The Worcester Bosch Greenstar 30i has now been replaced by the Worcester Bosch Greenstar 4000 - the brand’s updated mid-range combi, built on the same much-loved Greenstar i platform but with improved design, controls and performance.
So before you dive into our review of the old 30i, you might want to feast your eyes on our video review of its replacement instead.
Worcester Bosch Greenstar 30i review: all of its ups, and all of its downs
The Worcester Bosch Greenstar 30i may once have been one of the UK’s most popular boilers.
Then again, so was PPI - and we all know how that ended.
In this review, we’ll take a proper look at how the Greenstar 30i stacked up in the areas that actually matter: performance, power output, customer feedback, aftercare and warranty.
But first, an important heads-up.
The Greenstar i range, including the 30i, has now been officially replaced by the Worcester Bosch Greenstar 4000. Worcester Bosch describes the 4000 as the successor to the Greenstar i, and positions it as a combi for small to medium-sized homes with one bathroom.
🎥 Watch our Worcester Bosch Greenstar 4000 video review below.
Are there any better alternatives to the Greenstar 30i?
Yes - starting with its replacement.
If you like the sound of the Greenstar 30i but want the newer version, the Worcester Bosch Greenstar 4000 30kW is the obvious place to start.
It was designed to replace the old Greenstar i range and adds a more modern display, quieter operation, wireless smart control compatibility and updated internals.
Should you buy a Worcester Bosch Greenstar 30i?
Only if you’re buying second-hand knowledge, not a brand-new boiler.
Because while the 30i was once a hugely popular combi, it has now been retired and replaced by a newer model.
So if you’re researching whether a Worcester Bosch Greenstar 30i is any good, what you probably really want to know is whether the Greenstar 4000 is a worthy successor.
Spoiler: that’s the better place to look.
Worcester Bosch Greenstar 30i Review: All of its ups & and all of its downs
Worcester has been churning out boilers since before Coronation Street started and rightfully earned the respect of UK homeowners and boiler replacement companies alike.
The Worcester Bosch Greenstar 30i is straight from the 'Greenstar i' range, joining the Worcester Greenstar 25i - Worcester's cheapest and most popular combi boiler, in fact, the same boiler - just a 5kW's less powerful. See our boiler size calculator for more details on kW's.
The Greenstar i is their 'entry-level' range of combi boilers and still boasts some great features, not least of which is an A-rating for efficiency, a pleasingly novel digital display and a reassuring 'Which?' Best Buy Award.
During the early noughties, an independent consumer association by the name of 'Which?' started rating products and services. Today they release an annual boiler survey based on the feedback of installers, of which Worcester has contiued to perform well, hence the Award.
Are there any better alternatives to a Greenstar 30i?
Overall, Worcester combi boilers are great all-rounders, offering reliability, fantastic warranties, and excellent customer service.
Viessmann boilers, on the other hand, are often said to be technically superior, but since they are manufactured in Germany, parts can be a little more difficult to source. [2024 update - this is no longer an issue].
So ultimately, it's a personal choice - do you value excellent customer service and convenience more? Or superior German engineering?
You can check the latest deals on Worcester Bosch boilers here, and see how the brand compared to another market leader in our Worcester Bosch vs Vaillant Boilers post.
Worcester Bosch Greenstar 30i, top perk:
You'll have got yourself a Worcester, feeling the relief of that peer pressure and convincing yourself it's great because - it's a Worcester, so it has to be?
Customer reviews for Worcester boilers are probably one of the best indications you are bagging yourself a great boiler as they are consistently positive.
Even better with a Worcester boiler, you will have secured yourself a hefty 10-year warranty (through Heatable), giving you long-lasting peace of mind, that if something does go wrong, you won't be left in the lurch.
Learn all about combi boilers in our what is a combi boiler guide and see how the brand fared against Baxi in our Worcester Bosch vs Baxi comparison.
So what makes the Worcester Greenstar 30i tick? A delve into the details
Here are those stats:
Features | Worcester Bosch Greenstar 30i |
ErP efficiency rating | A |
LPG compatible | Yes |
Warranty period | 10 years exclusive to Heatable |
Heating output (kW) | 24 |
Hot water output (kW) | 30 |
Flow rate (l/m) | 12.3 |
Solar compatible | Yes |
Dimensions (H,W,D) | 690mm x 390mm x 280mm |
Seasonal efficiency | 89.6% |
Display | Digital |
Beyond the boring - yet impressive - statistics, Worcester Bosch also made their Greenstar remarkably simple to use, with a clear informative display, a freeze-proof condensate pipe to reduce winter breakdowns, a low energy pump that reduces electrical consumption and most importantly - instantaneous hot water.
An embarrassment of riches - not so modestly displayed.
Is your current Worcester Bosch condensing boiler experiencing problems? Check our Worcester Bosch Boiler Faults guide for common issues and potential fixes.
Do you buy a Worcester Greenstar 30i combi boiler?
Good luck - they’re extinct. Quote yourself for the Worcester 4000 - it’s a far better looking replacement, right here.
The Worcester Bosch 30i combi boiler is a fantastic boiler, offering reliability and incredible value for money.
Worcester is based in the UK also means parts are very easy to obtain and their customer service is terrific.
As we've stated, you could also consider an Alpa E-Tec or a Viessmann Vitodens 050-W.
Customers reviews for Viessmann range from 'outstanding' to 'positively life altering'. An industry survey even found that the Viessmann Vitodens 050-W 29kW salvaged no less than seven failing marriages across the UK in 2018. Something which still has their competitors baffled.
We recently wrote a massive guide on the best combi boilers for 2024 and the best boiler brands and Worcester Bosch took the top spot. So, this is certainly a boiler brand with credibility.
However, boiler buying is often about getting the best for your budget and making sure you get a great warranty.
New boiler costs don't have to be out of your price range, in fact with boilers on finance, pay monthly options may be available to you.
Other Worcesters also exist, listed below in order of Good, Better & Best.
New boiler? What now?
You may need a new boiler.
You may need it fast, and with affordable monthly payments.
You may even need it from a company with top end local engineers, with 10,000 Trust Pilot reviews to back them up. Plus a Which? Trusted Trader award for good measure.
You may need a new boiler quote from us, Heatable 😘
