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    Baxi 400 Combi LPG Boilers

    The Baxi 400 Combi LPG Boiler typically costs £729.41, which includes VAT but not the installation fees.

    Baxi 400 Combi LPG Boilers

    Manufactured by reputable British brand, Baxi, the 400 Combi LPG is perfect for homes with minimal loft and storage space because it doesn’t require extra tanks or cylinders.

    It measures 700mm (H) x 395mm (W) x 279mm (D) and can be kept in a cupboard that is 290mm deep. The boiler has a heat output of 28kW and a maximum hot water flow rate of 11.5 litres per minutes.

    When it comes to price, you can expect to pay around £729.14 for the 400 Combi LPG with a 5-year parts and labour warranty.

    Boiler Energy Efficiency Credentials

    The Baxi 400 Combi LPG is an energy efficient combination boiler that has an A rating for heating and hot water efficiency. This means that the boiler will help to cut the cost of your fuel bills. Although this model is highly efficient straight out of the box, efficiency can be improved when you combine it with an optional uSense smart room thermostat. This special control enables you to change heating times from your smartphone or tablet, meaning you don’t even need to be at home to control your heating system.

    400 Combi LPG Technology and Main Advantages

    Baxi’s 400 Combi LPG features user-friendly controls and a clear LCD display to make selecting your heating times a breeze. It comes with a range of flue lengths to offer siting flexibility and ensure you find a suitable area of your home to keep the boiler. A simple hanging bracket is also included so that the appliance can be hung on a wall.

    As the boiler is compact and can be installed in a 290mm deep cupboard, you can keep it tucked away in your kitchen. It’s easy to install as well, which should help to keep installation costs low. In addition to the smart uSense control we mentioned above, the 400 Combi LPG is compatible with a huge selection of optional accessories including a plug-in 7-day digital timer and integral 24-hour electro-mechanical timer.

    Is the Baxi 400 Combi LPG the Right Boiler Type and Size for Your Home?

    Buying the right size boiler for your home is essential. If the boiler is too powerful, you will overheat your house and waste energy. But if it’s not powerful enough, you will not feel the benefit of the warmth. Although we strongly recommend you seek the advice of a Gas Safe engineer before choosing a replacement boiler, the information below will give you an indication as to whether the 400 Combi LPG is suitable for you and your property.

    As the Baxi 400 Combi LPG is only available in a 28kW output and with a flow rate of 11.5 litres per minute, it’s ideal for a medium-sized home with 1 large bathroom and up to 15 radiators. It will also suit some larger homes, depending on your typical heating and hot water usage habits.


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    A-rated conventional boilerSave money on your gas bill
    Class 5 NOx rating Environmentally friendly
    Compact and lightweightEasy to fit and can be installed in a wide range of locations
    Compatible with uSense controlAdjust the temperature and heating times directly from your smartphone
    Extensive range of flue sizesCan be installed to almost any central heating jig in the UK
    5-year parts and labour warrantyManufacturers confidence and peace of mind

    Our Honest Opinion of the Baxi 400 Combi LPG

    The Baxi 400 Combi LPG was launched in 2017 to enable homes in off-grid areas to benefit from a high efficiency combination boiler. Baxi developed this model after consulting with many installers to ensure the brand created a boiler that met the needs of both customers and engineers. The result was a boiler that can be fitted quicker than other combi models and can be easily controlled by end-users via some of the latest smart controls.

    We think the 400 Combi LPG is a cost-conscious space-saving solution for homeowners looking for an energy efficient boiler that can slash energy bill costs and reduce their carbon footprint. And considering this model comes with smart control options and a 5-year warranty, we believe the £730 price tag represents excellent value for money.

    Advice on Boiler Quotes and Gas Safe Engineers

    As always, we recommend you compare Baxi 400 Combi LPG Boiler prices by getting a range of quotes from local and national companies. When shopping around, make sure you get quotes on both the boiler and the installation. It’s also extremely important to choose a qualified Gas Safe engineer to fit your new boiler as this confirms that they are legally permitted to carry out the work. You can check the qualifications and registration status of an engineer by running a search at the Gas Safe Register website or by viewing the details on their Gas Safe ID card. If you haven’t the time to do this, feel free to use our online service to get competitive boiler related quotes.


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