Junkers Hydro 4300 WRD11-4G is an instantaneous gas water heater for domestic hot water production. The model is also known as Bosch Hydro 4300 WRD11-4 KG and belongs to the Bosch/Junkers Hydro 4300 gas water heater series.
Junkers Hydro 4300 WRD11-4G is designed only for domestic hot water production. It is not a heating boiler and does not provide space heating. The unit heats water in instant flow mode when a hot water tap is opened.
The WRD11-4G model has an output of up to 19.2 kW and a domestic hot water flow rate of up to 11 l/min at a 25 °C temperature rise. This makes it suitable for apartments, smaller private houses and properties where hot water is required for the kitchen, shower or bathroom.
Thanks to the hydrogenerator, the unit produces the energy needed for ignition and control from the water flow. Therefore, no batteries, separate electrical connection or permanent pilot flame are required. Electronic ignition starts automatically when a hot water tap is opened.
Junkers Hydro 4300 WRD11-4G is equipped with a digital display, automatic power modulation, flame monitoring, temperature limiter and flue gas evacuation control. This makes operation more convenient and safer compared with older gas water heaters with a permanent pilot flame.
Because Junkers Hydro 4300 WRD11-4G is an open-chamber chimney gas water heater, the chimney flue, draught, ventilation, air supply, gas connection, water pressure and safety requirements must be checked before installation. A gas water heater must not be installed without verifying flue gas evacuation and ventilation conditions.
We provide sales, installation, replacement, connection, setup and maintenance of Junkers and Bosch gas water heaters in Tallinn and Harjumaa. We can also help replace an older gas water heater, check safe operating conditions and select a suitable model.
Technical Advantages:
- Model: Junkers Hydro 4300 WRD11-4G
- Alternative designation: Bosch Hydro 4300 WRD11-4 KG
- Possible product code: 7736505779
- Type: instantaneous gas water heater
- Application: domestic hot water
- Space heating: no
- Combustion chamber: open
- Installation type: B11BS
- Connection: chimney flue
- Output: 10.6–19.2 kW
- Domestic hot water flow rate: up to 11 l/min at ΔT 25 °C
- Minimum hot water flow: around 2.6 l/min
- Minimum water pressure: 0.55 bar
- Minimum water pressure at maximum flow: 1.0 bar
- Flue connection: 110 mm
- Water heating energy efficiency class: A
- Domestic hot water load profile: M
- Water heating efficiency: around 71%
- NOx: 24 mg/kWh
- Sound power level: 58 dB
- Dimensions: around 655 × 310 × 225 mm
- Weight: around 10.84–11 kg
- Hydrogenerator ignition
- No batteries required
- No permanent pilot flame required
- Electronic ignition
- Digital display
- Automatic power modulation
- Flame monitoring
- Flue gas evacuation control
- Overheating protection
- Suitable for replacing older gas water heaters
FAQ:
Question: What is Junkers Hydro 4300 WRD11-4G?
Answer: Junkers Hydro 4300 WRD11-4G is an instantaneous gas water heater for domestic hot water production.
Question: Is Junkers Hydro 4300 WRD11-4G a gas boiler?
Answer: No. It is not a space heating boiler. The unit is designed only for domestic hot water production.
Question: What is the hot water output of Junkers Hydro 4300 WRD11-4G?
Answer: The domestic hot water flow rate is up to 11 l/min at a 25 °C temperature rise.
Question: What is the power output of Junkers Hydro 4300 WRD11-4G?
Answer: The WRD11-4G model has an output of 10.6–19.2 kW.
Question: Does Junkers Hydro 4300 WRD11-4G need batteries?
Answer: No. Ignition works through a hydrogenerator that produces energy from water flow.
Question: Does Junkers Hydro 4300 WRD11-4G need a chimney flue?
Answer: Yes. It is a chimney gas water heater, so a suitable flue, draught, ventilation and air supply are required.
Question: Can Junkers Hydro 4300 WRD11-4G replace an old gas water heater?
Answer: Yes, but the chimney flue, ventilation, draught, gas connection and water pressure must be checked before replacement.
Question: What is the difference between WRD11-4G and WRD14-4G?
Answer: WRD11-4G has a flow rate of up to 11 l/min, while WRD14-4G has a flow rate of up to 14 l/min. WRD14-4G is the more powerful model for higher hot water demand.
Question: Is Junkers Hydro 4300 WRD11-4G suitable for an apartment?
Answer: Yes, if the apartment has a suitable chimney flue, proper ventilation, sufficient air supply and installation conditions that meet safety requirements.
Question: Where can I order Junkers Hydro 4300 WRD11-4G installation?
Answer: Junkers Hydro 4300 WRD11-4G installation, replacement and service are available in Tallinn and Harjumaa.
