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DRAŽICE OKC 300 NTR/BP water heater 296 l, 1.5 m² heat exchanger, floor-standing
DRAŽICE OKC 300 NTR/BP water heater 296 l, 1.5 m² heat exchanger, floor-standing
DRAŽICE OKC 300 NTR/BP is a floor-standing indirect hot water storage tank equipped with one high-performance heat exchanger. It is designed for domestic hot water preparation using an external heat source such as a heating boiler or another heating system.
The OKC 300 NTR/BP features a 1.5 m² heat exchanger with a volume of 10.5 litres. At a heating water temperature of 80 °C and a flow rate of 720 l/h, the rated heat exchanger output reaches 35 kW.
Under the manufacturer's specified test conditions, the heating time from 10 to 60 °C via the heat exchanger is approximately 30 minutes. Continuous hot water output at 45 °C reaches approximately 1100 l/h.
The actual storage capacity of the DRAŽICE OKC 300 NTR/BP is 296 litres. The maximum tank operating temperature is 80 °C and the maximum operating pressure is 10 bar. The heat exchanger allows heating water temperatures up to 110 °C and an operating pressure of up to 10 bar.
A side flange serves as an inspection and cleaning opening and also allows installation of a compatible electric heating unit. A TJ 6/4″ electric heating element can also be installed. An electric heating element is not included as standard.
The OKC 300 NTR/BP is equipped with a hot water circulation connection. 60 mm thermal insulation with a thermal conductivity of 0.021 W/(m·K) helps reduce heat losses. Energy efficiency class is C and static heat loss is 83 W.
Main advantages
- Floor-standing installation
- 296-litre actual tank capacity
- One high-performance 1.5 m² heat exchanger
- 10.5 l heat exchanger volume
- 35 kW rated heat exchanger output
- Approx. 30-minute heating time from 10 to 60 °C
- Continuous hot water output up to 1100 l/h
- Tank and heat exchanger pressure up to 10 bar
- Side inspection flange for cleaning and maintenance
- Optional electric heating element installation
- Circulation connection
- Energy efficiency class C
Technical information
| Manufacturer | DRAŽICE |
| Series | OKC NTR/BP |
| Model | OKC 300 NTR/BP |
| Order number | 121070101 |
| Product type | Indirect hot water storage tank |
| Installation | Floor-standing |
| Actual capacity | 296 l |
| Number of heat exchangers | 1 |
| Heat exchanger surface area | 1.5 m² |
| Heat exchanger volume | 10.5 l |
| Heat exchanger output at 80 °C / 720 l/h | 35 kW |
| Heating time via heat exchanger 10–60 °C | 30 min |
| Continuous hot water output at 45 °C | 1100 l/h |
| Maximum tank water temperature | 80 °C |
| Maximum tank operating pressure | 10 bar / 1 MPa |
| Maximum heating water temperature | 110 °C |
| Maximum heat exchanger pressure | 10 bar / 1 MPa |
| Energy efficiency class | C |
| Static heat loss | 83 W |
| Insulation thickness | 60 mm |
| Insulation thermal conductivity | 0.021 W/(m·K) |
| Circulation connection | Yes |
| Inspection flange | Yes, side-mounted |
| Electric heating element | Not included; optional installation |
| TJ 6/4″ heating element installation | Possible |
| Height | 1558 mm |
| Diameter | 670 mm |
| Net weight | 108 kg |