Baxi Heating are a part of the BDR Thermea Group which is based in the Netherlands, Baxi has been manufacturing in the UK since 1866 and It has a fair reputation.

Baxi Duo Tec 28 Review – Baxi Combi Boiler

The Baxi Duo Tec 28 is one of a range of Baxi combi boilers that are efficient and boast a seven-year warranty for parts and labour. The Baxi Duo Tec range includes models with outputs as small as kW and as much as 40kW, providing a boiler to suit a large array of different property sizes. The Baxi Duo Tec 28 has a 28kW output and is ideal for a medium home with up to 15 radiators and one or two bathrooms.


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Baxi Heating has produced boilers in the UK since 1866, a period of time that has seen unbelievable advances in boiler technology. The Baxi Duo Tec range is just one of the current crop of energy efficient Baxi combi boiler models on the market. They are endorsed by the Energy Saving Trust, so you can be sure you will be able to save money on your energy bills when compared with older, less efficient models.

Take a look at this Duo Tec 28 Baxi boiler review to find out more about this popular model and manufacturer, and discover whether we would recommend installing this particular Baxi combi in your home.

Baxi Duo Tec 28 Features

Here are the main Baxi Duo Tec 28 features:

  • UK built
  • Manufactured using top quality brass parts
  • 7 year Baxi warranty on parts and labour
  • Compatible with smart controls
  • Easy to service
  • Compact design to fit in a kitchen cupboard
  • Easy to use controls
  • Frost thermostat automatically turns heat on when the temperature dips below 5 degrees celsius

Baxi Heating has a long history in the UK and their boilers are built in this country. You can rest assured that the parts used in the creation of the Baxi Duo Tec 28 are high quality, meaning that they should last for a decent amount of time. If there is a problem, the seven-year Baxi boiler warranty should give you peace of mind that any problems that do occur will be quickly rectified.

The Baxi Duo Tec 28 is designed to fit within a kitchen cupboard. This means you can hide it away if you prefer, rather than display it on the wall. Another key part of the Baxi Duo Tec design process is to ensure that their models are easy to service. An annual service is essential to keeping your Baxi boiler running at the top of its game and as efficiently as possible. It is also essential for keeping your Baxi warranty valid. Take a look at our Clever Care packages for details of our annual boiler service plans.

Baxi Duo Tec Range

There are four regular combi boilers in the Baxi Duo Tec range. As well as the Baxi Duo Tec 28, there are the 24kW, 33kW and 40kW models. The Baxi Duo Tec 40 provides 16.4 litres per minute of hot water and the range itself is noted for its hot water performance.

In addition to regular Baxi combi boiler versions of the Duo Tec range, there is also an LPG edition. The Baxi Duo Tec LPG 28kW model contains all the same features as the combi versions, but runs on LPG, which means that even households that do ot have access to the mains gas network. If you opt for the Baxi LPG boiler, you will also need to install a tank to hold the fuel used to power the heating and hot water.

The Baxi Duo Tec range offers a twin flue system that provides more options to the customer about where the Baxi combi is located in their property. You can also use smart controls with Baxi Duo Tec boilers, including Baxi uSense. The Baxi uSense thermostat is controlled using an app from your phone or tablet, allowing you to monitor your energy usage remotely.

Baxi Boiler Prices

To get an idea of Baxi boiler prices, you should book in a home survey from Clever Energy Boilers. We will send an experienced staff member to assess the work needed to install the Baxi Duo Tec 28 in your home. They will take into account if you need to swap from a system boiler to a combi, whether you need to find a new location for the new Baxi boiler and a number of other factors.

Once the survey is complete, they will issue you with Baxi combi boiler prices for standard and premium models covering the entire cost of the unit and labour. This means that you will know the final cost of the job before you agree to go ahead and that will remain fixed for a time while you make that decision. If you are happy with our Baxi boiler prices, then we can arrange a date for the installation.

As part of the survey, we will work out whether the Baxi Duo Tec 28 will meet all your needs. You may require a Baxi Duo Tec boiler that is more powerful in order to serve your home better. Alternatively, the Baxi boiler you need might be less powerful than the 28kW model. An overpowered boiler will not provide the potential savings you could make on your energy bills.

Should I Buy a Baxi Combi Boiler?

Although this is a positive Baxi boiler review, we would always recommend a Worcester Bosch combi boiler instead. We are accredited Worcester installers because we believe they make the best combi boilers on the market.

In the recent Which? Magazine boiler report, Worcester Bosch topped the poll of customers and boiler experts for the tenth year in a row. Baxi could only manage a disappointing sixth position in the rankings. Baxi’s overall brand score of 74% was a long way behind Worcester’s 90% showing.

One of the main reasons for Baxi lagging behind was in the ‘engineer recommendation’ section. Gas professionals do not rate Baxi combi boilers as highly as they do those made by Worcester Bosch.

The Baxi Duo Tec 28 is a decent boiler, but you might prefer to look at a new boiler from the Worcester Bosch Greenstar range instead.

When buying a new boiler, you want to speak to someone you can trust, that will support your needs now and in the future.

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What customers say about Clever Energy Boilers

My wife and I would like to thank you all for the competence and excellent work carried out at our home, from the estimate and the fitter who plumbed in the new boiler, to the electrician who made our programmer work with the boiler, an excellent team of manpower seldom seen with so called professionals.

Mr & Mrs Sheen, Doncaster

Thanks Tom for all your patience and time you spent answering all my questions and promptly ringing me back each time and thanks to your office staff always polite and helpful, a big thank you to John and Chris for installing the boiler and all the other jobs, both worked efficiently and cleanly, John was very good explaining everything as he went along. 

Mr Peacock, Holmfirth

I am very happy with the service I received. My new boiler has been installed very quickly and hassle free, I would definitely recommend this service.

Moyra Thomas, Stockport

Rizwan was a very good engineer he was very clean and made the place spotless after he had gone.

Mary Jones, Birmingham

Brilliant service from all the team. Thanks. Our old boiler died and from a very reasonable quote to fitting a new one within a couple days. Excellent advice and workmanship too.

Adrian Charlton, West Yorkshire

My old boiler went kaput, Clever Energy Boilers gave me a great price and fitted my new boiler within 3 days. Very pleased with the work carried out and would not hesitate to recommend to anyone needing a new boiler. A big thank you to both the installation team and the electrical man, both first class.

Mr Herbert, Yorkshire