Image of Worcester Greenstar 18i system boiler 18kw
Worcester Bosch Boilers

Worcester Greenstar 18i system boiler 18kw

All prices are fully fitted and include VAT

*Please note that all prices are subject to survey


inc vat


/mo 24 months
(0% apr)

Boiler Specs

Warranty 7 year manufacturer's warranty
Boiler Type System
Efficiency 94%/A
Max Output 18kw
Flow Rate N/A
Dimensions W 400mm, D 330mm, H 710mm

Boiler Description

Excellent for medium sized homes with 1 bathroom.

The Worcester Greenstar 18i system boiler offers compact dimensions, light weight and A-rated efficiency. The 18i provides reliability through even the coldest months with the potential to save you money on annual heating bills.

Why Choose Us?

Next Day Installation

Next Day Installation

Subject to availability.

Free Wireless Programmable programmer

Free Wireless Programmable programmer

With every new combi boiler installation

What's included in your package?

In your package is everything you need to make your installation go as smoothly as possible.

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Free Celsius Aftercare

With our aftercare service we promise to keep your boiler in tip top shape. We will register the boiler warranty for you, deal with any boring paperwork and ensure you receive fast track priority for any warranty repairs. Our aftercare service also comes with discounted in-warranty boiler servicing and we will even remind you when your annual service is coming up! To see a full breakdown as well as terms and conditions please click here.

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Is the Worcester Greenstar 18i System Boiler 18kw still a good boiler for me?

This 18i Greenstar boiler has now been replaced by a new and improved boiler – the Worcester Bosch Greenstar 4000 18kw system boiler.


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