Energy Savings Calculator

Glow-worm’s latest tool has been designed to accurately calculate how much money you could save on your energy bills by changing the way you heat your home. Try our simple Energy Savings Calculator now and find out how much you could be saving immediately.

Find an Installer

Get a boiler installation quote from your local Glow-worm installer to make sure you're in the best hands. It's essential to get your boiler installed by an expert to ensure it's done correctly and safely, get in touch and our installers will help you find the perfect boiler for your home and your budget.

About Glow-worm

Welcome to Glow-worm. We've been creating reliable heating solutions for the past 75 years. We're the pioneers of condensing boilers which is now fitted as standard. Today, our heating solutions cover not just domestic gas boilers, but renewable technologies, hot water cylinders and domestic controls.


Our service doesn't finish with a sale, we are always here for you to offer expert advice. We'll support you from registering your new product to booking an engineer visit.

User manuals for Glow-worm products

If you're looking for user manuals for Glow-worm products, please click here to view all of our user manuals.