Drazice OKC 80 (1101208101)
 | Outdated Product High-quality combined storage boiler with a capacity of 75 liters from one of the leading European manufacturers of domestic water heaters. Designed exclusively for wall mounting in a vertical position. In addition to heating water with a built-in "dry" tubular electric heater powered by the household power supply, the water heater can be operated in combination with a heating system during the heating season or with solar thermal systems, for example, with available flat solar collectors in the summer. The surface area of the built-in tubular spiral heat exchanger, through which the heated coolant is passed, is 0.41 m2 and this is enough to transfer an impressive thermal power of 7-9 kW. At a heating circuit temperature of 80 °C and a flow rate of 720 L/h, the full volume of the Drazice O...KC 80 water heater is heated from 10 to 60 °C in about 32 minutes. When operating a “dry” tubular electric heater with a power of 2000 W, this process takes much longer and the same 60 °C is reached in about 150 minutes. The inner surface of the steel tank is coated with a special heat-resistant enamel and additionally protected from corrosion by an enlarged magnesium anode. The design of the water heater provides a service hatch that allows you to perform internal work to remove scale, sediment and water stone. There is high-quality polyurethane foam insulation (up to 42 mm). |
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High-quality combined storage boiler with a capacity of 75 liters from one of the leading European manufacturers of domestic water heaters. Designed exclusively for wall mounting in a vertical position. In addition to heating water with a built-in "dry" tubular electric heater powered by the household power supply, the water heater can be operated in combination with a heating system during the heating season or with solar thermal systems, for example, with available flat solar collectors in the summer.
The surface area of the built-in tubular spiral heat exchanger, through which the heated coolant is passed, is 0.41 m2 and this is enough to transfer an impressive thermal power of 7-9 kW. At a heating circuit temperature of 80 °C and a flow rate of 720 L/h, the full volume of the Drazice OKC 80 water heater is heated from 10 to 60 °C in about 32 minutes. When operating a “dry” tubular electric heater with a power of 2000 W, this process takes much longer and the same 60 °C is reached in about 150 minutes. The inner surface of the steel tank is coated with a special heat-resistant enamel and additionally protected from corrosion by an enlarged magnesium anode. The design of the water heater provides a service hatch that allows you to perform internal work to remove scale, sediment and water stone. There is high-quality polyurethane foam insulation (up to 42 mm).
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Drazice 2026 - new arrivals, bestsellers, and the most relevant models Drazice.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Drazice 2026 - new arrivals, bestsellers, and the most relevant models Drazice.
Which is better: wet or dry heating element in a water heater?Learning the design features, pros and cons of "wet" and "dry" heating elements in water heaters
Detailed FAQ on storage water heatersWe answer the most common questions regarding the installation and operation of storage water heaters
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Model overview based on user reviews
The Drazice OKC is a modern combined boiler that offers versatility by being heated through a solid fuel boiler during the heating season and a "dry" ceramic tubular heater in the summer. This design enhances heat transfer and minimizes scale formation, making maintenance straightforward. The boiler features a built-in spiral heat exchanger and is equipped with two thermostats for operation and safety. Its internals are protected by high-quality enamel to prevent corrosion. However, some users have noted that the tank heats up slowly and the thermometer's placement makes it difficult to read. Despite these issues, the Drazice OKC is considered a high-quality Czech product suitable for private households. However, there are concerns about durability, as one user reported a leak after two years of service, indicating potential serious flaws in some models.
Pros
Cons
Personally, for me, Czechs are almost like Germans. Well, not in the literal sense, they are still Slavs by origin, but in their attitude to work and in terms of the quality of Czech goods, they stand out. Therefore, I chose not the domestic Atlantic and not the Chinese Ariston, but this 100% Czech brand. I think that this is one of the most affordable really high-quality options. This is a modern combined boiler, which during the heating season is heated by the heating circuit of a solid fuel boiler (also Czech, by the way), and in the summer it is warmed by a "dry" ceramic tubular heater. The advantage of such a heating element (TEN) can be considered an increased heat transfer area, which is carried out through the wall of the steel bulb, and the absence of scale formation directly on the heating element (TEN) itself. Moreover, if it breaks down, replacement will be quite simple. There is no need to disassemble or dismantle the tank from the system; it is enough to just remove the bottom cover. Heating from the boiler is done through a built-in spiral heat exchanger with an area of just under half a square meter and designed for an impressive pressure of up to 10 atm. The device is equipped with two thermostats – operating and safety ones. To prevent corrosion, all the internals are protected by high-quality enamel, which does not crack at water temperature fluctuations. A special service hatch is provided for maintenance. And when heated from the heating circuit of a solid fuel boiler and with electrical power, the tank heats up slowly, if not very slowly. The tank is suspended from the ceiling and the thermometer located in its upper part turned out to be very high, the readings are not very visible. Yes, and sometimes he cheats decently. |
No Leaked after 2 years of service use Drazice OKC 100 more than year |
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Additional features water heater Drazice OKC 80:
- Frost protection
- Thermometer
- Model OKC 80 NTR/Z — no dry ceramic heat element
| Drazice | OKC 80 | OKC 100 | OKC 125 | OKC 160 | OKC 180 | OKC 200 |
| Rated power of the heat exchanger (heat exchanger + heating element), W | 11000 | 19000 | 19000 | 19000 | 19200 | 19200 |
| Tank volume, L | 75 | 95 | 120 | 147 | 175 | 195 |
| Heat exchanger surface area, m² | 0.41 | 0.68 | 0.68 | 0.68 | 0.68 | 0.68 |
| Heating time up to 60°C, min | 32 | 23 | 28 | 35 | 40 | 45 |
| Instrument dimensions (HxWxD), mm | 736x524x524 | 881x524x524 | 1046x524x524 | 1235x524x524 | 1200x584x584 | 1300x584x584 |
| Device weight, kg | 42 | 52 | 58 | 66 | 76 | 81 |
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