High-efficiency gas heating unit equipped with top-level condensing technology, with an output range from 14 kW to 42 kW.
Modern design with a high-quality glass front panel. Designed for heating apartments and private houses, as well as providing domestic hot water.
Bosch GC7700i W 20/25C is a combined gas condensing boiler from the Bosch Condens 7700i W series. It is designed for efficient space heating and instant domestic hot water production without a separate hot water cylinder. This model is suitable for apartments, private houses and heating system upgrades where a reliable, compact and energy-efficient gas boiler is required.
The Bosch GC7700i W 20/25C has a heating output range of 3.4–20.8 kW and a domestic hot water output of 25 kW. Thanks to condensing technology, the boiler uses heat from flue gases more efficiently, helping to reduce gas consumption compared with older non-condensing gas boilers.
This model is a practical choice for replacing an old gas boiler, modernizing an existing heating system or installing a compact wall-mounted boiler in limited technical spaces. The wide 1:10 modulation range, A-class pump and modern control system help provide stable comfort and efficient operation throughout the heating season.
We provide sales, installation, replacement, connection, setup and maintenance of Bosch gas boilers in Tallinn and Harjumaa. We can also help select the right model, replace an old gas boiler and prepare the system for safe operation.
Technical Advantages:
- Bosch gas condensing boiler
- Model: GC7700i W 20/25C
- Heating output: 3.4–20.8 kW
- Domestic hot water output: 25 kW
- Seasonal space heating efficiency: up to 94%
- Modulation range: 1:10
- Wall-mounted installation
- Instant domestic hot water production
- Flue connection: Ø 80/125
- Modern control system
- Compatible with Bosch K30RF internet module
FAQ:
Question: What type of boiler is Bosch GC7700i W 20/25C?
Answer: It is a wall-mounted combined gas condensing boiler for space heating and instant domestic hot water production.
Question: Is Bosch GC7700i W 20/25C suitable for an apartment?
Answer: Yes, it can be suitable for apartments if the gas connection, flue system and ventilation meet safety and technical requirements.
Question: What is the output of Bosch GC7700i W 20/25C?
Answer: The heating output is approximately 3.4–20.8 kW, and the domestic hot water output is 25 kW.
Question: Can Bosch GC7700i W 20/25C replace an old gas boiler?
Answer: Yes, this model is often used for replacing older gas boilers. Before replacement, the flue, ventilation and gas installation must be checked.
