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Vokera Evolve C 28C boiler

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Plumbproud rating

87.94%

Vokera Evolve C 28C Combi Gas boiler

On the PlumbProud quality scoring system, we rate this Vokera Evolve C 28C Combi boiler at 87.94%. To determine a boiler's quality, we consider many different factors from price installed to manufacturer guarantees, energy efficiency, likely cost of running, and more.

We would expect this Vokera Evolve C 28C Combi boiler to cost £1,800 fully installed through PlumbProud, although it will cost more if the fit is complicated. We will provide you with a full quote before starting work, however.

Get a free, no-obligation Vokera Evolve C 28C boiler quote today by simply entering your postcode in the box on this page. You can also speak to a boiler installation expert about heating for your home by getting in touch via email or by phone on 01604 343053.


Installed price around

£1,800

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Vokera Evolve C 28C Combi Gas boiler frequently asked questions

What type of boiler is Vokera’s Evolve C 28C - system, regular or combi?

Suitable for a house or a flat, the Vokera Evolve C 28C combi boiler is worth considering if you want a combi boiler.

Combination or combi boilers are highly efficient and save a lot of space in your home. Combi boilers heat water directly from the mains when you turn on a tap and, as a result, you don’t need a hot water storage cylinder or a cold water tank in the roof space.

These boilers are, therefore, suitable for smaller homes and especially those without a loft. They are also cost-effective as the water is heated instantly and distributed on demand rather than being stored. Combi boilers are the most popular type of boilers in the UK and replacing an older boiler with a new combi boiler will reduce your gas bills significantly.

However, there are downsides to this type of boiler. If you take a shower while someone else is using a tap, less water will reach each point of usage at lower rates of pressure and temperatures as combi boilers can only heat a certain volume of water at any given time.

Is a Vokera Evolve C 28C combi the right boiler for my house or flat?

It's best to choose a boiler whose size or "output" is right for your property. With a boiler, however, size does not mean how big the boiler is, it means how much power it has.

The amount of hot water you get from showers, bathrooms, and sinks and heat from your radiators depends on your boiler's output (measured in kilowatts). The higher the level of output, the better your home will be heated and you can be more certain that the water from your taps will be as hot as you want.

However, you must be careful. You might not get the hot water you want if your boiler output is too low. If it's too high, you'll be paying more than you need to for gas.

With the Vokera Evolve C 28C combi's output at 28 kW, which types of property would this Vokera Evolve C 28C Combi boiler be most appropriate for?

Most experienced boiler engineers would recommend that this Vokera Evolve C 28C Combi boiler would be suitable for medium-sized homes and larger apartments with 10-15 radiators and two bathrooms.

When choosing a combi boiler for your home, you need to think about "flow rates" as well as output rates. This Vokera Evolve C 28C Combi boiler's flow rate is TBCl/m.

This indicates the maximum volume of hot water (measured in litres per minute) that your boiler can heat then distribute to your taps, showers and radiators at any one time. The greater the demand for hot water in your home, the higher the flow rate you will require.

However, all combi boilers like the Vokera Evolve C 28C draw water directly from the mains and heat it instantly.

This means that they can only heat and distribute water at the rate it enters the property (the "mains pressure" rate). For example, if your mains pressure is 11 litres per minute, this will be the highest flow rate you can achieve even if your boiler's flow rate is 17l/m.

When our engineer comes out to quote you, they may recommend that you choose a heat only boiler or system boiler instead if your family's demand for hot water is higher than normal.


What size is the Vokera Evolve C 28C boiler?

The Vokera Evolve C 28C measures 955 mm tall, 489 mm wide, and 333 mm deep.

Vokera Evolve C 28C – condensing or non-condensing?

We recommend that you choose a condensing boiler wherever possible like the Vokera Evolve C 28C - try to go for the latest model, if possible, to take advantage of improving technology.

Condensing boilers capture and recycle the warmth still present in the water vapour condensation and in flue exhaust emissions created by burning gas to make them more efficient and economical to run.

You will save money on your gas bills too, plus condensing boilers are friendlier to the environment.

Is the Vokera Evolve C 28C combi boiler good for the environment?

Many homeowners are now worried about climate change and the damage they do to the environment from heating their homes has become a subject of increasing concern.

In the largest cities of Britain, gas boilers are responsible for dangerous levels of atmospheric nitrogen dioxide emissions. In total, 14% of the UK’s greenhouse gases are produced by central heating systems.

If you would like your next boiler to help in the fight against climate change, would the Vokera Evolve C 28C combi be a suitable choice?

All boilers manufactured and supplied in the UK must achieve an energy efficiency rating of at least 92% (an "A" SEDBUK grade). This is higher than the previous 88%, which was a legal requirement prior to April 2018.

The energy efficiency rating is used to work out how much energy a boiler both uses and wastes when it's switched on and working correctly - its standard functioning and operation.

The Vokera Evolve C 28C is rated as 94% energy efficient, equivalent to a "A" SEDBUK rating.

What warranty do I get if I purchase the Vokera Evolve C 28C boiler?

The parts and labour warranty offered with this Vokera Evolve C 28C Combi boiler covers you for 10 years.


Vokera Evolve C 28C Gas Combi boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating94%
Band ratingA
LPG Compatible?Yes
P/L Warranty10 Years
Output in kW28 kW
Height955 mm
Width489 mm
Depth333 mm

The top 10 rated Gas Combi boilers

Using the Plumbproud scoring system, the current 10 ten Gas Combi boilers assessed using a number of important variables are as follows:

1Vaillant ecoTEC Plus 82593.35%
2Vaillant ecoTEC Plus 83292.98%
3Worcester Bosch Greenstar 2000 25kW92.89%
4Viessmann Vitodens 050-W 29kW92.66%
5Vaillant ecoTEC Plus 83592.60%
6Worcester Bosch Greenstar CDi Compact 2892.57%
7Vaillant ecoFIT Pure 82592.39%
8Vaillant ecoTEC Plus 83892.16%
9Vaillant ecoTEC Exclusive IQ 83591.90%
10Vaillant ecoTEC Pro 2491.77%

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Vokera Evolve C 28C boiler

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Vokera Evolve C 28C Combi Gas boiler

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  2. Vokera Evolve C 28C
Plumbproud rating for this boiler
87.94%

Based on a wide-ranging set of important factors including the cost to install the boiler, its energy efficiency rating, running costs, and so on, this Vokera Evolve C 28C Combi boiler receives a score of 87.94% on our PlumbProud quality scoring system.

Provided the proposed installation is straightforward, we would anticipate that this Vokera Evolve C 28C Combi boiler will cost £1,800 fully installed through PlumbProud.

For professional advice on whether the Vokera Evolve C 28C is the right boiler for your home or to receive a free quotation, please call 01604 343053 to speak to our friendly team. You are also welcome to email us by clicking here or you can enter your postcode into the quotation box on this page.


Installed price guideline
£1,800

Get your free quote

Vokera Evolve C 28C Gas Combi boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating94%
Band ratingA
LPG Compatible?Yes
P/L Warranty10 Years
Output in kW28 kW
Height955 mm
Width489 mm
Depth333 mm

Vokera Evolve C 28C Combi Gas boiler frequently asked questions

Vokera Evolve C 28C - a regular, combi or system boiler?

If you are considering installing a combi boiler in your house or flat, then the Vokera Evolve C 28C boiler is certainly worth investigating.

Combi boilers have much to recommend them - not least the fact that they save a lot of space. Combination (or combi) boilers were introduced by manufacturers in the 1970s to provide practical central heating and hot water distribution to smaller properties - remember that UK houses and flats tend to be among the smallest in the developed world.

Traditional boilers require one or more storage tanks to keep hot water warm and to store water for heating later. In contrast, combi boilers draw water directly from the mains supply and heat it instantly, removing the need for a storage tank. The heated water is then distributed to your taps and radiators on demand.

While combi boilers are suitable choices for many properties, especially those without a loft, there is also a disadvantage in using them. Water is heated instantly and the volume of water that can be heated at any one time is limited. This can result in less water being sent to taps and showers if more than one is being used simultaneously. In these instances, the water pressure to both points will drop.

Is the Vokera Evolve C 28C combi boiler a suitable choice for my property?

Selecting the right boiler for your home means choosing a boiler that is the right size. And, by size, we don't mean how big it is, we mean how powerful it is - the "output".

Your boiler’s output is a measurement of the power it has available to it to heat the water you need for your radiators or for when you turn on a tap, bath or shower. A higher output rate means it has more power and can heat more water.

It's important to choose an output that matches the demand for water in your home because if your boiler has too low an output, you'll often find only lukewarm water comes out of your taps or heats your radiators. If it’s too high, you’ll be paying more for your gas than you need to.

The Vokera Evolve C 28C combi has an output of 28 kW, so which types of property would this Vokera Evolve C 28C Combi boiler be appropriate for?

Most heating engineers would recommend this Vokera Evolve C 28C Combi boiler as a suitable option for medium-sized homes and larger apartments with 10-15 radiators and two bathrooms.

In addition to output rates, you need to consider a combi boiler's flow rate when making your choice.

The flow rate of your boiler dictates the maximum volume of water (measured in litres per minute) that it can heat and distribute to your taps, showers and radiators at any one time.

However, a combi boiler like the Vokera Evolve C 28C can only heat and deliver water at the rate at which it actually enters your property. For this reason, you should also find out what the mains pressure to your house is before purchasing a boiler.

It's pointless spending more money on a boiler with a 17l/m flow rate if the local water pressure is 11l/m. To give you an indication of average water demand, a power shower typically requires 12 litres of water per minute and a basin tap 4-8 litres. This Vokera Evolve C 28C Combi boiler's flow rate is TBCl/m.

When our engineer comes out to quote you, they may recommend that you choose a heat only boiler or system boiler instead if your family's demand for hot water is higher than normal.


What are the proportions of a Vokera Evolve C 28C boiler?

The size of the Vokera Evolve C 28C boiler is 955 mm high, 489 mm wide, and 333 mm deep.

Is this Vokera boiler non-condensing or condensing?

We recommend that, if possible, you choose a condensing boiler like the Vokera Evolve C 28C.

Condensing boilers are more energy-efficient. They achieve this efficiency by capturing the heat present in flue exhaust gases and water vapour condensation and recycling that heat to, for example, warm colder water coming back from your radiators.

By choosing the latest condensing boiler, you'll also notice a significant reduction in your gas bills, particularly if you're replacing a boiler more than 15 years old.

Is the Vokera Evolve C 28C combi considered environmentally friendly?

Many homeowners are now worried about climate change and the damage they do to the environment from heating their homes has become a subject of increasing concern.

The power we need for our central heating systems accounts for around 14% of the UK’s greenhouse gas production. There are often dangerous levels of ambient nitrogen dioxide gases in the atmospheres of British cities because of our use of gas boilers.

Will choosing a Vokera Evolve C 28C combi boiler for your home be positive for the environment? Let's examine the figures.

An energy efficiency rating of 92% or above is a legal requirement for all boilers manufactured and installed in the UK today. 92% is equivalent to a low-to-middle "A" grade on the "Seasonal Efficiency of Domestic Boilers" (SEDBUK) scale.

Energy efficiency measures how much energy a boiler uses and wastes in the course of its normal operation. The lower the waste, the lower your gas bills.

The Vokera Evolve C 28C was awarded an efficiency rating of "94%", equivalent to a "A" rating on the SEDBUK system.

Am I covered if my Vokera Evolve C 28C combi boiler breaks down?

The parts and labour warranty on the Vokera Evolve C 28C lasts for 10 years.


The top 10 rated Gas Combi boilers

Using the Plumbproud scoring system, the current 10 ten Gas Combi boilers assessed using a number of important variables are as follows:

1Vaillant ecoTEC Plus 82593.35%
2Vaillant ecoTEC Plus 83292.98%
3Worcester Bosch Greenstar 2000 25kW92.89%
4Viessmann Vitodens 050-W 29kW92.66%
5Vaillant ecoTEC Plus 83592.60%
6Worcester Bosch Greenstar CDi Compact 2892.57%
7Vaillant ecoFIT Pure 82592.39%
8Vaillant ecoTEC Plus 83892.16%
9Vaillant ecoTEC Exclusive IQ 83591.90%
10Vaillant ecoTEC Pro 2491.77%
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