Junkers Bosch Therm 4204 5 gas water heater
650€ installed · VAT incl.
Description
Open-flued gas water heater with 5 l/min: designed for a kitchen sink or a hand basin; it does not give enough flow for a shower.
The price includes the unit, VAT and installation. It is installed by our own accredited technicians, which is what activates the manufacturer’s warranty. Quote via WhatsApp from photos or a video; a free visit only if needed, in Barcelona and the metropolitan area.
Who is the Therm 4204 5 for?
It is the Junkers Bosch open-flue water heater with battery ignition: it needs no plug. It is designed to replace an open-flue water heater, reusing its flue and connections.
- Battery ignition, with no pilot light burning all day.
- Automatic flame modulation on the 11 and 14-litre models.
- Standard Junkers water and gas connections: a quick swap.
- Extra safety sensors and ready for 20% hydrogen.
All the water heaters we install
| Model | Type | Flow | For | Installed price |
|---|---|---|---|---|
| Therm 6600 S 12 | Room-sealed | 12 l/min | a shower and another tap at the same time | 940€ |
| Therm 6600 S 15 | Room-sealed | 15 l/min | two showers at the same time | 1.000€ |
| Therm 6600 S 17 | Room-sealed | 17 l/min | two showers at the same time | 1.100€ |
| Therm 3600 S 11 | Room-sealed | 11 l/min | one shower | 740€ |
| Therm 4304 11 | Open-flue | 11 l/min | one shower | 760€ |
| Therm 4204 5 | Open-flue | 5 l/min | a single tap, such as the kitchen sink | 650€ |
| Therm 4204 11 | Open-flue | 11 l/min | one shower | 740€ |
| Therm 4204 14 | Open-flue | 14 l/min | a shower and another tap at the same time | 800€ |
Price including VAT and installation. Flow is for water heated by 25 °C, as the manufacturer measures it.
Technical specifications
| Brand | Junkers Bosch |
|---|---|
| Model | Therm 4204 5 |
| Hot water flow | 5 litres/min |
| Technology | Open-flue, low NOx |
| Warranty | 5-year written warranty on the installation, plus the manufacturer warranty |
What the price includes
- Water heater, VAT included
- Removal of the old heater, if there is one, and fitting of the new one
- Gas and water connection and flue
- Commissioning and 5-year written warranty on the installation
- Fixed written quote from photos or a video via WhatsApp; free visit only if needed
- Installed in less than a week from accepting the quote
- Our own technical service: 24-hour call-out on working days with a maintenance contract
How to read the specifications
- 5 litres per minute
- It is the hot water it delivers when heating it by 25 °C. As a guide, enough for a single tap, such as the kitchen sink.
- Open-flue water heater
- It takes air from the room it is in and sends flue gases up a chimney. It can only be installed where regulations allow, usually to replace another open-flue unit.
What can change the price
Quoted separately, in writing and before we start:
- Adapting or replacing the flue if it does not meet current regulations.
- Moving the water heater or extending water or gas pipes.
- Changing gas type (natural gas, propane or butane).
More information
Frequently asked questions about the Therm 4204 5
What home is the Therm 4204 5 for? It delivers 5 litres per minute heating the water by 25 °C: as a guide, enough for a single tap, such as the kitchen sink. Send us photos of your current water heater and we will confirm the size.
What does the price include? The water heater, VAT, removal of the old one, fitting, connection to gas and water and commissioning. Fixed written quote before we start.
Room-sealed or open-flue? This one is open-flue: it takes air from the room. It is mainly used to replace another open-flue unit where regulations allow; otherwise you need a room-sealed one, such as the Therm 3600 S.
How long does the replacement take? We give you the timescale in writing in the quote, which we prepare from the photos you send us on WhatsApp.
See all the Junkers Bosch models we install in Barcelona →
Compare the Therm 4204 5 with other models in our comparison tool →
See all the Junkers Bosch models we install in Barcelona →
Compare the Therm 4204 5 with other models in our comparison tool →