Baxi Duo-tec Combi GA

We have built on the features that made the original, award-winning Baxi Duo-tec Combi so popular by adding the THINK combustion management system.

The Baxi Duo-tec Combi GA boasts a wide modulation range of 1:7, providing smoother operation, to deliver more energy efficiency and reliability. The range of outputs includes the popular 40kW model, which delivers a higher domestic hot water flow rate for larger properties.

GA savings

The Baxi GA range of boilers (including the Baxi Duo-tec Combi GA) offer fantastic energy efficiency. In fact they are so highly efficient they could save you up to £71* more on your fuel bills than a standard Baxi high efficiency boiler. To find out more about the money you could save visit our GA savings page.

Key features and benefits

• Gas Adaptive Control - optimum combustion performance at all times, ensuring best combustion efficiency for the boiler's lifetime and lower fuel bills
• Modulation ratio 1:7 - fewer ignitions, greater reliability and lower fuel bills 
• Two speed pump - 40% reduction in electrical consumption per year
• User friendly controls - easier setup for your comfort
• Multifit GasSaver GS1 compatible
• Peace of mind with a 2 year warranty** extended to 5 years until 30th June 2012
• Frost protection - for greater flexibility of siting
• 24kW, 28kW, 33kW and 40kW outputs - for different sized properties including larger homes

* Based on average fuel consumption of a UK household as calculated in the British Gas Home Energy Report 2011

** Subject to registration and an annual service

Compatible accessories

The next generation of Baxi boilers deserves state of the art controls and accessories. We've introduced sensors that monitor internal and external temperatures so the boiler can adjust its output to perfectly suit the home's heat requirement.

• Baxi Duo-tec 24 hour digital programmable timer and fascia kit
• Wireless 24 hour programmer and room sensors
• Wired and wireless 7 day programmer and room sensors
• Baxi wired weather sensor
• Multifit GasSaver GS1c

Read more about Baxi boiler accessories

We have Gas Safe Registered installers all over the UK who will be able to give you a quote for the installation of your new boiler. To use our handy find a gas installer tool simply enter a few details and we'll do all the hard work for you by contacting them on your behalf. All you have to do is wait for an installer to get in touch to arrange a competitive, no obligation quote.

Unsure of what type of boiler you have currently? Try our Product Selector tool- it'll ask you a few key questions relating to your heating and hot water requirements and will recommend a suitable gas boiler.

Features and benefits in more detail

Gas Adaptive Control

The Baxi Duo-tec Combi GA comes with Gas Adaptive Control as standard, which constantly monitors gas and oxygen levels and then adapts itself to provide optimum combustion performance at all times, ensuring best efficiency for the lifetime of the boiler and lower fuel bills.

Wide modulation range

With a modulation range of 1:7, you know the boiler will provide the most heat when you need it. It turns itself down as your home warms up, keeping you at a comfortable temperature without the boiler running flat out. This means it will operate smoothly, efficiently and reliably, reducing your fuel bills and giving you peace of mind.

Peace of mind with a 2 year warranty*

For complete peace of mind, the Baxi Duo-tec Combi GA comes with a 2 year parts and labour warranty - backed by our UK service division heateam. So you can rest assured that in the unlikely event that something goes wrong it will be dealt with quickly and won't cost you a penny.

Single model with LPG and natural gas

There is no need for the extra expense of an LPG conversion kit, meaning cheaper installation.

Multifit GasSaver GS1c compatible

A Multifit GasSaver GS1c can be installed with the boiler and could contribute additional annual gas savings on domestic hot water of up to 37%** - meaning even more savings on your fuel bills and greater benefit for the environment.

Our previous Duo-tec model

It is still possible to buy the Baxi Duo-tec Combi HE A without the added THINK combustion management system.

View the key features and benefits of the original Baxi Duo-tec Combi HE A.

Related pages

• Baxi Neta-tec Combi GA
• Baxi Platinum Combi
• Combi boilers
• Multifit accessories
• THINK combustion management system

**Test conducted by independent scientific test house, TNO. Calculation based on an average household's consumption of 100 litres of hot water per day. Results were based on a comparison of a SEDBUK 2005 (> 90%) rated high efficiency boiler versus a high efficiency boiler and GasSaver.