The Worcester Greenstar 27i system boiler packs impressive efficiency into a compact design, with 92% seasonal heating efficiency that could save you up to 20% on bills compared to older models. You'll pay between £1,055 and £1,413 for the unit, plus installation costs of £1,867 to £2,555. It comes with a generous 7-year warranty (extendable to 10 years) and handles 8-10 radiators comfortably. Let's explore what makes this A-rated boiler a popular choice for modern homes.
Key Takeaways
- The Worcester Greenstar 27i system boiler costs between £1,055 to £1,413, with total installation costs ranging from £1,867 to £2,555.
- With 92% efficiency and ErP A-rating, this 27kW boiler can power 8-10 radiators and save up to 20% on heating bills.
- The boiler comes with a 7-year warranty, extendable to 10 years, and requires annual servicing to maintain coverage.
- Compact dimensions of 690mm x 390mm x 280mm and lightweight design at 27.3kg make installation straightforward in various spaces.
- Compatible with solar heating systems and unvented cylinders, though requires a separate hot water cylinder for multiple hot water demands.
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Worcester Greenstar 27i System Boiler Overview
The Worcester Greenstar 27i system boiler stands out as one of the most popular choices for UK homes, and it's easy to see why.
With its compact dimensions of 690mm x 390mm x 280mm, you'll find it fits neatly into a standard kitchen cupboard – no more sacrificing valuable storage space!
What makes this boiler particularly appealing is its versatility and user-friendly features.
You'll appreciate these key benefits:
- Compatible with solar water heating systems and unvented cylinders
- Lightweight at just 27.3kg, making installation straightforward
- Comes with up to 10 years guarantee options for peace of mind
The clear operational display and adjustable heating controls put you in charge of your home's comfort.
Plus, with colour-coded wiring connectors and pre-plumbing features, your installer will thank you for choosing such an installation-friendly unit.
Worcester Greenstar 27i System Boiler Performance and Efficiency
When it comes to raw performance, you'll find the Worcester Greenstar 27i system boiler packs quite a punch with its impressive 27 kW output. This powerhouse can comfortably handle 8-10 radiators, making it perfect for the average family home.
You're looking at some serious efficiency too – it's ErP A-rated and boasts a 92% seasonal space heating efficiency. That means you could save up to 20% on your heating bills compared to your old boiler!
| Feature | Specification | Benefit |
|---|---|---|
| Output | 27 kW | Heats 8-10 radiators |
| Efficiency | ErP A-rated | Lower bills |
| Size | 690x390x280mm | Space-saving |
| Weight | 27.3 kg | Easy installation |
| Emissions | 32 mg/kWh NOx | Eco-friendly |
The boiler's compact size won't eat up your valuable space, and its built-in frost protection means you'll stay cosy even during those chilly winter mornings.
Worcester Greenstar 27i System Boiler Pros and Cons
Making an informed decision about the Worcester Greenstar 27i system boiler requires weighing its notable advantages against a few drawbacks.
You'll appreciate its space-saving design that fits neatly into a standard kitchen cupboard, along with its impressive 92% efficiency rating that'll help reduce your energy bills.
Notable benefits include:
- Compatible with solar panels and smart controls for enhanced efficiency
- Low-energy pump that keeps electrical usage down
- Extensive warranty options up to 10 years
However, you'll need to take into account that it's not all sunshine and rainbows.
The initial cost is higher than some competitors, and you'll need a separate hot water cylinder. If your household demands lots of hot water simultaneously, you might want to explore other options.
Plus, the installation can be a bit complex, which could add to your overall costs.
How Does The Worcester Greenstar 27i System Boiler Compare To Similar Models From Other Manufacturers?
Comparing Worcester's Greenstar 27i against its main rivals reveals some interesting differences worth considering before you make your purchase.
The Greenstar 27i holds its own with a solid 92% efficiency rating, though it's slightly behind the 94% achieved by the Viessmann 100-W, Ideal Logic+, and Vaillant ecoTEC plus.
When it comes to size, it's the most compact option at 690mm x 390mm x 280mm, making it perfect if you're tight on space.
Warranty coverage is where you'll notice some variation. While the Greenstar 27i offers up to 7 years, both Viessmann and Vaillant extend this to 10 years.
That said, the Worcester brand brings strong compatibility with solar panels and cylinders, plus it's got the backing of countless heating engineers who regularly recommend it for its reliability.
For a deeper understanding of alternative options, our extensive collection of Viessmann boiler guides provides detailed comparisons and specifications.
How Much Does A Worcester Greenstar 27i System Boiler Cost?
Looking to budget for a Worcester Greenstar 27i system boiler?
You'll find the boiler-only price typically ranges from £1,055 to £1,413, with an average cost of around £1,200. These prices can vary depending on your supplier and when you're buying.
For a full installation, you're looking at a total cost between £1,867 and £2,555, including parts, labour, and VAT.
The final price depends on several factors:
- Your property size and heating demands
- Whether you need system modifications
- Installation location and accessibility
The good news? This boiler's 92% efficiency rating means you could cut your heating bills significantly.
It's also around 30% cheaper to run than older models, so while the upfront cost might seem steep, you'll see savings on your energy bills over time.
Worcester Greenstar 27i System Boiler Warranty and Service Support
Beyond the upfront costs, the Worcester Greenstar 27i system boiler comes with impressive warranty coverage to protect your investment.
You'll get a standard 7-year warranty, which can be extended up to 10 years when you opt for installation by an accredited engineer and include a magnetic filter.
Want even more protection? If you're installing a Lifestyle model with a system filter through an accredited installer, you can secure a 12-year guarantee.
The warranty covers all parts and labour, with zero call-out fees.
You'll have access to technical support almost year-round, with experts available seven days a week.
They're there when you need them – from early morning weekday calls to Saturday afternoon emergencies.
Just remember to schedule your annual service to keep your warranty valid and your boiler running smoothly.
Final Verdict
While the Worcester Greenstar 27i system boiler comes with a premium price tag, its blend of reliability, efficiency, and versatility makes it a smart investment for medium to large homes.
With its A-rated efficiency and low NOx emissions, you'll be doing your wallet and the environment a favour.
The unit's compact design is a real space-saver, fitting neatly into a standard kitchen cupboard.
You'll appreciate these standout features:
- High performance 27kW output perfect for homes with 8-10 radiators
- User-friendly controls that won't leave you scratching your head
- Compatibility with solar thermal systems for future-proof heating
At £2000-£2367 installed, it's not the cheapest option, but the 7-8 year warranty and potential energy savings make it worth considering.
Plus, its pre-wired design means less hassle during installation.
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