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Johnson And Starley QuanTec 30 boiler

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Plumbproud rating

%

Johnson and Starley QuanTec 30 Combi Gas boiler

This Johnson and Starley QuanTec 30 Combi boiler scores TBC% on our PlumbProud boiler quality benchmark tests. To determine our rating, we consider many factors, such as the cost of installation, manufacturer guarantees, energy efficiency, and likely running costs.

We estimate that this Johnson and Starley QuanTec 30 Combi boiler will cost £TBC fully installed through PlumbProud provided that the fit is straightforward.

To receive a free quote on the Johnson And Starley QuanTec 30 and to get professional guidance and advice on whether this Johnson and Starley QuanTec 30 Combi boiler is the right choice for your home, please call us on 01604 343053, enter your postcode in the quote boxes on this page, or click here to email us.


Installed price around

£TBC

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Johnson and Starley QuanTec 30 Combi Gas boiler frequently asked questions

What type of boiler is the Johnson And Starley QuanTec 30?

If you’re looking for a combi boiler for your house or flat, then the Johnson And Starley QuanTec 30 is one you may wish to consider.

In older British homes, traditional boilers required you to find room for one or more storage tanks. One tank would keep hot water warm and the other stored cold water for later heating. Manufacturers introduced combi boilers to the UK in the 1970s so that homeowners could get the warmth and hot water they needed without having to sacrifice too much valuable space – remember that residential property in this country is among the smallest in the Western world.

Combi boilers deliver hot water to your radiators and taps using water they draw directly from the mains supply. As mains water travels through a combi boiler, the technology within it heats the cold water instantly and on demand. The hot water is then distributed throughout your house.

Combi boilers have one drawback, however: they can only heat a certain amount of water within a given time. For example, if someone uses the shower and another person uses the hot water tap at the same time, water pressure drops because water reaches each point differently.

Should I install a Johnson And Starley QuanTec 30 combi boiler in my house or apartment?

Whether this Johnson and Starley QuanTec 30 Combi boiler is right for where you live depends on its size or "output" level. Size does not mean its physical dimensions - it means how powerful it is.

The output level of a boiler tells you how much power it has to heat the water coming from your taps and warming up your radiators. The higher the output level, the greater the volume of water it can heat up.

If the output (measured in kilowatts) is too high, you'll pay higher gas bills and your water will be piping hot. Too low and the water coming out of your taps and being fed into your radiators will often be lukewarm.

The Johnson And Starley QuanTec 30 combi outputs at a maximum of 23 kW, so which types of property would this Johnson and Starley QuanTec 30 Combi boiler be appropriate for?

Most experienced heating engineers would likely recommend that, at this level of output, this Johnson and Starley QuanTec 30 Combi boiler would be a suitable choice for smaller homes and apartments with up to 10 radiators and one bathroom.

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 Johnson and Starley QuanTec 30 Combi boiler's flow rate is 12 L/m.

Like all combi boilers, the Johnson And Starley QuanTec 30 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 Johnson And Starley QuanTec 30

The Johnson And Starley QuanTec 30's dimensions are TBC mm [H] x TBC mm [W] x TBC mm [D].

Is the Johnson And Starley QuanTec 30 non-condensing or condensing?

We recommend that you select a condensing boiler like the Johnson And Starley QuanTec gas Johnson And Starley QuanTec 30 for your home if possible because of the environmental benefits and the money you'll save on your gas bills.

Condensing boilers are much more energy-efficient than older, non-condensing models as they capture and recycle the heat still present in the water vapour condensation and flue exhaust gases that your boiler creates when burning gas for reuse.

How environmentally friendly is the Johnson And Starley QuanTec 30 combi?

How we heat our homes and the damage we might be doing to the environment as a result has become an important point of concern to many homeowners worried about climate change.

In the UK, central heating is responsible for 14% of greenhouse gas production. Domestic gas boilers emit large quantities of nitrogen dioxide in British cities.

If you decide to install a Johnson And Starley QuanTec 30 combi in your home, will you be helping the environment with your choice? Let’s have a look at the figures.

By law, boilers manufactured and supplied in the UK must achieve a SEDBUK rating of "A" and work at a 92% minimum efficiency. Before April 2018, a minimum of 88% energy efficiency needed to be achieved (88/89% = SEDBUK "B" and 90% = SEDBUK "A").

Following official testing, the Johnson And Starley QuanTec 30 was given an efficiency rating of 93% with a SEDBUK rating of "B".

Energy efficiency is a measure of how much energy is used and how much is wasted when a boiler is operating.

The ERP (or Energy Related Products Directive) is European legislation which applies to all products that consume energy throughout their lifetime.

Its purpose is to encourage manufacturers to offer products that are kinder to the environment by reducing harmful gas emissions at all stages, from production and end use right through to disposal.

The ERP rating for the Johnson And Starley QuanTec 30 is "A" for heat and "A" for water.

How long is the warranty offered by the manufacturer for the Johnson And Starley QuanTec 30 boiler?

Johnson And Starley’s QuanTec 30 boiler includes a parts and labour warranty of 8 years.


Johnson and Starley QuanTec 30 Gas Combi boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating93%
Band ratingB
LPG Compatible?No
P/L Warranty8 Years
Output in kW23 kW
MountingWall
Flow rate12 L/m
ERP HeatA
ERP WaterA

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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Johnson and Starley QuanTec 30 Combi Gas boiler

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Plumbproud rating for this boiler
TBC%

According to our PlumbProud boiler quality scoring system, we rate this model TBC%. We rank boilers using a number of different factors including price installed, manufacturer guarantees, energy efficiency, likely running costs, and more.

Fitted by an experienced Gas Safe PlumbProud engineer, the cost for this Johnson and Starley QuanTec 30 Combi boiler will be in the region of £TBC on a standard, non-complicated installation.

Get a better understanding of installation costs for the Johnson And Starley QuanTec 30 by entering your postcode in the box supplied on this page. You can also call our professional team with any boiler-related queries on 01604 343053. Alternatively, please click here to email us.


Installed price guideline
£TBC

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Johnson and Starley QuanTec 30 Gas Combi boiler specifications

Powered by GasGas
LocationExternal
Condensing?Yes
Efficiency rating93%
Band ratingB
LPG Compatible?No
P/L Warranty8 Years
Output in kW23 kW
MountingWall
Flow rate12 L/m
ERP HeatA
ERP WaterA

Johnson and Starley QuanTec 30 Combi Gas boiler frequently asked questions

Is the Johnson And Starley QuanTec 30 a regular, combi or system boiler?

Looking for a gas combi boiler for your house or flat? If you are, the Johnson And Starley QuanTec 30 boiler may be worth considering.

Combi boilers are excellent for providing hot water and heat for your radiators just when you need it. When you have a combi boiler installed in your home, you just turn on the tap and the hot water for your bath, shower, washing dishes and other activities is there when you need it. It also provides the heat you need to keep your radiators warm.

A combi boiler heats the cold water passing through it, which it draws from the mains. This newly heated water can then be distributed to whichever hot tap or radiator needs it.

In the past, boilers needed at least one storage tank to hold water that was either already heated or would be heated later. Sometimes, you'd have to wait for hot water because there was none left. In addition, storage tanks took up a lot of space and most UK homes are pretty small.

The main disadvantage to combi boilers is that they can only heat a certain amount of water at any one time, meaning the pressure, volume and temperature of water will decrease if more than one tap is on at the same time or if both the shower and washing machine are on together.

Is a Johnson And Starley QuanTec 30 combi boiler appropriate for my house or apartment?

You should make sure that the boiler you install in your property is the right "size". And size doesn't mean its physical dimensions, size means how much power it has - the "output".

Output measures in kilowatts how much power a boiler can use when heating water for your radiators or taps. The higher the output rate, the more water it can heat.

If the output rate is too low, your hot water might often be only lukewarm, and if it is too high, you will be paying more for your gas than you need to.

The Johnson And Starley QuanTec 30 combi boiler has an output of 23 kW, so which types of property would it be most appropriate for?

An experienced PlumbProud Gas Safe engineer would almost certainly recommend that this Johnson and Starley QuanTec 30 Combi boiler would be most suitable for smaller homes and apartments with up to 10 radiators and one bathroom.

With combi boilers, you need to consider the flow rate as well as the output rate. The flow rate (shown in litres per minute) measures how much water your boiler can draw from the mains which it then instantly heats and distributes to your taps and radiators.

However, a high flow rate is of little to no value if your local water pressure is low. If your local mains water pressure is 10l/m and your flow rate is 12l/m, your boiler will only be able to process 10l/m.

If you live in an area with high water pressure but your household has multiple bathrooms and/or radiators and many members of your household want to use hot water at the same time (like morning or evening baths or showers), it's unlikely that you'll be able to find a combi with a high enough flow rate.

As an indication, a power shower needs about 10 litres of water per minute, whereas the flow rate of this Johnson and Starley QuanTec 30 Combi boiler is 12 L/ml/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.


Johnson And Starley QuanTec 30 dimensions

The Johnson And Starley QuanTec 30 boiler measures TBC mm [H] x TBC mm [W] x TBC mm [D] in size.

Johnson And Starley QuanTec 30 – condensing or non-condensing?

The Johnson And Starley QuanTec 30 is a condensing gas boiler - this is the type of boiler we recommend to most clients because they're better for the environment and they will save money on annual fuel bills.

A condensing boiler captures and recycles the warmth still present in both the flue exhaust gases and water vapour condensation created when gas is burned to provide your boiler with power.

This means it needs less gas to operate and it uses this extra energy to perform a number of tasks, including heating the colder water that comes back to the boiler from the radiators in your home.

How environmentally friendly is the Johnson And Starley QuanTec 30 combi?

As more of us are increasingly concerned about climate change, how we heat our homes and its impact on the environment has become an issue of importance to homeowners.

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.

Is the Johnson And Starley QuanTec 30 combi an environmentally friendly choice for your home? Let’s have a look at the figures.

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 Johnson And Starley QuanTec 30 is rated as 93% energy efficient, equivalent to a "B" SEDBUK rating.

All products that consume energy throughout their lifespan must comply with the Energy Related Products (ERP) Directive.

Companies are legally obliged to reduce harmful gas emissions at all stages of a product's life cycle, from initial manufacturing right through to final disposal as well as when the product is in actual use.

The Johnson And Starley QuanTec 30 scores "A" for heat and "A" for water.

Am I covered if the Johnson And Starley QuanTec 30 combi boiler breaks down?

A parts and labour warranty of 8 years is included when you purchase the Johnson And Starley QuanTec 30 boiler through PlumbProud.


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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