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Baxi 630 Heat Only Boiler

From £1,220.00

The Baxi 630 Heat Only boiler comes with 7 year parts and labour warranty*

Has no need for a pump overrun or permanent live and has a lift weight from just 17.4kg.

This powerful boiler can be installed on open vent or sealed systems and has an optional in-case rear flue, making it the perfect choice for homes with a high demand for hot water.

Compact and easy to install, this wall-mounted heat only boiler (also called regular, open vent or conventional) with its small dimensions is ideal for installation in a standard kitchen cupboard. With outputs from 13kW to 30kW, there’s a model to suit most properties and pockets. Versatile fluing for ease of installation.

  • No pump over-run or permanent live switch required
  • Quick and easy to install
  • Compact cupboard fit
  • Lightweight
  • Suitable for open vent and sealed system.
SKU: N/A Categories: , , , Product ID: 1147


The Baxi 630 Heat Only boiler is a reliable and efficient heating solution providing warmth and comfort to your home. With its sleek and compact design, it offers versatility in installation and fitting neatly into various spaces. Whether you have limited space or specific aesthetic preferences is designed to accommodate your needs.

Baxi 630 Heat Only boiler lies advanced technology that ensures both high performance and energy efficiency. This ensures efficient heating and lowers energy costs while reducing environmental impact. Investing in the Baxi 630 Heat Only boiler enhances comfort and supports sustainability.

Ease of use is another standout feature of the 630 Heat Only. Its user-friendly controls allow for straightforward operation, enabling you to adjust the temperature to your desired comfort level with minimal effort. Whether you’re tech-savvy or prefer simplicity, the intuitive interface of the Baxi 630 Heat Only boiler ensures a hassle-free experience for all users.

Durability is paramount when it comes to home appliances, and this Heat Only boiler doesn’t disappoint in this regard. Constructed from high-quality materials, it is built to withstand the rigors of daily use, ensuring longevity and reliability. You can rest assured that the the 630 Heat Only boiler will continue to deliver consistent heating performance year after year, providing peace of mind for you and your family.

In summary this boiler offers a winning combination of efficiency, reliability, and convenience. Whether upgrading or outfitting, this boiler is a reliable choice that fulfils all needs.

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Additional information

Weight 17.5 kg
Dimensions 37 × 62.5 cm


ptional<td>624</tr><td>14.88Heat Output CH (non condensing) kW (Pn)1316192530

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<td>Range – e.g. 45° to 82°

Sales Code

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771202077120227712023</tr>User adjustable CH temperature</tr>er Plus ErP</td>


e=”color: #586067;”><strong style=”font-weight: 500;”>Controls and accessories

</tr> twin channel wired programmer

Operating mode selector switch with reset  Yes / no Yes Yes</td>&lt;td&gt;Yes</td> Yes Yes
Yes Yes Yes Yes Yes
LED temp/status/fault diagnosis display Yes / no Yes Yes Yes Yes Yes Baxi 7212443 Optional Optional Optional Optional</td> O
Baxi room thermostat 720971601 Optional Optional Optional Optional Optional
Gas Boil % 93.0 93.0 93.0 93.0 93.0
SAP 2009 annual efficiency (PCDB/SEDBUK) % 89.2 89.2 89.2 89.1 89.1
NOx class 6 6</td><td>6 6 6
>e=”font-weight: 500;”>ErP Product Information
NOx mg/kWh 18 20 21 24
Sound Power Level, Indoors LWA dB 37 39 41 45 49
Space Heating Efficiency Class A A A A A
Heat Input CH kW max gross (QnHs) 18.32 21.75 28.62 34.35
kW min gross (QnHs) 8.59 8.59 8.59 8.59 8.59
 kW (Pn) 7.5 7.5 7.5 7.5 7.5
Gas supply connection (mm) 22 22 22 22 22
Inlet supply pressure (natural gas) mbar 20 20 20 20 20
Maximum gas rate m3/hr 1.42 1.75 2.07 2.73 3.27
Mechanical and hydraulic 
Compartment ventilation required Yes / no No No No No No
Flow / return pipe size (mm) 22 22 22 22 22
Condensate discharge pipe size (mm) 21.5 21.5 21.5 21.5 21.5
Electrical supply Volts / Hz 230V/50Hz 230V/50Hz 230V/50Hz 230V/50Hz 230V/50Hz
Permanent live required Yes / no No No No No No
Switched live Yes / no Yes Yes Yes Yes Yes
Electrical power cable fitted as standard 1m of 3 core Yes Yes Yes Yes Yes
Power consumption Watts 17 20 23 33 44
External fuse rating Amps 3 3 3 3 3
Internal fuse rating 1.6T 1.6T 1.6T 1.6T 1.6T
Boiler IP rating (electrical protection) Approval category IPX4D IPX4D IPX4D IPX4D IPX4D
Pump overrun Yes / no No No No No No
Concentric flue system
Standard telescopic concentric flue Length in mm 315-500 315-500 315-500 315-500 315-500
Horizontal and Vertical concentric (60/100 mm) Max equivalent length (m) 6 6 6 6 6
Reduction per 135° bend (m) 0.5 0.5 0.5 0.5 0.5
Reduction per 93° bend (m) 1 1 1 1 1
Horizontal and Vertical concentric (80/125mm) Max equivalent length (m) 12 12 12 12 12
Installer lift weight (boiler) Max (kg) 17.4 17.4 17.4 17.4 19.5
Gross packaged boiler weight (kg) 19.5 19.5 19.5 19.5 21.5

Product Data

BAXI 600 Heat Only Energy Label UK

<a style=”font-weight: inherit; font-style: inherit; color: var(–theme-color-text_link);” href=”″&gt;BAXI 600 Heat Only Installation Manual