
Indirect-heating boiler
With a single coil
All the water is heated right to the bottom
- Volume: 100—5000 L
- Models: 14
- Vessel: 6 bar
Two independent coils let you connect two heat sources to a single tank — for example a boiler and a solar collector or heat pump. The lower coil heats the whole volume and removes the legionella risk.

Separate circuits N2–N4 and N5–N6 — two heat sources on one tank.
The low coil position heats the entire volume of the vessel.
Port N3 — hot water reaches the tap without waiting.
42 kg/m³ HCFC-free polyurethane foam and a Termowen outer jacket.
The full model range. The table scrolls horizontally.
| Model | VMEX 160 | VMEX 200 | VMEX 300 | VMEX 400 | VMEX 500 | VMEX 800 | VMEX 1000 | VMEX 1500 | VMEX 2000 | VMEX 2500 | VMEX 3000 | VMEX 4000 | VMEX 5000 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| VolumeV (L) | 160 | 200 | 300 | 400 | 500 | 800 | 1000 | 1500 | 2000 | 2500 | 3000 | 4000 | 5000 |
| DiameterD (mm) | 590 | 590 | 590 | 750 | 750 | 950 | 950 | 1120 | 1260 | 1460 | 1460 | 1710 | 1710 |
| HeightH (mm) | 1060 | 1300 | 1810 | 1380 | 1620 | 1670 | 2010 | 2250 | 2250 | 2200 | 2600 | 2600 | 3000 |
| Water inlet / outletN1–N7 (in) | ¾″ | ¾″ | 1″ | 1″ | 1″ | 1¼″ | 1¼″ | 1¼″ | 1¼″ | 1½″ | 1½″ | 2″ | 2″ |
| Coils inlet / outletN2–N4 · N5–N6 (in) | 1″ | 1″ | 1″ | 1″ | 1″ | 1¼″ | 1¼″ | 1¼″ | 1¼″ | 1¼″ | 1¼″ | 1¼″ | 1¼″ |
| RecirculationN3 (in) | ¾″ | ¾″ | 1″ | 1″ | 1″ | 1¼″ | 1¼″ | 1¼″ | 1¼″ | 1½″ | 1½″ | 2″ | 2″ |
| Magnesium anodeN8 (in) | 1¼″ | 1¼″ | 1¼″ | 1¼″ | 1¼″ | 1¼″ | 1¼″ | 1¼″ | 1¼″ | 1¼″ | 1¼″ | 1¼″ | 1¼″ |
| ThermometerN9 (in) | ½″ | ½″ | ½″ | ½″ | ½″ | ½″ | ½″ | ½″ | ½″ | ½″ | ½″ | ½″ | ½″ |
| Inspection hatchN11 (in) | 4″ | 4″ | 4″ | 4″ | 4″ | 5″ | 5″ | 5″ | 5″ | 5″ | 5″ | 5″ | 5″ |
| DrainN12 (in) | 1¼″ | 1¼″ | 1¼″ | 1¼″ | 1¼″ | 1¼″ | 1¼″ | 1¼″ | 1¼″ | 1¼″ | 1¼″ | 1¼″ | 1¼″ |
| Dry weightW (kg) | 59 | 89 | 108 | 115 | 160 | 247 | 300 | 410 | 583 | 678 | 790 | 975 | 1240 |
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