Greenstar 4000 System | Standard Flue | Move Boiler Position

The Greenstar 4000 is perfect for small to medium sized homes with one bathroom, it features a modern new design, an easy to use full colour text display and it’s quiet too. The Greenstar 4000 has a wide power range to meet all of your heating and hot water needs, whilst doing so efficiently.


  • 4000 System Boiler

12 Year Warranty

12 year parts & labour warranty on this boiler when you buy your new boiler from us.

Finance Available

Spread the cost of this boiler replacement with a competitive finance deal .

Fast Installation

Order today and we’ll be there in no time to replace your inefficient old boiler.

Competitive Pricing

This new boiler is recommended by Eazy Heat and offers great features at a competitive price. 

Here's What's Included in Your Boiler Package

Your Chosen Boiler

It’s not just your boiler that’s included in your price. It’s everything else too including full Gas Safe Installation.

12 Years Parts & Labour Warranty

There’s more peace of mind here with our industry leading extended 12 Year warranty which is provided through our partnership with Safeguard Homecare Ltd. We’ll send you details of exactly how our warranties work upon your request.

System Filter & Clean*

We’ll include a new filter with your installation which will keep your system nice and clean for the rest of its life. We’ll also carry out a comprehensive clean and flush of your system before we start.

Note* Excludes Boilers on a Budget Option

Smart Timer and Controls*

We'll include suitable controls to ensure your new system complies with the latest efficiency regulations.

Note* Excludes Boilers on a Budget Option

Pipework Installation & Upgrade

We know that a lot of boiler replacement jobs don’t go fantastically well all of the time and a lot of issues are caused by incorrect pipe sizing on your existing system. Don’t worry about this though as all our boiler replacement prices are fixed and final which means extra peace of mind for you.

Less Hassle For You

Replacing your old gas boiler is one of the most important jobs you’ll ever do around your home. That’s why we go out of our way to ensure that we minimise the time it takes to replace your old boiler and we do our absolute best to have you warm and toasty again without delay.

Heat Only and System Boilers

Just to let you know we base our package pricing on the 18kw model for heat only and system boiler installations. This should suffice on the vast majority of boiler replacements but you may find we install a different kw rating based on system design considerations.

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4000 System Boiler

Greenstar 4000 System | Standard Flue | Move Boiler Position