The Energy range is Glow-worm’s new flagship ERP A-rated boiler specifically designed for private domestic properties.

Built-in the UK at Glow-worm’s award-winning factory in Belper. The Energy system boiler is a high-quality boiler that’s designed to lower your running costs. Its high-efficiency modulating Grundfos pump adapts to your actual heating and hot water demand, reducing your energy bills.

The Energy system boiler’s size also makes it the perfect fit to install virtually anywhere – including kitchen cupboards.

It also comes with a rear flue giving you flexibility.  The energy-sealed system boiler range is suitable for homes with high hot water demands and can be installed with Glow-worm’s range of cylinders for hot water storage.  Glow-Worm Energy range only requires simple water flush cleaning for the heat exchanger requiring no special cleaning tools

Modern bright LCD display
A-rated efficiency
Compact size allows it to be installed in most places – including kitchen cupboards
High-efficiency Grundfos pump that adapts to the actual heating and hot water demand lowering your running costs
High-quality automotive-grade aluminum heat exchanger
Top and Rear flue options are available
Ultra-quiet operation
FREE 2-year warranty with the option to increase 
Performance & Dimensions
Casing dimensions: Height-700mm, Width-390mm & Depth-280mm
Central Heating Output (kW): Min-4.5 & Max-12.3
Minimum operating pressure (bar): 0.3