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Glow Worm Ultracom2 sxi

Glow-worm’s Ultracom2 sxi system boiler is SEDBUK A rated for high energy efficiency, and is both reliable and affordable with average prices starting from around £530 excluding VAT and installation costs.

The Ultracom2 sxi is a complete unvented system boiler with great features like an in-built expansion vessel and pump, and a unique design that enables front access for parts and servicing which frees up more space.

Available in three heating outputs, this high efficiency boiler is powerful enough to cope with increased hot water demands, without installing a cold water tank in the loft; making it an ideal replacement for an old non-condensing system boiler.

Designed in a simple but attractive shape, this system boiler will fit easily with any interior. With a choice of external central heating and hot water controls as well as a plug-in digital control, for your convenience and economy, the Ultracom2 sxi is a user friendly appliance that gives you every opportunity to reduce your fuel bills by having no more than the level of heat you need.

Glow Worm Ultracom2 sxi Overview


ModelTypeDimensionsMaximum Flow RateOutputEfficiency RatingTypical Price
Ultracom2 12sxiSystemH – 726 mm
W – 450 mm
D – 334 mm
N/A12 kWA 90% and above£716.84
Ultracom2 18sxiSystemH – 726 mm
W – 450 mm
D – 334 mm
N/A18 kWA 90% and above£788.84
Ultracom2 30sxiSystemH – 726 mm
W – 450 mm
D – 334 mm
N/A30 kWA 90% and above£857.24
Key Features & Benefits
SEDBUK Band AHigh Energy Efficiency
Stainless steel heat exchanger.Longer boiler lifespan
NOx Class 5 ratingEnvironmental friendly
Inbuilt vessel, tank and filling loopEasy fit, space saving
Choice of high efficiency controls and accessories including the new Glow worm Climapro2.Energy efficiency User friendly
Front panel access – no need to remove side panels.Easy fit, space saving
LPG compatible without conversion kit (not applicable for the 12KW model)LPG compatibility
Ultra quiet operationUser Comfort
Simple, easy servicing and maintenanceLonger boiler lifespan
Standard 2 year parts & labour warrantyPeace of Mind

What we think of the Glow Worm Ultracxom2 sxi

Glow-worm’s Ultracom2 sxi system boilers are manufactured with tried and tested components; making them reliable, easy to install and operate. These boilers are mostly chosen for those who have a traditional boiler and heating system, but want to replace it with a more efficient and modern system, yet still need the ability to generate lots of hot water for the property. They come in three sizes which allows three different heat outputs: 12kW, 18kW and 30kW.

Properties with more than one bathroom tend to need the power and versatility that these sealed central heating systems use, because they make use of a separate tank to store the hot water. This gives them an edge of the popular Combi boiler.

The range is geared so that whereas the 12kW is ideal for smaller properties, the 30kW unit is powerful enough to cope with the demands of a large house. What’s more, the 18kW and 30kW units can be converted to run on LPG. For such powerful boilers they can still be sited in small spaces and they don’t need much space at the sides for installation.

Getting a Competitive Boiler Quote

Before you purchase this boiler, we highly recommend that you get a few quotes first in order to make a good comparison. Ask a national installer for a quote and compare it with one from your local boiler installer.

Also make sure your engineer is Gas Safe Registered.

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