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Greenstar 8000 System
Greenstar 8000 System - Image 2

Greenstar 8000 System

Our premium system boiler

If you’re after the very best system boiler, built to handle high hot water demand, and looks as good as it runs, this is the model we recommend.

The Greenstar 8000 System is Worcester Bosch’s top-of-the-range system boiler, designed for larger homes with multiple bathrooms and higher heating needs.

It combines outstanding performance with a sleek, modern design, and comes with Worcester Bosch’s most advanced features. With a 12-year guarantee, it offers complete peace of mind and long-lasting reliability.
What's Included in your boiler install
✅ Certified Gas Safe Installation
✅ System flush with inhibitor protection
✅ Carbon monoxide alarm installed
✅ Magnetic filter fitted
✅ Warranty registered for 12 years
Fully Installed
from

£4,250.00

inc vat
Rated 5/5 - 90+ reviews
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Here4Heat
Not sure which boiler is best for you?
Most people only buy a boiler once every 10–15 years, so it’s no wonder it feels complicated. That’s why we do free surveys!
Book a free survey today and we’ll match you with the right boiler
Here4Heat
Not sure which boiler is best for you?
Most people only buy a boiler once every 10–15 years, so it’s no wonder it feels complicated. That’s why we do free surveys!
Book a free survey today
(We'll match you with the right boiler!)
Worcester Bosch Specialists
Only the UK’s most trusted boilers
Speedy Booking System
Pick a date that works for you.
Local & Reliable
We fit boilers across West Sussex 

How it works

Book online in minutes
Choose 'book free home survey' for your boiler survey
Select a date & time
Book a slot that works for you.
We’ll confirm your booking
And your Here4Heat engineer will arrive to chat about the best boiler options for your home.
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Rated excellent by homeowners across the south

Why choose the Greenstar 8000 System

The Greenstar 8000 System is Worcester Bosch’s premium system boiler, designed for larger homes with higher heating and hot water demands. It combines cutting-edge efficiency with a sleek, modern design, offering the very best in performance and reliability.

Ideal for homes with 4+ bedrooms and multiple bathrooms, it delivers strong and dependable heating while supplying plenty of hot water through a separate hot water cylinder. Quiet in operation and stylish in appearance, it’s the perfect choice for households that want the top of the range.
✅ Premium design: Stylish finish to complement modern interiors
✅ Outstanding performance: Ideal for larger homes with multiple bathrooms
✅ Efficient running: Built with advanced technology for energy savings
✅ Quiet operation: Delivers power without disturbing your home
✅ 12-year guarantee: Full cover for parts and labour

What’s included?

With Here4Heat, everything your boiler needs is included as standard.
Up to 12 Years Warranty
Get between 5-12 years manufactures warranty on selected models
Pipework Flushed Through
Clears out dirt and sludge before your new boiler starts
Waste Disposal
We take away your old boiler and waste
Gas Safe Installation
Certified and registered for safety
Carbon Monoxide Alarm
(worth £30)
Alerts you if carbon monoxide is detected
Standard Controls
(worth £130)
Easy-to-use thermostat included
Corrosion Inhibitor Added
(worth £20)
Protects pipes and radiators for years to come
Magnetic Filter
(worth £80)
Keeps your system clean and running longer
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Not sure if the 8000 is right for you?

Here’s a simple guide for system boilers we fit every day:
For smaller homes
Greenstar i System compact
Best for small homes with 1 bathroom
For families
Greenstar 4000
Better for medium homes (2–3 bedrooms, 1–2 bathrooms)
Premium
Greenstar 8000
The Premium option for any size home

Why choose Here4Heat?

For your new system boiler
Engineer-Recommended
Boilers Chosen by Experts
Selected by heating engineers for quality and reliability, not by salespeople.
Trusted Local Team
Same Team All the Way
Deal directly with our friendly team from quote through to installation.
Gas Safe Approved
Certified Gas Safe Engineers 
Every engineer is Gas Safe registered, giving you safe, professional work.
Fixed Quotes
Clear Pricing You Can Trust
Upfront quotes with no extras added later and no hidden surprises.
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Rated 5★ by local customers

Areas we cover

We provide expert installation services throughout West Sussex and the surrounding areas.

If your location isn't listed, please don't hesitate to contact us. We'll do our best to accommodate you.
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Help!
Still feeling overwhelmed?
That’s exactly what our free boiler survey is for!
With a free survey, we’ll check your home and make sure you end up with the boiler that fits your needs.
Book a Free Boiler Survey Today
Help!
Still feeling overwhelmed?
That’s exactly what our free boiler survey is for!
With a free survey, we’ll check your home and make sure you end up with the boiler that fits your needs.
Book a Free Boiler Survey Today

Frequently asked questions

Prices vary depending on the model and your home’s needs. During your free boiler survey, we’ll recommend the right Worcester Bosch boiler and provide a clear, fixed-price quote.

If your boiler is over 10–15 years old, keeps breaking down, or is no longer efficient, it may be more cost-effective to replace it with a modern combi boiler.

Most combi boiler installations are completed in 1–2 days. We’ll give you a clear timescale before starting work.

There may be a short period during installation, but our engineers aim to keep disruption to a minimum and get your heating back on as quickly as possible.

Yes, all our Worcester Bosch combi boilers come with long manufacturer guarantees (up to 12 years) for peace of mind.

Absolutely! You can book your free boiler survey online in minutes, and our team will confirm a date that suits you.

Ready to get your new boiler sorted?

Click below to arrange your free home survey, we’ll visit at a time that suits you and handle everything from there.
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With over 30 years of experience working in heating, plumbing and renewable energy for the local community, Here4Heat are experts in their field.

Areas we cover: Chichester, Bognor Regis, Worthing, Hove, Havant, Fishbourne, Littlehampton, Arundel, Portsmouth, Southsea, Midhurst, Fontwell, Tangmere, Witterings.

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About Us

Contact Us

  • Worthing: 01903 250139
    Chichester: 01243 774447
  • Monday to Friday: 8am - 5pm
Here 4 Heat Ltd, registered address Unit 16, Northbrook Business Park, Worthing, West Sussex, BN14 8PQ, company number 08655130 is an Introducer Appointed Representative of TradeHelp. Our firm reference number is 996003. TradeHelp is a trading style of Tradehelp Ltd, Marchwiel Centre, Bryn Lane, Wrexham Ind Est, LL13 9UT, registered in England (03712438), authorised and regulated by the Financial Conduct Authority (firm reference number 697812). TradeHelp are a credit broker, not a lender, and offer loans from a small panel of carefully selected lenders. TradeHelp do not offer financial advice and do not charge you for credit broking services. All loans are subject to status.
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