Glow-worm Energy 18S (ErP) System Boiler and Flue Kit

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The Energy 18S system boiler is a high efficiency and high quality boiler that is designed using automotive grade aluminium. The Energy 18S system boiler’s heat exchanger is high quality which makes it light to install. 

Energy system boiler has modern high impact design which will suit your customer’s homes and comes with a bright easy to read LCD display, a smart timeless case design and super quiet running.

Energy just requires simple water flush cleaning for the heat exchanger which means lower costs and no special cleaning tools. The patented 4 sided cooling reduces the stress on the heat exchanger which means longer term reliability for your customers. Energy is supported by UK wide spare parts availability. 

Built in the UK, ErP A rated

Energy system boiler is built in the UK and is ErP A rated. It comes with a great range of outputs, available in: 12S, 15S, 18S, 25S, 30S. 

Standard 2 year warranty, upgraded to 5 years when the installer registers the install with Glow-worm club Energy.

Features and Benefits

  • Wide product range – caters for every heat output demand

  • Aluminium heat exchanger – designed to last longer 

  • High Efficiency modulating Grundfos pump lowers running costs as the pump adapts to actual heating and hot water demand

  • Modern bright LCD displays excellent clarity of boiler information wherever it is installed making it easy to change and confirm settings

  • Option of horizontal or rear flue

Manufacturer Product Number
Not Applicable
Manufacturers Warranty
5 Years (Subject to Manufacturers T&C's)
Warranty Terms and Conditions
When the installer registers the install with Glow-worm club Energy
Installation PDF File
Manufacturers brochure PDF File
Boiler Type
System Boiler
Kit Contains
Boiler & Flue
Fuel Used
Natural Gas
Boiler CH Output (Kw)
Boiler CH Output (BTU)
Boiler Height
Boiler Width
Energy Efficiency
ErP Heating Rating
A Rated for Heating
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1 x Glow-Worm Energy 18S (ErP) System Boiler Only   £645.83 (£775.00 Incl. Tax)
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£704.17 Excl. Tax £845.00 Incl. Tax