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Vokera Evolve C 28C boiler

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Plumbproud rating

87.94%

Vokera Evolve C 28C Combi Gas boiler

Assessing factors including the system's running costs, its energy efficiency, the manufacturer’s guarantee, and its likely installed price, we scored this Vokera Evolve C 28C Combi boiler 87.94% on our internal PlumbProud grading system.

Expect this Vokera Evolve C 28C Combi boiler to cost you £1,800 fully installed where there are no complications on the fit if you choose PlumbProud for this installation.

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 around

£1,800

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Vokera Evolve C 28C Combi Gas boiler frequently asked questions

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

The Vokera Evolve C 28C boiler could be suitable for your house or flat if you are looking for a new combi boiler.

Traditional boilers often have up to two tanks that either store heated water or water to be heated later. Boiler manufacturers introduced combi boilers in the 1970s to avoid the need for those big tanks. Combi boilers allow homeowners to benefit from the reliable central heating and hot water level they want but without having to give up so much space within their properties - remember that homes in the UK are among the smallest in the developed world.

Your taps and radiators get the hot water they need with a combi boiler. Combi boilers draw cold water direct from the mains which is then heated instantly on demand and distributed to your radiators and taps.

However, combi boilers cannot heat very large volumes of water, which is their main disadvantage. So, for example, when someone wants to take a shower while another person wants to use a hot water tap to do the dishes, water pressure and quantity to both points decreases.

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

To determine that, we need to consider the size of the boiler. Size doesn't mean how big the boiler is - it means how big its "output" is.

This Vokera Evolve C 28C Combi boiler gets its power from gas and the power it's capable of producing is measured in kilowatts - the output rate is actually a kilowatt rate. The higher the output rate, the more kilowatts a boiler can use when heating water.

If you choose a boiler whose output rate is too low, it may not have enough power to make your water as hot as you would like. If you choose a boiler whose output rate is too high, you won't have to put up with lukewarm water but you will face higher gas bills.

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

An experienced heating engineer would recommend that the Vokera Evolve C 28C combi boiler is a suitable choice for medium-sized homes and larger apartments with 10-15 radiators and two bathrooms.

With combi boilers like the Vokera Evolve C 28C, you need to take the flow rate into account as well as the output rate.

Combi boilers draw water from the mains and then instantly heat that water and send it to wherever in your home it's needed. Flow rates, measured in litres per minute, are subject to the mains water pressure in your area. So, for example, if the local mains water pressure is 11 litres per minute and the flow rate of your boiler is 14 litres per minute, the boiler will not be able to process more than 11 litres per minute. The flow rate of this Vokera Evolve C 28C Combi boiler is TBCl/m.

If you live in a home with lots of radiators or bathrooms where many people want to use hot water at the same time, a combi boiler may not be able to cope. For reference, a power shower uses about 10 litres of water per minute. If two people want showers at the same time or one person wants a shower and the other hot water from a tap in the kitchen, your boiler may not have a large enough flow rate even if the local mains water pressure is high.

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.


How large is the Vokera Evolve C 28C?

The Vokera Evolve C 28C is 955 mm in height, 489 mm in width and 333 mm in depth.

Evolve C 28C – non-condensing or condensing?

Condensing boilers convert the warmth present in flue exhaust gases and water vapour condensation into heat which they then recycle to increase the temperature of the colder water returning to your system.

We recommend that homeowners choose a condensing boiler like the Vokera Evolve C 28C for this reason - the more recent your model the better because the technology improves every year.

You'll benefit from lower quarterly gas bills and condensing boilers are also much more environmentally friendly.

How energy efficient is the Vokera Evolve C 28C combi?

Concern for the environment is causing more and more homeowners to think about how they heat their homes and its impact on climate change.

14% of the total amount of greenhouse gases produced by the UK comes from the central heating systems we use. In some of Britain's biggest cities, gas boilers create dangerous levels of nitrogen dioxide in the atmosphere.

Would choosing the Vokera Evolve C 28C combi boiler be an environmentally friendly decision? Here's what the figures say.

All new British boilers must perform to a legal minimum energy efficiency of 92% (a low to good SEDBUK "A" rating). Prior to April 2018, the target was 88% (86-90% = SEDBUK "B" and 90%+ = SEDBUK "A").

Efficiency ratings are intended to let consumers know how much energy a boiler uses in its day-to-day activities and how much energy goes to waste.

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

What is the warranty period for the Vokera Evolve C 28C?

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

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

Assessing factors including the system's running costs, its energy efficiency, the manufacturer’s guarantee, and its likely installed price, we scored this Vokera Evolve C 28C Combi boiler 87.94% on our internal PlumbProud grading system.

On a straightforward installation of this make of boiler using PlumbProud, you should expect to budget around £1,800.

Enter your postcode in the box provided and receive a free quote for the Vokera Evolve C 28C boiler for your home. We are also happy to answer any questions you might have about any of our boilers. You can do this by emailing the team or calling us today on 01604 343053.


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

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

The Vokera Evolve C 28C boiler could be suitable for your house or flat if you are looking for a new combi boiler.

Traditionally, most boilers required you to find space in your property for one or more large storage tanks. These tanks would either keep water warm or hold it in reserve for later heating. Manufacturers originally introduced combi boilers to offer homeowners the same level of warmth and hot water without taking up as much space – remember that the UK has some of the smallest homes in the Western world.

With a combi boiler, the hot water needed for your radiators and taps is provided on demand. Water from the mains passes through your combi boiler and the technology within it instantly heats the cold water. It then distributes that hot water around your home.

The biggest drawback for combi boilers is that they have a maximum capacity in volume for heating water. This means that if someone wants to use the shower while another person wants to use a hot water tap, the amount of water reaching each point falls, resulting in a drop in water pressure.

Is a Vokera Evolve C 28C combi boiler appropriate for my house or apartment?

Whether this Vokera Evolve C 28C Combi boiler is right for where you live depends on its size or what its "output" level is. Size does not mean its physical dimensions, however - it means how powerful it is.

The output of a boiler is measured in kilowatts and indicates how much energy it can use to heat the water needed for your radiators, taps and showers. The greater the output, the more water it can heat.

A boiler whose output is too high will give you hot water and warm radiators but also higher gas bills, whereas a boiler whose output is too low will result in cheaper gas bills but the water might not always be as hot as you want it to be.

The output of the Vokera Evolve C 28C combi is 28 kW, so which types of property would this model be appropriate for?

Most experienced heating engineers would suggest that the most suitable type of property for installing a Vokera Evolve C 28C combi boiler in would be medium-sized homes and larger apartments with 10-15 radiators and two bathrooms.

With all combi boilers, the "flow rate" (measured in litres per minute) is as important a consideration as output rate when choosing which model to go for. This Vokera Evolve C 28C Combi boiler's flow rate is TBCl/m.

Like all combi boilers, the Vokera Evolve C 28C draws water from the mains. It instantly heats that water and then distributes it to the parts of your home which need it - taps, radiators, bathrooms, and so on.

However, the water in the mains pipe that feeds your boilers has its own flow rate - normally between 10 and 12l/m. So if you choose a combi with a flow rate of 14l/m but local water pressure is equivalent to 11l/m, your boiler will actually operate at 11l/m - below its capacity.

In addition, if different family members want hot water at the same time (like for regular morning and evening showers) and your boiler has to provide hot water to your radiators at the same time, a combi boiler may not be suitable.

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.


Making space for the Vokera Evolve C 28C

The dimensions of the Vokera Evolve C 28C are 955 mm [H] x 489 mm [W] x 333 mm [D].

Evolve C 28C – non-condensing or condensing?

This Vokera Evolve C 28C is a condensing gas boiler - we always recommend that clients choose the latest condensing models to benefit from the technology, which continues to improve year after year.

Condensing boilers capture the heat still present in flue exhaust gases and water vapour condensation, processing them through a secondary heat exchanger to, among other tasks, heat colder water returning from your radiators.

By selecting a modern condensing boiler, you'll save money on your gas bills as well as benefitting the wider environment.

Is the Vokera Evolve C 28C combi boiler rated as environmentally friendly?

The effects of climate change on the environment are leading many homeowners to question the damage they might be doing by the way they heat their homes.

Central heating accounts for 14% of greenhouse gas emissions in the UK. In larger British cities, gas boilers emit dangerous levels of nitrogen dioxide into the atmosphere.

Would choosing a Vokera Evolve C 28C combi help the environment? Let’s see what the performance figures suggest.

The energy efficiency rating of the Vokera Evolve C 28C is 94% with a SEDBUK band rating of "A".

Energy efficiency tests record how much energy is wasted on non-core functions during an operation.

By law, all boilers manufactured and supplied in the UK must have a minimum energy efficiency performance level of 92% (equivalent to a SEDBUK "A" grade). Up to April 2018, the minimum performance level was 88% (88% and 89% are equivalent to a SEDBUK "B" grade and 90%+ an "A" grade).

Will I be covered if the Vokera Evolve C 28C combi breaks down?

The Vokera Evolve C 28C boiler is provided with a parts and labour warranty lasting 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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