DIY accessories

  90.3% A The Greenstar CDi Conventional boiler series is part of a market-leading range of energy-saving condensing gas-fired boilers from Worcester. They can cut heating and hot water bills by between 15-20% - and they're up to 30% cheaper to run than an older boiler. Greenstar condensing boilers deliver this energy-saving performance by recycling exhaust gases to extract and re-use latent heat - a highly efficient use of energy which also significantly reduces carbon dioxide in the atmosph... less info

  90.3% A The Greenstar CDi Conventional boiler series is part of a market-leading range of energy-saving condensing gas-fired boilers from Worcester. They can cut heating and hot water bills by be... more info

4Ltr. Gives long-term protection of domestic central heating systems against internal corrosion and limescale formation. Prevents corrosion of all metals and is suitable for use on all types of boilers, radiators and pipework systems. Non-toxic. Screwfix less info

4Ltr. Gives long-term protection of domestic central heating systems against internal corrosion and limescale formation. Prevents corrosion of all metals and is suitable for use on all types of boi... more info

The CM920 series of Wireless Programmable Thermostats is designed to provide wireless time and temperature control to heating or cooling systems in domestic and light commercial buildings. The slim, ultra modern design complements the large LCD screen with the Line of Text (LoT(™)) display and one function button to ensure simplified programming and operation for all users. The CM920 series can be used to control the heating circuit in a Sundial S or Y Plan and is particularly well suited to ... less info

The CM920 series of Wireless Programmable Thermostats is designed to provide wireless time and temperature control to heating or cooling systems in domestic and light commercial buildings. The slim... more info

90.1% A The Greenstar i Junior boiler series is part of a market-leading range of energy-saving condensing gas-fired boilers from Worcester. They can cut heating and hot water bills by between 15-20% - and they're up to 30% cheaper to run than an older boiler. Greenstar condensing boilers deliver this energy-saving performance by recycling exhaust gases to extract and re-use latent heat - a highly efficient use of energy which also significantly reduces carbon dioxide in the atmosphere. SEDBU... less info

90.1% A The Greenstar i Junior boiler series is part of a market-leading range of energy-saving condensing gas-fired boilers from Worcester. They can cut heating and hot water bills by between 15-2... more info

Allows weather compensation to operate. Enhances boiler efficiency. Screwfix less info

Allows weather compensation to operate. Enhances boiler efficiency. Screwfix

High efficiency condensing boiler with advanced, pre-mixed combustion and electronics. SEDBUK A RatedSystem Boiler OnlySelf DiagnosticRange Rateable OutputHeating Only Boiler * SEDBUK A Rated * System Boiler Only * Self Diagnostic * Range Rateable Output * Heating Only Boiler Screwfix less info

High efficiency condensing boiler with advanced, pre-mixed combustion and electronics. SEDBUK A RatedSystem Boiler OnlySelf DiagnosticRange Rateable OutputHeating Only Boiler * SEDBUK A Rated * Sys... more info

High efficiency condensing boiler with advanced, pre-mixed combustion and electronics. Refined component selection. Sedbuk Band AOpen Vent or System BoilerSelf DiagnosticSealed System Compatible with Additional Equipment * Sedbuk Band A * Open Vent or System Boiler * Self Diagnostic * Sealed System Compatible with Additional Equipment Screwfix less info

High efficiency condensing boiler with advanced, pre-mixed combustion and electronics. Refined component selection. Sedbuk Band AOpen Vent or System BoilerSelf DiagnosticSealed System Compatible wi... more info

High efficiency condensing boiler with advanced, pre-mixed combustion. Sealed system compatible with additional equipment. Sedbuk Band A RatedOpen Vent or System BoilerSelf DiagnosticAdvanced Electronics * Sedbuk Band A Rated * Open Vent or System Boiler * Self Diagnostic * Advanced Electronics Screwfix less info

High efficiency condensing boiler with advanced, pre-mixed combustion. Sealed system compatible with additional equipment. Sedbuk Band A RatedOpen Vent or System BoilerSelf DiagnosticAdvanced Elect... more info

5Ltr. Effective frost protection. Also controls corrosion, scale, boiler noise and hydrogen formation in all types of indirect heating systems, including those containing aluminium components. Screwfix less info

5Ltr. Effective frost protection. Also controls corrosion, scale, boiler noise and hydrogen formation in all types of indirect heating systems, including those containing aluminium components. Scre... more info

90.1% A The Greenstar CDi boiler series is part of a market-leading range of energy-saving condensing gas-fired boilers from Worcester. They can cut heating and hot water bills by between 15-20% - and they're up to 30% cheaper to run than an older boiler. Greenstar condensing boilers deliver this energy-saving performance by recycling exhaust gases to extract and re-use latent heat - a highly efficient use of energy which also significantly reduces carbon dioxide in the atmosphere. SEDBUK* A-... less info

90.1% A The Greenstar CDi boiler series is part of a market-leading range of energy-saving condensing gas-fired boilers from Worcester. They can cut heating and hot water bills by between 15-20% - ... more info

The simple, affordable and reliable SEDBUK B combi range: no nonsense heating from Glow-worm. The new Glow-worm Betacom c range of high efficiency combi boilers is simple, affordable and reliable. This stylishly designed, hassle-free appliance is quick and easy to install and operate. It is one of the smallest SEDBUK B combis on the market and is the ideal heating solution for small to medium sized homes, providing a simple and reliable supply of heating and hot water. The Betacom c is availa... less info

The simple, affordable and reliable SEDBUK B combi range: no nonsense heating from Glow-worm. The new Glow-worm Betacom c range of high efficiency combi boilers is simple, affordable and reliable. ... more info

90.1% A The Greenstar CDi boiler series is part of a market-leading range of energy-saving condensing gas-fired boilers from Worcester. They can cut heating and hot water bills by between 15-20% - and they're up to 30% cheaper to run than an older boiler. Greenstar condensing boilers deliver this energy-saving performance by recycling exhaust gases to extract and re-use latent heat - a highly efficient use of energy which also significantly reduces carbon dioxide in the atmosphere. SEDBUK* A-... less info

90.1% A The Greenstar CDi boiler series is part of a market-leading range of energy-saving condensing gas-fired boilers from Worcester. They can cut heating and hot water bills by between 15-20% - ... more info

90% A The Greenstar CDi System boiler is part of a market-leading range of energy-saving condensing gas-fired boilers from Worcester. It can cut heating and hot water bills by between 15-20% - and they're up to 30% cheaper to run than an older boiler. Greenstar condensing boilers deliver this energy-saving performance by recycling exhaust gases to extract and re-use latent heat - a highly efficient use of energy which also significantly reduces carbon dioxide in the atmosphere. SEDBUK* A-rate... less info

90% A The Greenstar CDi System boiler is part of a market-leading range of energy-saving condensing gas-fired boilers from Worcester. It can cut heating and hot water bills by between 15-20% - and ... more info

90.1% A The Greenstar CDi boiler series is part of a market-leading range of energy-saving condensing gas-fired boilers from Worcester. They can cut heating and hot water bills by between 15-20% - and they're up to 30% cheaper to run than an older boiler. Greenstar condensing boilers deliver this energy-saving performance by recycling exhaust gases to extract and re-use latent heat - a highly efficient use of energy which also significantly reduces carbon dioxide in the atmosphere. SEDBUK* A-... less info

90.1% A The Greenstar CDi boiler series is part of a market-leading range of energy-saving condensing gas-fired boilers from Worcester. They can cut heating and hot water bills by between 15-20% - ... more info

  90.4% A The Greenstar Highflow 550CDi boiler is a market leading energy-saving floor standing combi. It can deliver 25 litres of domestic hot water per minute, making the appliance ideally suited for use in large sized family homes, incorporating up to three bathrooms. Greenstar condensing boilers deliver this energy-saving performance by recycling exhaust gases to extract and re-use latent heat - a highly efficient use of energy which also significantly reduces carbon dioxide in the atmosp... less info

  90.4% A The Greenstar Highflow 550CDi boiler is a market leading energy-saving floor standing combi. It can deliver 25 litres of domestic hot water per minute, making the appliance ideally suited... more info

Compact and flexible range of condensing combis - the only high efficiency boiler in the UK with a direct rear flue, cupboard fit** and now with NEW glide down plug in timer. To replace an old boiler or install a new one with the of minimum fuss, you need one that will fit just about anywhere. That's why Glow-worm created the Flexicom a high-efficiency condensing boiler that's so flexible, compact and simple to install it makes your life easy. The NEW glide down timer provides simple control ... less info

Compact and flexible range of condensing combis - the only high efficiency boiler in the UK with a direct rear flue, cupboard fit** and now with NEW glide down plug in timer. To replace an old boil... more info

Advanced range of high efficiency condensing combination boilers with NEW inbuilt digital programmer and stainless steel heat exchanger. Based on 4th generation technology the Ultracom cxi is built with tried and tested components providing you with proven reliability, exceptional efficiency and ease of installation including being able to install and commission the appliance without removing the case. The stylish inbuilt back-lit digital controls provide 7 day or 24-hour control of the centr... less info

Advanced range of high efficiency condensing combination boilers with NEW inbuilt digital programmer and stainless steel heat exchanger. Based on 4th generation technology the Ultracom cxi is built... more info

  90.1% A The Greenstar Ri boiler series is part of a market-leading range of energy-saving condensing gas-fired boilers from Worcester. They can cut heating and hot water bills by between 15-20% - and they're up to 30% cheaper to run than an older boiler. Greenstar condensing boilers deliver this energy-saving performance by recycling exhaust gases to extract and re-use latent heat - a highly efficient use of energy which also significantly reduces carbon dioxide in the atmosphere. SEDBUK* A... less info

  90.1% A The Greenstar Ri boiler series is part of a market-leading range of energy-saving condensing gas-fired boilers from Worcester. They can cut heating and hot water bills by between 15-20% -... more info

Range 20 meter line of sight between transmitter and receiver. Daily digital programmable room thermostat Large, easy to read display. Battery powered. Volt free contacts (24-250v) Ideal for combi boilers. RF or fixed installation (hard wired) models available. Large, control dial. Advanced and override functions.     less info

Range 20 meter line of sight between transmitter and receiver. Daily digital programmable room thermostat Large, easy to read display. Battery powered. Volt free contacts (24-250v) Ideal for combi ... more info

Compact and flexible range of condensing combis - the only high efficiency boiler in the UK with a direct rear flue, cupboard fit** and now with NEW glide down plug in timer. To replace an old boiler or install a new one with the of minimum fuss, you need one that will fit just about anywhere. That's why Glow-worm created the Flexicom a high-efficiency condensing boiler that's so flexible, compact and simple to install it makes your life easy. The NEW glide down timer provides simple control ... less info

Compact and flexible range of condensing combis - the only high efficiency boiler in the UK with a direct rear flue, cupboard fit** and now with NEW glide down plug in timer. To replace an old boil... more info