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    Vaillant ecoTEC Plus Combi Boilers

    Vaillant ecoTEC Plus Combi Boilers range between £1,102.07 and £1,491.32 including VAT and excluding fitting costs.

    Vaillant ecoTEC Plus Combi Boilers

    The ecoTEC Plus Combi is a compact condensing combination boiler that is available in a range of hot water flow rates from 10.5 to 20 litres per minute, as well as five central heating outputs from 25kW to 38kW.

    It’s actually Vaillant’s flagship boiler because it delivers excellent performance and is incredibly reliable, quiet and easy to use. Plus, this appliance can provide you with instant hot water in just 5 seconds without any help from a cold water tank or hot water cylinder.

    With different heating outputs on offer, the ecoTEC Plus Combi will cost between £1,102.07 and £1,491.32 and can meet the demands of most small, medium and large properties. Although the appliance comes with a standard 5-year warranty, you can upgrade to a free 7-year warranty if you choose a Vaillant Advance registered installer to fit the boiler.

    Boiler Energy Efficiency Credentials

    This combi boiler by Vaillant has an up to 89.4% efficiency rating and is a SEDBUK A-rated unit. It utilises condensing technology so that you don’t waste energy when heat and hot water are needed. The ecoTEC Plus Combi will actually drop to using only 16% of its maximum power if that’s all your home requires at any given time, which helps to maximise efficiency and lower energy consumption. As a result, you’ll reduce your energy bills and carbon footprint.

    ecoTEC Plus Combi Technology and Main Advantages

    Vaillant’s ecoTEC Plus Combi features a special flame detection system for more efficient and quieter combustion, as well as built-in two-stage frost protection to minimise the risk of frost damage. It comes with a fantastic modulation of up to 1:6, meaning it can modulate itself down when it knows you need less power to improve boiler efficiency and reduce energy consumption levels.

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

    • ecoTEC Plus 825 25kW Combi – 10.5 litres per minute
    • ecoTEC Plus 832 32kW Combi – 13.0 litres per minute
    • ecoTEC Plus 835 35kW Combi – 14.3 litres per minute
    • ecoTEC Plus 838 38kW Combi – 15.9 litres per minute
    • ecoTEC Plus 938 38kW Combi – 20.0 litres per minute

    It has a sleek contoured case design with down flap to make sure it looks stylish wherever sited and a clear backlit display to enable you to adjust and manage the boiler at all times. Other key features include a stainless steel heat exchanger and a step by step wizard to make installation and boiler setup quicker and easier.

    Furthermore, this boiler is compatible with Vaillant’s aroTHERM air to water heat pump hybrid system, which helps to cut your heating bills and maximise heating potential by using the most efficient energy resources.

    Is the Vaillant ecoTEC Plus Combi the Right Boiler Type and Size for Your Home?

    Aimed for use in small, medium and large homes, the ecoTEC Plus Combi heats water directly from the mains and utilises the mains water pressure to supply your property with plenty of water. With this in mind, you must never choose a combi that is too small or too big for the size of your home to avoid being stuck with a boiler that can’t deal with your requirements and to prevent paying more than necessary to generate enough water.

    As a rough guide, the 24kW model is best suited to small 2 bedroom properties with 1 bathroom. The 32kW and 35kW versions should be able to comfortably heat a medium-sized 3 to 4 bedroom house with a maximum of 2 bathrooms. And whilst there are two 38kW offerings in the range ideal for large dwellings, the slightly more powerful ecoTEC Plus 38kW is designed especially for larger homes with a higher hot water demand.

    Like we always say, you must consult with a Gas Safe engineer over your heating and hot water needs to ensure you pick the correct boiler type and output for your home.


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    A-rated combi boiler Save money on your gas bills
    Wide modulation range of up to 1:6Maximises efficiency and lowers energy consumption
    Clear backlit displayUser friendly boiler
    Step by step wizard Makes installation and boiler set up quicker and easier
    Quiet Mark approvedUltra-quiet whilst in operation
    Vaillant’s aroTHERM air-to-water heat pump hybrid systemGreater performance and energy savings
    85% of components are recyclableMore climate friendly
    5-year parts and labour warrantyConfidence and peace of mind

    Our Honest Opinion of the Vaillant ecoTEC Plus Combi

    The ecoTEC Plus Combi by Vaillant is a high-efficiency boiler that is extremely economical to run and allows you to get rid of your cold and hot water storage tanks. You only need to wait 5 seconds for the boiler to provide you with instant hot water and can gain peace of mind knowing that this appliance is kinder to the environment.

    If the boiler needs to be installed in an off-gas area, you’ll be pleased to know that LPG (liquefied petroleum gas) models are available, along with the natural gas alternatives. And since this unit has been accredited by Quiet Mark, you can be confident that you’ll be getting one of the quietest boilers on the market today.

    There certainly seems to be a lot going for this boiler, however, we are aware that some homeowners have reported issues with heat performance so it might be best to seek additional advice from an installer with extensive experience in dealing with the ecoTEC Plus Combi.

    Advice on Boiler Quotes and Gas Safe Engineers

    If you’re thinking about getting a quote on the Vaillant ecoTEC Plus Combi Boiler, remember to compare prices from approved local and national installers so that you can find the best deal. We suggest you also ask for a fixed price on the boiler and installation work to keep yourself protected from any hidden fees. Once you’ve chosen an installer, you need to check whether they are Gas Safe registered to determine if they are legally allowed to work on gas appliances. You can find out by viewing the details on their ID card or searching the official Gas Safe Register. And don’t forget, you can receive free quotes from reputable Gas Safe installers via our website.


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