Worcester Bosch Greenstar 30Si Compact Combi Boiler Review

Worcester Bosch 30Si Compact Combi Boiler Review
worcester bosch greenstar

When it comes to getting a new boiler for your home, you must make the right choice.

A boiler purchase isn’t something you do every day.

The cost of a new boiler isn’t one you wish to make regularly either! You can not go wrong with a Worcester boiler model.

Worcester Bosch has been around a very long time; the Worcester Bosch Greenstar range offers some of the best compact combi boilers.

As you will have no doubt seen, there are plenty of replacement boilers on the market today.

So how do you know which one is the right one for you?

Well, if you’re looking for a compact model that packs a punch, this Worcester Bosch Greenstar 30Si Compact combi boiler may be for you.

Our review below will help you decide.

  • What you need to know about the Worcester Greenstar Si Compact range
  • How the 30Si Compact could be right for your home. 
  • Worcester Bosch Greenstar 30 Si compact Price.

First things first, the price! The Worcester Bosch Greenstar 30Si Compact combi boiler costs around £1,700 to £2,200. boilers on finance

At Boiler Central we offer various finance options so don’t panic!

What home does the Worcester 30Si Compact Combi Boiler Suit?

A boiler that’s perfect for small and medium-sized homes

Do you live in an apartment?

Perhaps you’ve got a compact one-three bedroom house?

The Greenstar 30Si Compact is the perfect match to such any 3 bedroom property and will fit in a standard size kitchen cupboard.

The dimensions are 69 cm high by 39 cm wide, with a depth of 28 cm.

You can have the Worcester Bosch Greenstar 30 Si compact combi boiler virtually installed anywhere in your home!

While most people have them fitted in kitchens or airing cupboards, you’ve got other options too.

One example might be to install it in your loft so that it’s out of the way.

If you have a garage in your home, why not have it fitted in there instead? For those of you seeking a garage or loft install, you need not worry about cold temperatures. That’s because the Worcester Bosch Greenstar 30Si Compact has built-in frost protection!

Instant Hot Water

Don’t you hate it when you turn on your hot water tap only to find you’ve got to wait about ten seconds before you actually get hot water? Thankfully, those days are over with the Worcester Bosch Greenstar 30Si Compact A-Rated boiler.

Yes, combi boilers should provide you with instant hot water when you need it.

However, some models on the market don’t quite live up to that promise.

The Greenstar 30Si Compact gives you hot water on demand with no long wait times!

What’s more, you can also adjust the temperature of the hot water to suit your needs.

The hot water output on these boilers is suitable for small homes or apartments and provide a good 10.7 litres per minute flow rate and efficiency rating.

Boiler controls worcester bosch smart thermostat

The downside of some otherwise excellent boilers on the market is their operating controls.

Many of them are unnecessarily complicated, and seldom make sense!

One of the features of the Worcester Bosch Greenstar 30Si Compact you’ll love is its simple controls!

It has two rotary dials that you can use to select heating and hot water temperatures.

Additionally, there’s an easy to read LCD screen and an analogue pressure gauge.

Another feature is the iconic Worcester Bosch blue light found in all modern Worcester Bosch boilers.

When the light gets illuminated, it means there is currently a demand for heating or hot water. In the unlikely event that your Worcester Greenstar 30Si develops a fault-finding, the light will flash.

If the Worcester Boiler blue light is not on, there is no demand for heating and hot water.

Boiler controls are something most people need to operate regularly. When you do need to check on the Worcester Bosch Greenstar 30Si Compact’s settings, it’s good to know how easy it is to do so.

When you have finished adjusting the controls or checking the boiler’s status, you can close the flush-fitting panel.

In the closed position, it blends in with the rest of the boiler’s design. That’s perfect if your boiler is in a public place because it can easily blend in with the background.

Smart thermostats 

At the time of installation, you can have the Worcester Bosch Greenstar 30Si Compact connected to a standard wall thermostat. If you’ve got Internet access, you may wish to upgrade to a ‘smart’ thermostat instead.

Upgrading to a state of the art thermostat means you have full control of your hot water and central heating system from anywhere.

Yes, that’s right: you don’t even need to be at home to put your heating on, for example!

Such systems are easily configurable via a smartphone app.

So, if you’ve got a compatible iPhone or Android device, you’ll have no issue using the app on your phone.

Controls such as Hive Heating are the perfect addition to compliment your Greenstar 30Si Compact boiler.

Take a look at our review of the Hive Heating system for more information.

Compatible with piped gas and LPG

It’s easy to forget that not all homes have a piped gas connection.

In those cases, they must use an alternative such as LPG that gets delivered in canisters.

If you have to use LPG in your home for your gas needs, the Worcester Bosch Greenstar 30Si Compact has you covered.

There is an LPG version of the boiler available to buy.

You’ll be able to enjoy the same benefits as the standard gas model, such as on-demand hot water and a 24 kW central heating output.

Buy Worcester Bosch Boilers
worcester bosch boiler

Buy the Worcester Bosch Greenstar 30Si Compact combi boiler and know that it won’t let you down.

Worcester Bosch’s heritage dates back to 1962 when it was initially known as Worcester Engineering Co Ltd.

These days, the company is part of the Bosch group of companies. However, the design and manufacture of the boilers still get carried out in the UK.

There are many reasons why it makes sense to get the Worcester Bosch Greenstar 30Si Compact combi boiler.

Worcester Bosch 30Si Boiler Advantages

  • For a start, it boasts an array of features and benefits that will best meet your needs.
  • Secondly, it’s also currently a Which? Best Buy for 2019. As we all know, the Which? Tests are quite stringent, and so such awards aren’t given away lightly. worcester bosch Which?
  • Worcester Bosch also has a royal warrant, meaning it’s an official supplier to the Royal Family.
  • There aren’t many boiler brands that can boast such a prestigious honour! Worcester boilers are certainly well known for their reliability similar to Viessmann.


Last but not least, it’s important to note that the Worcester Bosch Greenstar 30Si Compact comes with a five-year guarantee as standard.

If your Worcester Bosch Greenstar 30 Si occurs any problems or faults, you have the peace of mind that the Worcester Bosch boiler cover will have you covered.

If any part of your new boiler were to fail due to a manufacturing fault, you can be sure that it’ll get replaced quickly and for free.

You can also have the option from the manufacturer to increase the length of your warranty from 5 years to 10 years.

They must, however, be serviced each year by an accredited installer or boiler servicing company like UK Home Cover who have UK wide heating engineers.

If you like the sound of the Greenstar 30Si combi boiler but would prefer to buy online, you can get a fixed online price now.

You can even buy your boiler online and apply for boiler finance within minutes with an instant decision! boilers on finance

Simply answer 9 questions about your home (no personal information required, just the first part of your postcode). Within 20seconds the best boiler at the best price will be recommended for you.

If you think you may like a more powerful boiler after reading the 30Si boiler review, take a look at the Worcester Bosch Greenstar 38CDI Classic boiler.

Click here to price your new boiler now.

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