The Worcester Greenstar 12i System Boiler Review

When it comes to reliability, performance and efficiency Worcester’s range of system boilers are leading the field.

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A system boiler stores hot water, usually via storage tank in the loft, ready for when it’s needed. This is different to how combi boilers work, for example, which is by heating water on demand. The advantage of hot water storage is that there is no loss of pressure when more than one hot water faucet is being used at a time. Find out more about the Greenstar 12i by reading below or by contacting us through our enquiry form. See the 15i system boiler page for the larger sized model.

Features and Benefits

  • Quiet & Efficient Greenstar Model
  • No Risk Of Frozen Pipes
  • Over 15 Million Greenstar Boilers Already Fitted
  • Hot Water On Demand
  • No Hot & Cold Water Storage Tanks Needed
  • Ultra-compact Space Saving Boiler
  • Lifetime Guarantee with our HFB Cover Plan

How It Works

The 12i is the smallest in the Worcester’s range of system boilers. Despite this, it packs a serious punch and has no trouble heating you 2-5 bedroom house. Please consult with one of our experienced and friendly heating engineers to learn more about heat load calculations and finding the right sized boiler for your property.

As testimony to the performance of these Greenstar System boiler, Which? has awarded them Best Buy status for 4 years running. That may be why they’re one of the most popular boilers we install. (Keep in mind that Hassle Free Boilers is also a Which? Trusted Trader, so you can be sure you’re in the best hands.)

What You Need to Know

The 12i comes with a 10 year guarantee on the primary heat exchanger and a 5 year standard guarantee on the boiler. There are a wide range of digital controls with which this boiler is compatible, making programming your central heating and hot water a breeze.

The 12i is also considerably more compact than many other boilers on the market making it an ideal choice if you’re looking for it to be installed in a tight space, or simply to fit neatly into your kitchen without taking up too much room. And, of course, this boiler is also very quiet.

The 12i is in the highest possible efficiency bracket for domestic boilers, coming in with a SAP rating of 90.1%. Some other points to note are that the 12i is registered with the Energy Saving Trust, and is fully compatible with Greenskies solar panels. The added advantage of installing this super-efficient boiler is that the carbon footprint of your home will be dramatically reduced.