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For more than 50 years we’ve perfected the stainless steel water heater. The ideal combination of premium materials, automated manufacturing and intelligent solutions makes our products last longer.

Domestic water heaters, direct and indirect

The market's widest product range

Unbeatable performance and pioneering design

Serie
S
120-300 L

S 150 - 3 kW / 1 × 230 V
S 200 - 3 kW / 1 × 230 V
S 250 - 3 kW / 1 × 230 V
S 300 - 3 kW / 1 × 230 V
2,5 Persons
3,5 Persons
4,5 Persons
5,5 Persons
⌀ 580 x H 950 mm
⌀ 580 x H 1260 mm
⌀ 580 x H 1470 mm
⌀ 580 x H 1710 mm
OSO: 80804552
OSO: 80804554
OSO: 80804555
OSO: 80804556

Integrated expansion vessel and pioneering design

Serie
SE
120–200 L

SE 200 - 2 kW / 1 × 230 V
3,5 Persons
⌀ 580 x H 1300 mm
OSO: 8000754

Hot water 3 x faster than standard hot water tanks

Serie
SX
150–300 L

SX 150 - 2+(2) kW / 1 × 230 V
SX 200 - 3+(3) kW / 1 × 230 V
SX 300 - 3+(3) kW / 1 × 230 V
3,5 Persons
4,5 Persons
6,5 Persons
⌀ 580 x H 950 mm
⌀ 580 x H 1260 mm
⌀ 580 x H 1710 mm
OSO: 8000652
OSO: 8000654
OSO: 8000656

The ultimate hot water cylinder for boilers

Serie
SC
150-300 L

SC 150 - 3 kW / 1 × 230 V + HX 0,8 m²
SC 200 - 3 kW / 1 × 230 V + HX 0,8 m²
SC 300 - 3 kW / 1x230V + HX 0,8 m²
3,0 Persons
4,0 Persons
6,0 Persons
⌀ 580 x H 950 mm
⌀ 580 x H 1260 mm
⌀ 580 x H 1710 mm
OSO: 8000952
OSO: 8000954
OSO: 8000956

Point of use water heater with full capacity in 8 minutes

Serie
N
5 L

N 5 - 3 kW / 1 × 230 V
0,5 Persons
⌀ L 250 × B 250 x H 500 mm
OSO: 8000051

Slim diameter and versatile installation on floor or wall

Serie
V
30–120 L

V 30 - 2 kW / 1 × 230 V
V 50 - 2 kW / 1 × 230 V
V 70 - 2 kW / 1 × 230 V
V 90 - 2 kW / 1 × 230 V
V 120 - 2 kW / 1 × 230 V
1,0 Persons
1,5 Persons
2,0 Persons
2,0 Persons
2,5 Persons
⌀ 430 x H 500 mm
⌀ 430 x H 710 mm
⌀ 430 x H 920 mm
⌀ 430 x H 1180 mm
⌀ 430 x H 1500 mm
OSO: 8000351
OSO: 8000352
OSO: 8000353
OSO: 8000354
OSO: 8000355

Slim diameter and connections underneath for tight spaces

Serie
W
30–120 L

W 30 - 2 kW / 1 × 230 V
W 50 - 2 kW / 1 × 230 V
W 70 - 2 kW / 1 × 230 V
W 90 - 2 kW / 1 × 230 V
W 120 - 2 kW / 1 × 230 V
W 30 - 2 kW / 1 × 230 V + MIX
W 50 - 2 kW / 1 × 230 V + MIX
W 70 - 2 kW / 1 × 230 V + MIX
W 90 - 2 kW / 1 × 230 V + MIX
W 120 - 2 kW / 1 × 230 V + MIX
1,0 Persons
1,5 Persons
2,0 Persons
2,0 Persons
2,5 Persons
1,0 Persons
1,5 Persons
2,0 Persons
2,0 Persons
2,5 Persons
⌀ 430 x H 500 mm
⌀ 430 x H 710 mm
⌀ 430 x H 920 mm
⌀ 430 x H 1180 mm
⌀ 430 x H 11500 mm
⌀ 430 x H 500 mm
⌀ 430 x H 710 mm
⌀ 430 x H 920 mm
⌀ 430 x H 1180 mm
⌀ 430 x H 1500 mm
OSO: 80620451
OSO: 80620452
OSO: 80620453
OSO: 80620454
OSO: 80620455
OSO: 8000451
OSO: 8000452
OSO: 8000453
OSO: 8000454
OSO: 8000455

All stainless steel for tough environments

Serie
DI
200–300 L

DI 200 - 3 kW / 1 × 230 V
DI 300 - 3 kW / 1 × 230 V
3,5 Persons
5,5 Persons
⌀ 580 x H 1260 mm
⌀ 580 x H 1710 mm
OSO: 8000402
OSO: 8000404

Ideal for boilers or inverter heat pumps

Serie
DC
120–300 L

DC 200 - 3 kW / 1 × 230 V + HX 0,8 m²
DC 300 - 3 kW / 1 × 230 V + HX 0,8 m²
4,0 Persons
5,0 Persons
⌀ 595 x H 1270 mm
⌀ 595 x H 1750 mm
OSO: 8000314
OSO: 8000316

Custom designed for heat pumps up to 10 kW

Serie
DGC
200–300 L

DGC 200 - 3 kW / 1 × 230 V + HX 1,4 m²
DGC 300 - 3 kW / 1 × 230 V + HX 1,8 m²
3,0 Persons
5,0 Persons
⌀ 595 x H 1270 mm
⌀ 595 x H 1750 mm
OSO: 8000302
OSO: 8000304

Ultimate energy flexibiliy for hot water

Serie
DTC
200–300 L

DTC 200 - 3 kW / 1 × 230 V + HX 0,8 + 0,8 m²
DTC 300 - 3 kW / 1 × 230 V + HX 0,8 + 0,8 m²
4,0 Persons
6,0 Persons
⌀ 595 x H 1270 mm
⌀ 595 x H 1750 mm
OSO: 8000306
OSO: 8000308

The ultimate tank-in-tank unit for heat pumps up to 15kW

Serie
OC
300–360 L

OC 300 - 3 + 9 kW / 1 / 3 × 230 V LT + HX 0,8 m²
OC 360 - 3 + 15 kW / 1 / 3 + 230 V LT + HX 0,8 m²
5,0 Persons
7,0 Persons
⌀ 580 x H 1760 mm
⌀ 580 x H 1990 mm
OSO: 8000266
OSO: 8000267

The ultimate tank-in-tank unit for heat pumps up to 12kW

Serie
OGC
360 L

OGC 360 - 3 + 15 kW / 1 / 3 × 230 V LT + HX 1,8 m²
5,0 Persons
⌀ 580 x H 1990 mm
OSO: 8000277

Energy flexibility with unique tank-in-tank design for HP+Solar

Serie
OTC
400 L

OTC 400 - 3 + 9 kW / 1 / 3 × 230 V LT + HX 1,8 + 0,8 m²
5,0 Persons
⌀ 580 x H 2250 mm
OSO: 8000282