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    Baxi 400 Heat Boilers

    Baxi 400 Heat Boiler prices start at £696.73 and go up to £834.00 including VAT and excluding installation.

    Baxi 400 Heat Boilers

    Designed to make life easier for your installer, the Baxi 400 Heat is the ideal replacement for your old regular, conventional or traditional boiler.

    This model is extremely compact and measures in at just 625mm (H) x 370mm (W) x 270mm (D), making it small enough to fit inside a standard-sized kitchen cupboard. The boiler comes in five outputs of 12kW, 15kW, 18kW, 24kW and 30kW to suit properties of all sizes and homes with different demands. By being a conventional unit, it must be installed alongside tanks in the loft and a hot water storage cylinder in the airing cupboard.

    Baxi’s 400 Heat varies in price and will set you back anything between £696.73 and £834.00, which includes VAT. When it comes to cover, the boiler is backed by a 5-year parts and labour warranty as standard.

    Boiler Energy Efficiency Credentials

    If you purchase the Baxi 400 Heat, you can rest assured that you’ll be getting a boiler that is A-rated for efficiency and recommended by the Energy Saving Trust. You should really be aiming for a boiler with an A rating as this confirms that it’s a condensing appliance, meaning the boiler recovers more heat and is more efficient. As a result, you’ll save more money on your energy bills. We should also mention that the 400 Heat has low NOx emissions and is Class 5 rated, so it’s kinder to the environment as well. What’s more, this model is compatible with Megaflo Eco Cylinders which help to improve performance, comfort and energy efficiency.

    400 Heat Technology and Main Advantages

    The Baxi 400 Heat is one of two of the lightest boilers in the UK, with the other being the Baxi 200 Heat. It weighs just 19.5kg, which means your installer won’t have any trouble lifting and fitting this unit. This boiler doesn’t need any extra wires but it does come with a hanging bracket for neater installations. Plus, it has easily accessible electrical connections and other time-saving features to ensure installation is straightforward and can be completed in a speedy manner.

    In addition to being installer-friendly, the 400 Heat is easy to use, which is mainly thanks to its simple controls and LED status and fault diagnosis display. As it’s available with a choice of flue lengths and bends, the boiler offers flexibility when it comes to deciding where you would like to have it installed. On top of that, the boiler allows for front and side access for quick and easy servicing to make sure disruption is kept to a minimum.

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

    Designed to be installed almost anywhere in the home, the 400 Heat by Baxi is a great choice for small, medium and large-sized properties because it comes in a range of outputs. The boiler is a particularly good option for households that tend to use a lot of hot water at the same time, so it’s perfect for homes with more than 1 bathroom. As a general rule, the lower outputs will be ideal for smaller dwellings and the higher outputs are best suited to homes with greater heating and hot water demands. As it’s impossible to say which size unit you’ll need without assessing your property and unique requirements, you must always seek advice from a Gas Safe engineer prior to purchasing a new boiler.


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    A-rated heat only boilerSave money on your gas bills
    Class 5 NOx ratingEnvironmentally friendly
    Kitchen cupboard fitCan be hidden out of sight
    Choice of flue lengthsFlexible siting
    Simple controls and LED displayEasy to use
    Easily accessible electrical connections Easy and less disruptive installation
    Compatible with Megaflo Eco CylindersImproves energy efficiency, performance and end-user comfort
    5-year parts and labour warrantyConfidence and peace of mind

    Our Honest Opinion of the Baxi 400 Heat

    It’s clear that Baxi has really thought about both the installer and end-user when developing the 400 Heat. The brand couldn’t make installation any simpler, and has even removed the need for a pump over-run and permanent live to ensure disturbance to your home is never an issue. If you’ve had to fork out for a replacement boiler in the past, you’ll know that installation can be a timely process – so the fact that this model is super-easy to install is a major plus point.

    There are some other things to get excited about too. For instance, not only will this boiler improve the energy efficiency of your property and help to lower your energy bills but it can also reduce your carbon footprint. And even though the Baxi 400 Heat is a cost-conscious boiler, you get peace of mind with this appliance because it is supported by a decent 5-year manufacturer’s warranty.

    Advice on Boiler Quotes and Gas Safe Engineers

    If your engineer confirms that the Baxi 400 Heat is a suitable solution for your home, we recommend you get a few quotes on the boiler and installation. When shopping around, be sure to liaise with local and national companies so that you can compare prices and find the best deal. It’s also important that you choose an installer who is Gas Safe registered and fully qualified to carry out the fitting work. You can check the qualifications and registration status of an installer by searching the Gas Safe Register online or viewing the details on the individual’s Gas Safe ID card. Don’t forget, you can use our free online service to obtain no-obligation quotes from trusted boiler companies and registered installers.


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