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Last updated: 17 May 2024

30kW Boilers – Everything You Need to Know

30kW boiler

So you’ve done your research and know that you need a 30kW boiler for your home. However, there are still a few other factors to consider, such as which type of boiler you want and what kind of fuel you want to use.

There are a variety of different types of boilers out there, all of which also have a range of high-quality models to choose from. Therefore, it’s important to get an overview of your options and compare them – in this article we’ll help you with just that.

30kW System Boilers

There’s a lot to know about system boilers but essentially it is a type of boiler that works in conjunction with a separate cylinder for storing water.

System boilers come in a range of sizes including 30kW. Generally, they’re best suited for larger homes that have a higher demand for heating and hot water. A 30kW boiler tends to be best suited for homes with approximately 20 radiators.

Below we’ve mentioned some of the best system boiler 30kW options to give you an idea of what’s available.

1. Worcester Bosch Greenstar 8000 Style 30kW System Gas Boiler

This Worcester 30kW system boiler is part of their award-winning Greenstar range and one of the most highly-rated boilers in the UK. It is also available in 35kW for those who need a bit more power.

This is also one of the few boilers that has 2 high-gloss colour options to choose from: black and white. Below are some of the specs for this Worcester system boiler in 30kW:

    • LPG compatible: Yes
    • Efficiency: 94%
    • Band rating: A-rating
    • Warranty: Up to 12 years
    • Estimated price (excl. installation): £1,317

2. Vaillant ecoTEC plus 630 (30kW) System Gas Boiler

Vaillant offers a few 30kW boiler models, including the Vaillant ecoTEC plus 30kW system boiler. The ecoTEC plus is considered to be its flagship boiler, and comes in a range of output sizes from 12 – 64kW, including this 30kW boiler.

Vaillant are also working towards a greener future, as they are currently trying to create a 100% hydrogen-ready boiler to help reduce greenhouse gases.

    • LPG compatible: Yes
    • Efficiency: 94%
    • Band rating: A-rating
    • Warranty: 10 years
    • Estimated price (excl. installation): £1,363

3. Ideal Logic Max S30 (30kW) System Gas Boiler

Ideal is a British company with over 100 years of experience. Ideal’s flagship range, Ideal Logic, has a few 30kW boiler models available. This includes the Ideal Logic Max system boiler. This model is also available in smaller sizes, including 24kW, if you don’t think your hot water and heating demands require 30kW.

    • LPG compatible: Yes
    • Efficiency: 93%
    • Band rating: A-rating
    • Warranty: 10 years
    • Estimated price (excl. installation): £1,084

As you can see, there are plenty of viable options to choose from when it comes to 30kW system boilers. However, what may make or break which model you choose are the installation costs. Installation costs can vary vastly depending on the specific installation company’s rates and whether or not you’re having a like-for-like boiler replacement.

That’s why it’s important to compare quotes to make sure you get the best price possible. To do this, you normally can call local installers one-by-one and repeatedly explain what you’re looking for. But this can take a lot of your valuable time. Luckily, GreenMatch has a much faster way to do this.

At GreenMatch, we can provide you with up to 4 free boiler quotes from installers in your area. You only need to fill in the form once, as opposed to spending hours explaining your heating situation to each installer. And the best part? You’re under no obligation to accept any of the offers. Simply click the button below to get started.

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30kW Combi Boilers

First thing’s first – what is a combi boiler? Basically, it is a compact boiler unit that doesn’t require extra components such as a hot water cylinder. It provides hot water on demand and is the most popular type of boiler in the UK.

Combi boilers generally come in smaller output sizes. However, there are some more powerful combi boilers with 30kW available. A 30kW combi boiler is usually recommended for homes with up to 15 radiators.

What is the best combi boiler available in 30kW, then? We’ve listed some of the UK’s favourites below to help make your decision-making easier.

1. Baxi 830 (30kW) combi gas boiler

Baxi is a UK-based company founded in 1825. Baxi offers a range of 30kW boilers including this 30kW combi boiler. Its 800 range is also available in other output sizes, such as 25kW.

    • Hot Water Max. Output: 30kW
    • Central Heating Max. Output: 21.2kW
    • LPG compatible: No
    • Efficiency: 93%
    • Band rating: A-rating
    • Warranty: 10 years
    • Estimated price (excl. installation): £955

2. Viessmann Vitodens 200-W B2KE 30kW combi gas boiler

Viessmann is a German-based company expanding around the world. It is known for its top-quality boilers including its Vitodens 200-W 30kW combi boiler. This particular model is also available in size 35kW for those who need a bit of extra power. And for those not connected to the gas grid, this particular boiler is also compatible to run on LPG (Liquefied Petroleum Gas).

    • Hot Water Max. Output: 30.5kW
    • Central Heating Max. Output: 25.4kW
    • LPG compatible: Yes
    • Efficiency: 94%
    • Band rating: A-rating
    • Warranty: Up to 10 years
    • Estimated price (excl. installation): £1,550

For combi boilers, you’ll need to consider both the central heating and domestic hot water output when choosing one for your home. This can be difficult to get right without the opinion of an expert. That’s why we always recommend getting advice from a professional installer so that you don’t risk wasting money on an unsuitable boiler.

But how do you find a reliable and qualified installer?

At GreenMatch, we can quickly connect you with local qualified installers. This means you don’t need to waste hours researching and directly contacting installers near you to find the best deal. Click the button below and we’ll send you up to 4 quotes completely free of charge which you can objectively compare to secure the best deal.

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30kW Heat-Only Boilers

A heat-only boiler, also commonly known as a conventional or regular boiler, is the UK’s traditional boiler heating system. Features of a heat-only boiler include having a water tank in your loft and a hot water cylinder in an airing cupboard.

There are various pros and cons of a conventional boiler, such as being able to meet high hot water demands but at the cost of taking up a lot of space in your home. If you feel like this type of boiler is the right choice for your home, then you can check out a selection of the top conventional boilers below:

1. Baxi 830 Heat 30kW regular gas boiler

We already mentioned the combi version of this boiler above. Due to its popularity, it’s also available as a conventional boiler. If you have up to 15 radiators in your home then the combi 30kW boiler is likely more suitable for you. Whereas if you have around 20 radiators then this 30kW conventional boiler might be a better fit.

    • Central Heating Max. Output: 30kW
    • LPG compatible: No
    • Efficiency: 93%
    • Band rating: A-rating
    • Warranty: 10 years
    • Estimated price (excl. installation): £944

2. Vaillant ecoFIT Pure 430 (30kW) regular gas boiler

Another great Vaillant 30kW boiler option is the ecoFIT Pure 430 conventional boiler. This particular model is also available in 4 smaller sizes (12.3kW, 15.2kW, 18.3kW and 25.4kW) and 1 larger size (34.8kW). So, if you’re having second thoughts about whether a 30kW is right for your home, with this range you’re still likely to find a size that works for you.

    • Central Heating Max. Output: 30.5kW
    • LPG compatible: No
    • Efficiency: 94%
    • Band rating: A-rating
    • Warranty: 10 years
    • Estimated price (excl. installation): £1,002

3. Ideal Logic Max Heat H30 (30kW) regular gas boiler

This is another boiler from Ideal’s Logic flagship range. The 30kW boiler is the most powerful boiler in the Logic Heat Max range. If you’re not 100% sure whether the 30kW boiler is right for your home, you can also go one size down with the 24kW boiler.

    • Central Heating Max. Output: 30.3kW
    • LPG compatible: Yes
    • Efficiency: 93%
    • Band rating: A-rating
    • Warranty: 10 years
    • Estimated price (excl. installation): £1,117

It’s important to note that conventional boilers are generally only recommended in the case of like-for-like boiler replacements (updating an old conventional boiler with a newer model). Since this boiler type requires additional parts installed throughout the house, it can be especially disruptive and costly if you’re changing from a combi or system boiler.

30kW Electric Boilers

Electric boilers can be a great option when used in conjunction with solar pv panels. However, unfortunately, 30kW electric boiler options and other larger output sizes are not common. In general, electric boilers are more suitable for smaller homes that require smaller output sizes. For example, if you live in a house with 10 radiators then it may be worth considering a 15kW electric combi boiler.

30kW Biomass Boilers

Biomass boilers can be a great option for those who live in rural areas and want a potentially low-carbon heating option. This boiler type is one of the best boilers for 5 bedroom houses as they require a lot of space for both the boiler itself and storing the fuel.

There are a few manufacturers in the UK which offer 30kW biomass boilers, such as Froling and Grant. So, you have enough options to choose from. However, when it comes to biomass boilers you will also need to make other decisions, such as which type of biomass fuel works best for you. On top of that, there are also restrictions on biomass boilers depending on where you live in the UK.

This is why it’s always important to seek advice from a professional heating engineer to help you figure out which type of biomass boiler best fits your needs and circumstances. At GreenMatch, we can provide you with free quotes from up to 4 local boiler installers so that you can objectively compare and choose the best deals. Simply click the button below to get started.

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FAQ

Bronte McClelland
Written by Bronte McClelland, Writer

Brontë is an experienced writer and editor for GreenMatch. Her passion for sustainability and renewable energy drives her to stay at the forefront of green-energy trends.

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