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 4.8 stars

1,496 reviews

 4.8 stars

1,496 reviews

Main Boilers: Compare Efficiency, Warranty & Price

Main Heating, a subsidiary of Baxi, has an impressive 75 years of experience in manufacturing domestic gas appliances and are proud of their ‘straightforward’, ‘no frills’ approach to heating solutions.

While Main boilers have a lower price tag than many other manufacturers, there units are still highly reliable models. If you’re looking for a new boiler that won’t break the bank then a Main boiler is a great choice. When comparing boilers, there are a few things that you’ll need consider as part of the comparison: output rating, efficiency, warranty and price. We already know that Main boilers are affordable but let’s take a look at the importance of each of these.

  • Output rating: Install a boiler with the wrong output rating and you could end up with a heating system that fails to meet demand or will cause your energy bills to increase. The output rating is measured in kilowatts (kW) and reflects the power of the boiler in terms of how much heating and hot water it will be able to provide to your home.
  • Efficiency: The process of burning natural gas produces usable energy and waste gases. When looking for a new boiler, you want a boiler that converts as much of the fuel as possible into usable energy – this is shown as a boiler’s efficiency rating. A boiler with a high efficiency rating could help to lower your energy bills.
  • Warranty: A boiler is a big investment so it’s good to know that you’re covered after the installation. And this is where the warranty comes in. A warranty is a promise from the manufacturer that they’ll cover the parts and/or labour in the event of a fault. Boilers come with a 1 year warranty as standard with manufacturers offering longer warranties on many of their boilers. Main boilers come with warranty periods of 3-5 years.
  • Price: Main boilers are a budget-friendly option with units ranging from around £600 to £700.

Considering a Main boilers? See how they compare with other models and manufacturers with our Boiler Comparison Tool. When you see a boiler you like the look of, simply hit the ‘add boiler’ symbol to include it in your comparison. You can add up to 4 different boilers and we recommend making one of them your existing model.

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Review Main combi boiler prices

Combi boilers have become the most popular boiler type in the UK thanks to being cost-effective space-saving units that don’t require any additional tanks or cylinders. Main combi boilers are efficient options for homes with 1-2 bathrooms and up to 15 radiators.

Boiler Model kW Efficiency Warranty Typical Price


Main Eco Compact 25kW Combi Gas Boiler 25kw 93% 5 years £620 VIEW
Main Eco Compact 30kW Combi Gas Boiler 30kw 93% 5 years £710 VIEW
Main Combi Eco Elite 25kW Gas Boiler 25kw 89% 5 years £590 VIEW
Main Combi Eco Elite 30kW Gas Boiler 30kw 88.7% 5 years £670 VIEW

A system boiler needs to be installed within a heating system which also includes a hot water cylinder. Main system boilers are efficient and budget-friendly solutions for homes with up to 15 radiators.

Compare costs of Main system boilers

Boiler Model kW Efficiency Warranty Typical Price


Main Eco Compact 15kW System Gas Boiler 15kw 93% 5 years £610 VIEW
Main Eco Compact 18kW System Gas Boiler 18kw 93% 5 years £675 VIEW
Main System Eco Elite 24kW Gas Boiler 24kw 89.1% 3 years £618 VIEW
Main System Eco Elite 28kW Gas Boiler 28kw 88.8% 3 years £635 VIEW

To get a quote for a new Main boiler tailored to your home today send us an enquiry today. We’ll put you in touch with up to 3 Gas Safe heating engineers in your area who will provide free, no-obligation quotes.

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Main Combi Eco Elite Boilers & Prices

The Main Combi Eco Elite boiler has been designed with real versatility in mind.

A single unit that will heat your water as needed and provide reliable central heating.

The boiler is A-rated, offering impressive performance, energy conversion and conservation, resulting in improved efficiency and lower gas bills for homeowners.

Simple to install and service the Combi Eco Elite is available in 25kW and 30kW output models.

Quick and easy to install and service, the Main Combi Eco Elite includes a control panel and filling loop as standard as well as a 2-year parts and labour warranty.

Benefits of a Main Combi Eco Elite boiler

Main Combi Eco Elite Gas Boiler 25kW

  • Easy-to-use controls
  • 24-hour clock and filling loop included
  • 25kW or 30kW output models
  • 5-year parts and labour warranty (available on product registration)
  • A rating Energy Efficiency
  • Low NOx Emissions – rated class 5 (the best)
  • No compartment ventilation required
  • Integral frost protection
  • Manufactured in UK, using high quality components
  • Compact sizes make combi boilers perfect for smaller properties
  • Ideal where there is little or no loft space
  • No need for a hot water cylinder allows increased living space
  • No cold water storage tank frees up a loft for conversion
  • No risk of loft pipework freezing
  • Less pipework in the home makes installation typically cheaper

There are so many choices to make when it comes to making the decision to replace your boiler and we understand it can be an intimidating task, particularly when you consider the potential spend involved. While it may be tempting to go with the cheapest option we strongly recommend that you take the time to ensure you choose the right system for you and your home. Quick decisions now may mean costly repairs or replacements down the line.

Let us simplify by providing you with up to three no obligation, free quotes from professional installers in your area. Send us an enquiry today. Get quotes for a new Main boiler.

Main System Eco Elite Boilers & Prices

A Main System boiler is the ideal choice for a home that needs a large supply of hot water in reserve. A separate storage container (usually kept in an airing cupboard or loft) ensures a reliable source of hot water for all your taps, showers and radiators. These boilers are available in 24kW or 28kW so that you can choose the best option to suit your home and energy efficiency needs.

Making the right choice will both help save the environment and save money on fuel bills. Each boiler is user friendly and simple to install and maintain. This is achieved through the use of a clean design has user-friendly controls and display panels which reduce the time required for service and maintenance.

Benefits of a Main System Eco Elite Boiler

Main System Gas Boiler Eco Elite 28kW

  • 3 year parts and labour warranty (on product registration)
  • A rating Energy Efficiency
  • Pre-plumbing jig included
  • Low NOx Emissions – class 5 (the best)
  • Compatible with flue options up to 20m
  • Pump overrun built in
  • No compartment ventilation required
  • Integral frost protection
  • Grundfos pump on all models
  • User friendly controls
  • Upward piping
  • Built entirely in the UK
  • Ideal for homes with more than one bathroom
  • Hot water supplied evenly to all taps at the same time
  • No risk of pipes or tanks in the loft leaking or freezing
  • Energy efficient for lower fuel bills
  • Built-in components makes installation quicker and neat

The next task is to find an installer to get your new system up and running. Installation costs can vary so make sure you get comparative quotes.

Let us take the hard work away and send us an enquiry today; we will provide you with up to 3 quotes from reputable installers in your area Get quotes for a new Main boiler.

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Main boiler service

It’s important to keep your boiler in the best possible condition with an annual boiler service by a professional engineer. This will ensure the boiler can operate as efficiently as possible, keeping heating bills to a minimum, and that there are no potential safety issues to be concerned about. A boiler service is also a great way to catch and fix small repairs before they have the chance to worsen over time and cause an expensive breakdown. Find out what’s involved in an annual boiler service, why it’s so important, the benefits and how much they cost in Main Boiler Service.

Main boiler warranty

Every boiler manufacturer offers a standard warranty with their boilers which last between 1-10 years. The warranty is your insurance policy and means if a fault develops the manufacturer will resolve it within a specified time frame. Some warranties include both parts and labour while others may only cover parts. The most important thing to remember is to get your boiler serviced by a Gas Safe registered engineer every year as failing to do so is likely to invalidate your warranty. For more detail about this brand’s warranty (including the small print) take a look at Main Boiler Warranty.

Main boiler repair advice

Even the highest quality boiler can develop faults and problems as they age. Some are minor issues you may be able to handle yourself but most will need a Gas Safe registered engineer to diagnose and repair the problem. To find out if there are any common problems associated with this manufacturer you can read our guide to Main Boiler Repairs & Common Main Boiler Problems.


Visit the Main website for further details.

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