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    Baxi 100 Combi Boilers

    Prices for a Baxi 100 Combi start from £678.00 and go up to £728.40 including VAT and excluding installation.

    Baxi 100 Combi Boilers

    The 100 Combi is one of Baxi’s most affordable boilers.

    Compact and easy to maintain, it measures 700m (H) x 290mm (W) x 300mm (D) and is available in two heat outputs of 24kW and 28kW. Designed to save you money on heating bills, this model is an energy efficient heating solution suitable for most UK households. Furthermore, it features user-friendly controls to give you more control over temperatures and the amount of energy you use.

    Baxi 100 Combi prices typically range from £678.00 to £728.40 excluding installation, and the boiler is supported by a 2-year parts and labour warranty.

    Boiler Energy Efficiency Credentials

    The Baxi 100 Combi is specifically designed to be energy-efficient and help UK homeowners reduce their carbon footprint and energy bills. With a seasonal efficiency of 90.9%, this model qualifies for a SEBDUK A-Rating and is classified among the most energy-efficient wall-mounted boilers on the market. It’s an Energy Saving Trust endorsed unit which is fitted with a built-in automatic gas-adaptive function that enhances combustion efficiency. The appliance is also easy to install to help you cut down on labour costs.

    100 Combi Technology and Main Advantages

    Baxi is well-known for efficiency and innovation, and the 100 Combi is no exception. Manufactured from stainless steel and designed with soft, stylish curves, this unit is aesthetically pleasing and made to last.

    The range includes two output sizes with different maximum hot water flow rates, which are as follows:

    • 100 24kW Combi – 9.8 litres per minute
    • 100 28kW Combi – 11.5 litres per minute

    This compact combi boiler comes highly recommended by engineers because of its reliability, build-quality and innovative engineering. It’s small enough to fit in a 300mm deep kitchen cupboard and boasts a built-in frost thermostat to eliminate the risk of water freezing over should you have to mount the boiler in the loft or garage.

    A pre-plumbing jig makes the appliance compatible with spaces that previously housed a conventional boiler. It also has a Multifit flue kit which gives you an industry-wide choice of accessories and the flexibility to install the boiler virtually anywhere in your home.

    Is the Baxi 100 Combi the Right Boiler Type and Size for Your Home?

    When choosing a combination boiler, it’s important to buy one that has the power and reliability to heat your home effectively. The key things to consider are the number of kilowatts and the flow rate per minute the boiler can provide.

    The smallest boiler of the Baxi 100 Combi range has a 24kW output and delivers a flow rate of 9.8 litres per minute, making it ideal for a small property with up to 10 radiators and 1 bathroom. Then there’s the 28kW model, which delivers 11.5 litres per minute and can comfortably heat a home with 3-4 bedrooms, up to 15 radiators and 1 bathroom.


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    A-rated conventional boilerSave money on your gas bill
    High-performing energy-efficiencyRated as one of the most eco-friendly and cost-saving boilers on the market
    Easy-to-use controls User-friendly
    Can be operated using a smartphone or tabletGives you more control over room temperature
    Choice of flue lengthsGives you flexibility to adapt and install your boiler
    Built-in anti-freeze thermostatWater will never freeze over
    2-year parts and labour warrantyConfidence and peace of mind

    Our Honest Opinion of the Baxi 100 Combi

    Thanks to the premium performance and affordable cost of the unit, the Baxi 100 Combi represents one of the best value for money boilers on the UK market. As this boiler is easy to install and has the ability to help reduce gas bills, it’s a firm favourite among homeowners and boiler technicians.

    Baxi has given this model a 2-year warranty which underpins their confidence in the reliability of this heating system. It may not have the guarantee and the hallmarks of Baxi’s Platinum range but the 100 Combi is perfectly capable of meeting the needs of small to medium-sized households.

    Advice on Boiler Quotes and Gas Safe Engineers

    Before choosing a boiler, we recommend you ask a Gas Safe registered engineer to provide you with their recommendation for your home. It’s also a good idea to request several quotes to ensure you get the best deal. You can contact local and national companies to compare quotes and find the best price deal on both the boiler and installation. If you prefer, you can use our free quotation service which allows you instant access to multiple national and local companies, as well as qualified engineers who are listed on the Gas Safe Register.


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