Keston C30 30kW Condensing Combi Boiler

Keston C30 30kW Condensing Combi Boiler

Keston C30 combi boiler

The Keston C30 Combi Boiler is a compact wall-mounted gas condensing combi boiler designed to provide central heating and domestic hot water from a single appliance. With a maximum domestic hot water output of 30.3kW, it provides a practical heating and hot water solution for domestic properties.

The Keston C30 is fully modulating and incorporates weather compensation, frost protection, on-board diagnostics and Keston’s twin-flue technology. Its compact wall-mounted design also allows it to be installed in locations where space is limited.

30kW Domestic Hot Water Performance

The C30 delivers a maximum 30.3kW domestic hot water output and a DHW flow rate of 12.4 litres per minute at a 35°C temperature rise. Its DHW specific rate is approximately 14.5 litres per minute.

This makes the Keston C30 suitable for domestic applications requiring reliable hot water performance without installing a separate hot water cylinder.

Central Heating Output

It is important to distinguish the C30’s domestic hot water output from its central heating output.

The manufacturer’s specifications list:

• Maximum CH output at 70°C: 24.2kW
• Maximum CH output at 40°C: 25.6kW
• Minimum CH output at 40°C: 6.4kW
• Maximum DHW output: 30.3kW

This modulation range allows the boiler to adjust its output according to heating demand.

Condensing and A-Rated Efficiency

The Keston C30 is a gas-fired condensing boiler with an A-rated seasonal space-heating efficiency class. Manufacturer data lists seasonal efficiency of 91.1% under SEDBUK 2005 and 89.6% under SEDBUK 2009.

The boiler’s fully modulating operation and supplied weather compensator are designed to help match heat output to the property’s requirements and support efficient operation.

Compact Wall-Mounted Design

The Keston C30 is designed as a compact wall-mounted boiler. Its maximum installation weight is approximately 31.4kg, making it relatively easy to handle during installation.

Keston’s product literature describes the C30 as a compact appliance designed to fit inside a standard kitchen cupboard, subject to checking the available cupboard dimensions before installation.

Keston Twin-Flue Technology

One of the key features of the Keston C30 is its twin-flue system. The manufacturer lists a maximum horizontal flue length of up to 27 metres for the relevant configuration, providing greater flexibility for boiler positioning than many conventional installations.

This makes the C30 particularly useful for installations where the boiler cannot be positioned directly beside an external wall.

Heating and Hot Water from One Boiler

As a combination boiler, the Keston C30 provides both central heating and domestic hot water without the need for a separate hot water storage cylinder. Keston describes the C30 as a compact single-appliance solution for heating and hot water.

Weather Compensation and Frost Protection

The C30 includes a weather compensator supplied as standard, helping the heating system respond to changes in external temperature. It also incorporates built-in frost protection to help protect the appliance during cold conditions.

User-Friendly Controls

The Keston C30 features a large backlit display, user-friendly controls, pressure gauge and on-board diagnostics. An annual service indicator is also included as part of the boiler’s built-in features.

Keston C30 Specifications

Specifications are based on Keston manufacturer documentation and should be checked against the exact model and installation requirements before ordering.

Frequently Asked Questions

What is the Keston C30?

The Keston C30 is a 30kW-class wall-mounted gas condensing combi boiler providing central heating and domestic hot water from one appliance.

What is the Keston C30 DHW output?

The Keston C30 has a maximum domestic hot water output of 30.3kW.

What is the Keston C30 hot water flow rate?

The manufacturer’s specification gives a DHW flow rate of 12.4 litres per minute at a 35°C temperature rise.

Is the Keston C30 a condensing boiler?

Yes. The Keston C30 is a gas-fired condensing combination boiler with an A-rated seasonal space-heating efficiency class.

What is the central heating output of the Keston C30?

The maximum central heating output is 24.2kW at 70°C and 25.6kW at 40°C.

Does the Keston C30 need a hot water cylinder?

No. The C30 is a combination boiler that produces domestic hot water directly, so a separate hot water storage cylinder is not required for normal combi operation.

Does the Keston C30 have twin-flue technology?

Yes. The Keston C30 is designed to work with Keston’s twin-flue system, offering increased flexibility for boiler positioning.

Is the Keston C30 suitable for replacement installations?

Yes. Keston’s product literature describes the C30 as suitable for both new and replacement installations.

Can I order the Keston C30 through EuroFuelSupply?

EuroFuelSupply accepts trade, installer, business and wholesale enquiries and can provide quotations based on product, quantity and delivery destination.