Alpha Boilers Review – Are they any good?

alpha boiler reviews

Alpha boilers are proper good. You get stacks of boiler for your money from these entry-mid level boilers. Here’s why you should buy one:

If you’re considering an Alpha boiler for your home, then you’re probably wondering whether they’re the right choice for you. This Alpha boilers review will give you the informaiton you need to make a decision.

Top tip: Get a price online on any Alpha boiler – Click here for the cheapest prices online

After all, this is not a small purchase, and with the average boiler expected to last for 10-15 years, you want to make sure that you make the right choice. Hopefully, these Alpha boiler reviews will help!

Alpha is a relative newcomer compared to some of the other big brands, but they still have a hefty 50 years’ experience within the heating market and boiler replacement.

Alpha is the market leader in their home country of Italy, but they also have a sizeable presence in 30 different countries around the world. Having produced over 7 million boilers, they know a thing or two about domestic heating!

Within this article, we’re going to look at the features you can expect to see and review some of the most popular models & boiler deals. We’ll also take a look at a new boiler cost and warranty before looking at some of the typical Alpha boiler problems and how to fix them.

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Alpha boiler features reviewed:

Although they may be classed as cheap boilers due to their low price, compared to say the Viessmann 050, the Alpha has two innovative energy-saving features for its boiler ranges.

First of all, there’s GasSaver. This system extracts the heat from the waste boiler flue gases. Then it’s used to pre-heat the cold water from the mains before it even reaches the boiler.

So, that then means that the boiler needs less gas to deliver the hot water! This feature is available as standard on the InTec 40GS2 and as a compact add on unit for other boilers in their range. 

Then there’s FlowSmart which gets rid of the need for a large store of hot water in homes with above-average needs. This system cleverly draws heat from the boiler’s primary circuit and then along with the heat from the GasSaver unit, it pre-heats cold water before it enters the boiler. 

Alpha Boiler Models Explained 

If you’re looking for information on the cd18r, cd24r, cd28c or cd35c, or the InTec 40 GS2 these are now discontinued models. However, Alpha have a great new range in different types of boilers to meet all your needs.

E-Tec Plus 28kW

A highly efficient, compact combi boiler that’s perfect for medium-sized homes. 

The E-Tec Plus is also available as 33kW and 38kW models for households with higher demands on their hot water systems.

This is Alpha’s best combi boiler features a stainless-steel heat exchanger and a high-efficiency Grundfos pump and hydroblock assembly.


If you’re short of space, then the Evoke 28kW combi gas boiler could be a perfect solution. With no need for water tanks or cylinders, it’s small enough to fit into a standard-sized kitchen cupboard.

Highly efficient with a rating of 93%, it’s also combined with low electricity consumption. Featuring a stainless-steel heat exchanger, it also comes with frost protection to protect your boiler during colder months. Also available as the Evoke 33kW.

E-Tec Regular 15kW

This is a wall-mounted regular boiler, so that means that it will form part of the heating system for your home. With an output of 15kW, the E-Tec Regular is going to be suitable for smaller homes with a single bathroom.

That said it does also come in 20kW and 25kW models to cope with higher consumption levels.

Nice and light at just 27kg while also being a compact unit, installation is quick and straightforward, which might see some savings on installation costs. 

Protec Plus System Boiler

Their best system boiler to date, designed for high demand households, the Protec Plus is a fan-assisted condensing system. Available in four outputs, 50kW, 70kW, 90kW and 155kW this could be the perfect choice for large households. Do make sure you don’t buy a boiler with a higher kW than you really need as this will increase your running costs. As a condensing boiler, it’s able to capture some of the heat that might usually escape. This then makes it much more efficient with its ability to pre-heat cold water before it enters the boiler.  

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How much does an Alpha Boiler cost?

As well as becoming associated with reliability, Alpha has quickly become known for the affordability of their boilers. See the below table for the latest boiler costs:

ModelTypical CostAlpha Boiler Warranty
E-Tec Plus 28kW£80010 years as standard *
E-Tec Regular 15kW£7107 years
EVOKE 28kW£7007 years
Protec Plus 50kW£2,2005 years

*Alpha is the very first boiler manufacturer to offer an incredible 13-year warranty on their E-Tec Plus boilers. To extend the standard 10-year warranty to 13, you need to meet two requirements:

  1. Boiler Installation – Have the premier filter kit installed as this provides added protection from debris getting into the central heating system.
  2. Have the boiler serviced every year by an operative who is both qualified Gas Safe and attended training with Alpha.

Alpha Boilers Troubleshooting

No one expects things to go wrong with their new boiler but it’s good to know that the homeowner can quickly resolve some of the common faults with an Alpha boiler. Flashing lights can cause concern, but this is what Alpha boiler error codes mean:

  1. Solid Red Indicator Light 

Usually accompanied by a 47-fault code on the display, this means that the boiler has failed to light. To fix this one, simply turn the switch on the front of the boiler to position 3. That will then start the reset sequence. After around 25-30 seconds, the boiler will try to restart.

  1. Flashing Red Indicator Light 

This usually happens when the overheat thermostat has activated. Simply turn the selector switch to position 3 to reset.

  1. Flashing Red and Yellow Light

This means that there is either a blocked flue or that there is a fault with the fan. In both of these situations, it’s recommended that you contact the Alpha Boiler help desk on 0344 871 8760

Alpha boilers review – Final verdict

When we looked at Alpha boiler reviews, UK customers are overwhelmingly happy with their boiler replacement.

While they may not be the best combi boiler or be as well-known as Vaillant or Viessmann, we can answer with an emphatic yes when asked ‘are alpha combi boilers any good?’

With warranties of up to 12 years, this is a company who have complete faith in the quality of their product range.

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