Drazice OKC 125 NTR
 | Outdated Product Type: storage; Energy source: indirect; Tank volume (L): 120; Power source: 230 V; Magnesium anode; Heating elements: 1; thermostat; overheat protection; safety valve; Pipe connection: side; Dimensions (cm): 98x52.4x52.4; |
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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 2025 - 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 2025 - 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 NTR is a robust and efficient indirect water heater, praised for its large volume capacity and excellent thermal insulation. With a capacity of 300 liters, it can provide up to 600-700 liters of hot water when diluted, making it ideal for extensive use. The product features a thick steel enameled tank with a special enamel coating resistant to temperature fluctuations, and a sacrificial magnesium anode for added protection. Users appreciate the large heat exchange area and the option to install an additional electric heater, which allows for flexibility in heating methods. However, the heater's substantial size and weight can pose challenges during installation. Additionally, when using the electric heater, frequent cleaning is required due to scale buildup, especially in areas with hard water. Overall, the Drazice OKC NTR is a voluminous and sturdy choice, offering reliable performance and convenience in maintenance.
Pros
Cons
Large volume. Three hundred liters of water at a temperature of around 80 degrees, when diluted, turn into 600-700 liters of just hot water for the shower. Large heat exchange area. The total area is about 150 square decimeters, which allows heating water from the heating circuit even at a relatively low temperature of the heating water. Excellent thermal insulation. Nearly 70 millimeters of foam polyurethane effectively retains the water temperature. In 12 hours of inactivity, only 4-5 degrees are lost. Option to install an additional electric heater. To have hot water in the shower even when the solid fuel boiler is not operating, for example in the summer, I purchased a branded Drazice TJ 7.5 heating element. With a nominal power of 7.5 kW, it heats 300 liters of water in just over three hours. Separate control systems for the heat exchanger (working from the heating circuit) and the electric heater. When operating on electricity, the heating element (TEN) quickly becomes covered with a thick layer of scale. The problem is that its specific power (in terms of area) is quite high, and the local water has considerable carbonate hardness. As a result, the heating element needs to be cleaned frequently. |
Working with us in tandem with the Turkish solid fuel boiler Gorenje Ecoheat 6 CA. The combination turned out very successful. In winter, the boiler is enough for both heating and the water heater, in summer only the water heater circuit operates. There is plenty of hot water, and it heats up pretty quickly. Thick steel enameled tank. The steel is quite thick, about 3 mm. In addition to high permissible pressure and a sense of reliability, this also adds over 100 kg of weight. The enamel protecting the tank is special. It is resistant to temperature fluctuations and has increased resistance to cracking and chipping. Additionally, this enameled tank is protected by a sacrificial magnesium anode. I think such protective measures are sufficient to not worry for at least three to four years. The internal spiral tube heat exchanger has a decent area of 150 square decimeters, ensuring rapid water heating. Comprehensive thermal insulation made of polyurethane foam with a thickness of 40 to 65 mm. This is quite substantial, so in the absence of recirculation, the water remains hot for about two days. Not all indirect heating boilers can boast such indicators. Servicing and cleaning the boiler is quite convenient thanks to a rather large hatch. The controls are clear and convenient; moreover, there is control available for an additionally installed electric heating element (we did not install it). Very large and unrealistically heavy. It was extremely difficult to drag it to the installation site. |
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Additional features water heater Drazice OKC 125 NTR:
- Frost protection
- Thermometer
- Model OKC 125 NTR — Equipped with side heat exchanger outlet, no side flange
- Model OKC 125 NTR/HV — fitted with top heat exchanger outlet, no side flange
- Model OKC 125 NTR/BP — equipped with a side flange, with which you can connect an additional, electric, heating element
| Drazice | OKC 100 NTR | OKC 125 NTR | OKC 160 NTR | OKC 200 NTR | OKC 250 NTR | OKC 300 NTR |
| Rated power of the heat exchanger, W | 24000 | 32000 | 32000 | 32000 | 32000 | 35000 |
| Tank volume, L | 95 | 120 | 155 | 210 | 250 | 300 |
| Heat exchanger surface area, m² | 1.08 | 1.45 | 1.45 | 1.45 | 1.45 | 1.5 |
| Heating time up to 60°C, min | fourteen | eighteen | 23 | 28 | 36 | 24 |
| Instrument dimensions (HxWxD), mm | 815x524x524 | 980x524x524 | 1018x584x584 | 1328x584x584 | 1508x584x584 | 1597x670x670 |
| Device weight, kg | 59 | 72 | 82 | 97 | 106 | 111 |
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