD₅ - Condensate outlet
3/4" inch
IGS-217502035 kW1,750 000 kcal/h88.9 %3005 mm3462 kg

Performance

Rated heat output
2035 kW
Rated heat output
1,750 000 kcal/h
Efficiency at full load
88.9 %
Operating pressure
4 bar
Standby loss
0.16 %
Furnace pressure
4.76 mbar
Water-side resistance
36 mbar

Dimensions and weight

B - Overall width (with door)
1660 mm
C - Length
3005 mm
Water connection height
1922 mm
E - Flue gas outlet connection height
1,280 mm
Weight (without casing)
3462 kg
Water volume
1,660 L

Connections

ØD₁ - Flue diameter
500 mm
ØD₂ - Hot water outlet
168.3x4.6 inch / mm
D - Expansion tank outlet
3" inch
ØD₃ - Water inlet
168.3x4.6 inch / mm
F - Expansion tank inlet
2 1/2" inch
ØD₄ - Fill and drain
3/4" inch
ØD₅ - Condensate outlet
3/4" inch
IGS-220002326 kW2,000 000 kcal/h88.9 %3272 mm3750 kg

Performance

Rated heat output
2326 kW
Rated heat output
2,000 000 kcal/h
Efficiency at full load
88.9 %
Operating pressure
4 bar
Standby loss
0.16 %
Furnace pressure
4.96 mbar
Water-side resistance
48 mbar

Dimensions and weight

B - Overall width (with door)
1660 mm
C - Length
3272 mm
Water connection height
1922 mm
E - Flue gas outlet connection height
1,280 mm
Weight (without casing)
3750 kg
Water volume
1,820 L

Connections

ØD₁ - Flue diameter
500 mm
ØD₂ - Hot water outlet
168.3x4.6 inch / mm
D - Expansion tank outlet
4" inch
ØD₃ - Water inlet
168.3x4.6 inch / mm
F - Expansion tank inlet
2 1/2" inch
ØD₄ - Fill and drain
3/4" inch
ØD₅ - Condensate outlet
3/4" inch
IGS-225002907 kW2,500 000 kcal/h89.9 %3304 mm4870 kg

Performance

Rated heat output
2907 kW
Rated heat output
2,500 000 kcal/h
Efficiency at full load
89.9 %
Operating pressure
4 bar
Standby loss
0.16 %
Furnace pressure
5.00 mbar
Water-side resistance
49 mbar

Dimensions and weight

B - Overall width (with door)
1900 mm
C - Length
3304 mm
Water connection height
2177 mm
E - Flue gas outlet connection height
1,410 mm
Weight (without casing)
4870 kg
Water volume
2,572 L

Connections

ØD₁ - Flue diameter
600 mm
ØD₂ - Hot water outlet
219.1x4.5 inch / mm
D - Expansion tank outlet
4" inch
ØD₃ - Water inlet
219.1x4.5 inch / mm
F - Expansion tank inlet
2 1/2" inch
ØD₄ - Fill and drain
3/4" inch
ØD₅ - Condensate outlet
3/4" inch
IGS-230003488 kW3,000 000 kcal/h89.8 %3677 mm5920 kg

Performance

Rated heat output
3488 kW
Rated heat output
3,000 000 kcal/h
Efficiency at full load
89.8 %
Operating pressure
4 bar
Standby loss
0.16 %
Furnace pressure
4.44 mbar
Water-side resistance
50 mbar

Dimensions and weight

B - Overall width (with door)
2060 mm
C - Length
3677 mm
Water connection height
2331 mm
E - Flue gas outlet connection height
1,414 mm
Weight (without casing)
5920 kg
Water volume
3,385 L

Connections

ØD₁ - Flue diameter
600 mm
ØD₂ - Hot water outlet
219.1x5.9 inch / mm
D - Expansion tank outlet
4" inch
ØD₃ - Water inlet
219.1x5.9 inch / mm
F - Expansion tank inlet
3" inch
ØD₄ - Fill and drain
3/4" inch
ØD₅ - Condensate outlet
3/4" inch