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Alpha E-Tec Plus Combi Boiler

The Alpha E-Tec Plus Combi is an efficient boiler that’s suitable for small to medium-sized homes

Affordable and very efficient, the E-Tec Plus Combi has some excellent internal features and is the newest range of combi boilers from Alpha. In addition to being a compact unit, the boiler is available in three outputs to suit different needs and it also comes with a great warranty. If your budget is tight and you’re looking for a high-performance replacement boiler for your small or medium-sized home, the Alpha E-Tec Plus Combi could be a good choice for you.

How Much Does this Boiler Cost?

The Alpha E-Tec Plus Combi comes in three outputs of 28kW, 33kW and 38kW, so you’ll need to determine what size boiler you need to ensure it can deliver enough heating and hot water. If you need help with choosing the right size boiler, just get in touch with a Gas Safe registered engineer. As you probably already know, new gas boilers can be pricey but the Alpha E-Tec Plus Combi is a fairly priced boiler and typically costs between £870 and £996 including VAT.

How will I know if this Boiler is Suitable for My Home?

Alpha’s E-Tec Plus Combi is available in three outputs and is best suited to small to medium-sized homes without high hot water demand. Since combi boilers tend to have a hard time keeping up with two baths or showers running together, they’re usually recommended for properties with only one bathroom. One of the great things about the Alpha E-Tec Plus Combi is that it doesn’t require a lot of space as it heats water whenever it’s needed, rather than storing the water in a separate cylinder.  

If you’re still unsure whether the Alpha E-Tec Plus Combi is the correct choice for your home and needs, don’t hesitate to get the unbiased opinion of a Gas Safe registered engineer.

Is it a High Efficiency Boiler?

It sure is. The Alpha E-Tec Plus Combi has an A-rating for hot water and an efficiency rating of 93%. It features a stainless steel heat exchanger and a high-efficiency Grundfos pump, which means the boiler is equipped to keep your home comfortable throughout the year and can help to lower the cost of your energy bills. To improve efficiency and further reduce your bills, you can purchase a range of optional controls, such as a weather compensation probe that adjusts the boiler’s heat output according to the outside temperature.

Does this Boiler have a Good Range of Controls and Features?

The Alpha E-Tec Plus Combi has lots of fabulous features, including the stainless steel heat exchanger and the high-efficiency Grundfos pump and hydroblock we mentioned earlier. It also has a high hot water flow rate and a zinc-plated expansion vessel to prevent corrosion and increase boiler lifespan. But that’s not all. The Alpha E-Tec Plus Combi has a single electrode, integrated filling loop and control panel with bottom cover, as well as copper pipe tails with isolation valves, easy-access dry-change NTCs on front of pipes and a combined condensate and pressure relief valve connection.

How long is the Warranty on this Boiler?

An Alpha E-Tec Plus Combi has a standard warranty of 10 years. The warranty can be extended to 11 years if you choose to add a Cyclone Plus magnetic filter or 13 years with an added PremierPack Extra (which includes the Cyclone Plus filter).

Summary of Important Information

  • Expect to pay between £870 and £996
  • Heating output of 28kW, 33kW or 38kW
  • Hot water flow rates of 12.1, 14.1 or 15.9 litres per minute
  • Dimensions of 712mm (H) x 440mm (W) x 268mm (D)
  • Uses gas as its fuel source
  • A-rated for efficiency
  • 10-year warranty as standard

Pros and Cons

There’s no denying that the Alpha E-Tec Plus Combi is a budget-friendly boiler with a whole host of great features. The fact that Alpha is offering a 10-year warranty as standard on such an affordable boiler is pretty amazing too.


  • Considerably cheaper than some other gas boiler brands
  • Suited to small and medium-sized homes
  • Easy to install, use and service
  • Stainless steel heat exchanger – maximises longevity, reliability and efficiency
  • Grundfos pump – reduces energy use and fuel bills
  • Zinc plated expansion vessel to prevent corrosion
  • Provides maximum energy efficiency – reduce fuel bills and carbon emissions
  • Compatible with a range of Alpha controls – improves efficiency and performance
  • Excellent rating on Trustpilot – correct at time of writing in November 2020
  • 10-year warranty


  • Alpha has an overall Which? score of 45%
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