Main Main Eco Compact 30kW Combi Gas Boiler

Main Eco Compact 30kW Combi Gas Boiler
Total Cost
Manufacturer Main
Boiler Model Main Eco Compact 30kW Combi Gas Boiler
Condensing boiler? Condensing
Energy Efficiency Rating 93%
Energy Band A Rated
LPG model/Conversion kit Yes
Manufacturer Warranty 5 Years
Heating Output 30kW
Wall Mounted or Floor Standing Wall Mounted
DHW Flow Rate 12.5 l/min
Total Cost £1,550
ERP Rating A Rated
Hot Water Max Output

Main eco compact 30kw combi boiler Review

main eco compact 30kw combi boiler

The Main Eco Compact 30kw combi is an efficient gas-fired boiler with quality with many benefits and great low prices. It is a perfectly light weight compact cupboard fit boiler. You can also choose from a variety of outputs to meet your hot water and heating needs.

Get a fixed price quote on a new A-rated combi boiler in 20 seconds click get a quote

Its compact size, lightweight, and wall mounting make installation easy and save you time and money. Once the boiler is installed, you will be able to reap all of the benefits that a high-efficiency boiler can bring to your home. It has a 93% efficiency rating, and an ErP A rating for hot water and heat.


Why choose the Main eco compact 30kw?

This well-made Main combi boiler could be the right choice for you if you are looking for a boiler that is affordable and with an ERP water heating efficiency rating of A, it can help you save money on your gas bills.

This lightweight boiler, in addition to Main Heating’s proven technology, is compact and compatible with Baxi uSense wired smart thermostat, and comes with a five year warranty*

  • You have the option of either 25kW or 30kW
  • 5-year parts & labour warranty
  • Boiler Plus compliant
  • Energy Saving Trust Endorsed
  • Lift weight 29.5kg
  • Fits in a compact cupboard
  • Low NOx emissions – Class 5 (the best)
  • Brass hydraulics block
  • Top & central flue
  • Stand-off frame available
  • Rigid filling link
  • Certified to work with 20% hydrogen

How does the Main eco compact 30 combi work?

The Main Eco Compact Combi boiler is a combination boiler that heats water directly from mains. This means there are no loft tanks or hot water storage cylinders required for the boiler to work.

The Main Eco Compact Combi does not require any external central heating pumps. This makes it a great choice for homes with limited storage. A combi boiler is a great option for a small bathroom. Combi boilers are not able to handle high hot water demands and can’t support multiple showers or baths at once.

While it is important to look at reliability and quality when buying a boiler, the Main Eco Compact Combi is very affordable. The boiler is energy-efficient and has many great features. Plus, the warranty is quite good for a combi. The only problem is Main’s below-average Which score. Brand score is a concern. You might want to review the test results to find out what customers and engineers have to say about this boiler before making a decision.

The advantages of main eco-compact 30kw combi boilers

  • A new boiler costs less than other brands
  • These are ideal for small and medium-sized houses
  • Fits in a compact cupboard
  • Installation, use, and maintenance are simple
  • Boiler Plus certified and Energy Saving Trust approved
  • Low NOx emissions – Class 5
  • Maximize energy efficiency and reduce carbon emissions.
  • Compatible with Baxi uSense smart thermostat – Control heating via smart device
  • Central flue optional stand


  • Only comes with a 5 year warranty
  • Hasn’t had the best reputation in years but has greatly improved recently

Main Eco Compact 30kw combi boiler price

One of the main reasons people choose this new combi boiler is that it is at such a low price. At around £600 you could be looking at getting this boiler fully installed by a Gas Safe registered engineer for around £1,600. The benefits of this boiler are that it is very compact, but if you are wanting a budget boiler with a longer warranty then there are other options out there for the same price with up to 10 year boiler warranty.

Who are our fitters?

We use our own Gas Safe installers and the best installers the UK has to offer. Every single one is Gas Safe registered and has been thoroughly vetted.

Get a Fixed Price Now

Get a great price on a Which? Best Buy boiler online in minutes

Pick your install date | £0 Deposits | 0% Interest-FREE

Don't just take our word for it...

Read More Reviews
12-Year Warranty on Worcester Bosch & ViessmannGet a Quote Now >