Bosch GC7700iW 30/35C is a wall-mounted gas condensing boiler from the Bosch Condens 7700i W series. It is designed for space heating and instant domestic hot water production.
The 30/35C version is a gas combi boiler. This means that the boiler provides both heating and domestic hot water without the need for an external hot water cylinder. This solution is suitable for apartments, private houses and properties where a powerful heating and hot water system is required in one wall-mounted unit.
Bosch GC7700iW 30/35C has a nominal heating output of 30 kW and a domestic hot water output of around 35 kW. The XL domestic hot water load profile is suitable for comfortable everyday use in the kitchen, shower or bathroom, as well as for properties with higher hot water demand.
Condensing technology allows the boiler to use heat from flue gases more efficiently, helping to reduce gas consumption compared with older non-condensing gas boilers. Power modulation helps the boiler adapt to the actual heat demand and operate more efficiently during the heating season.
Bosch GC7700iW 30/35C is suitable for replacing older gas boilers, modernizing heating systems and creating a modern heating and hot water solution. Before installation, the gas connection, flue system, ventilation, condensate drain, water pressure and safety requirements must be checked.
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:
- Model: Bosch GC7700iW 30/35C
- Full designation: Bosch GC7700iW 30/35 C 23
- Series: Bosch Condens 7700i W
- Product code: 7736902434
- Type: gas condensing boiler
- Version: combi boiler
- Application: heating + domestic hot water
- Domestic hot water: instant flow mode
- External cylinder: not required
- Nominal heating output: 30 kW
- Useful heat output at nominal load: 29.5 kW
- Output at 30% load: 10.0 kW
- Domestic hot water output: around 35 kW
- Heating energy efficiency class: A
- Water heating energy efficiency class: A
- Domestic hot water load profile: XL
- Seasonal space heating efficiency: 94%
- Water heating efficiency: 86%
- Annual heating energy consumption: 60 GJ
- Annual DHW fuel consumption: 18 GJ
- Sound power level: 50 dB
- Condensing boiler
- Combination water heater
- Modulation range up to 1:8
- Bosch K30 / K30RF module compatibility
- Wall-mounted installation
- Suitable for apartments and private houses
- Suitable for replacing older gas boilers
FAQ:
Question: What type of boiler is Bosch GC7700iW 30/35C?
Answer: Bosch GC7700iW 30/35C is a wall-mounted gas condensing combi boiler for space heating and instant domestic hot water production.
Question: Does Bosch GC7700iW 30/35C produce hot water directly?
Answer: Yes. The C version is a combi boiler and prepares domestic hot water in instant flow mode without an external cylinder.
Question: Does Bosch GC7700iW 30/35C need an external hot water cylinder?
Answer: No. This model prepares domestic hot water directly and does not require an external cylinder.
Question: What is the output of Bosch GC7700iW 30/35C?
Answer: The nominal heating output is 30 kW, and the domestic hot water output is around 35 kW.
Question: What is the product code of Bosch GC7700iW 30/35C?
Answer: The product code of Bosch GC7700iW 30/35 C 23 is 7736902434.
Question: Is Bosch GC7700iW 30/35C suitable for an apartment?
Answer: Yes, it can be suitable for apartments, private houses and townhouses if the installation conditions meet technical and safety requirements.
Question: Can Bosch GC7700iW 30/35C replace an old gas boiler?
Answer: Yes, this model is suitable for replacing older gas boilers and modernizing heating systems.
Question: What is the difference between Bosch GC7700iW 30/35C and P versions?
Answer: Bosch GC7700iW 30/35C is a combi boiler with instant domestic hot water production. P versions are heating boilers with external cylinder connection.
Question: Where can I order Bosch GC7700iW 30/35C installation?
Answer: Bosch GC7700iW 30/35C installation, replacement and service are available in Tallinn and Harjumaa.
