Your search for "central heating"
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| Provides long term protection of domestic central heating systems against internal corrosion, limescale formation and bacterial contamination. Prevent |
  | £11.99 |
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| Designed for the contract market. Independent Settings for Hot Water & Central HeatingIntegrated Components for Trouble-Free Installation7 Day, 5 / 2 |
| £76.80 |
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| 10-way / 15A. For central heating control wiring. |
| £3.59 |
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| 1Ltr. General purpose treatment for total protection against scale and corrosion. For use in all types of indirect central heating systems, including |
| £14.99 |
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| 1Ltr. Apply to existing systems for the removal of sludge and deposits. Iron oxide is broken down and dispersed through flushing. Removes SludgeBreaks |
| £14.99 |
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| Quick and effective neutral cleanser. Removes debris, sludge and scale, restoring efficiency. Non-hazardous. Can be Used with Powerflush MachinesSuita |
| £17.48 |
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| Provides long term protection of domestic central heating systems against internal corrosion and limescale formation. Prevents corrosion of all metals |
| £25.94 |
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| Quick and effective neutral cleanser. Removes debris, sludge and scale, restoring efficiency. Superconcentrate is applied via radiator, using applicat |
| £21.88 |
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| 500ml. Disperses sludge, limescale and system debris. Restores circulation and improves heating efficiency. 500ml treats 100 litres. |
| £8.99 |
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| 500ml. Protects against corrosion and limescale formation to maintain system efficiency. Suitable for mixed metal systems including aluminium. 500ml t |
| £8.99 |
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| 310ml. Internal leak sealer for small inaccessible leaks and weeping joints which reduce system pressure. Effective within 1-24 hours. 1 tube treats 1 |
| £13.99 |
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| 500ml. Internal leak sealer for small, inaccessible leaks and weeping joints which reduce system pressure. Effective within 1-24 hours. 500ml treats 1 |
| £8.99 |
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| 500ml. Reduces boiler noise, eliminates kettling and restores heat transfer efficiency. Suitable for all boiler types and compatible with all No Nonse |
| £8.99 |
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| Effective frost protection with BuildCert standard scale and corrosion control. Suitable for all central heating types including those containing alum |
| £19.99 |
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| 310ml. Protects against corrosion and limescale formation to maintain system efficiency. Suitable for mixed metal systems including aluminium. 1 tube |
| £13.99 |
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| 310ml. Disperses sludge, limescale and system debris. Restores circulation and improves heating efficiency. 1 tube treats 100 litres. |
| £13.99 |
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| 310ml. Reduces boiler noise, eliminates kettling and restores heat transfer efficiency. Suitable for all boiler types. Compatible with all No Nonsense |
| £13.99 |
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| Bi-metallic sensor. Surface mounted. Suitable for Most Domestic SystemsFixing Strap Included2 Year Manufacturer's GuaranteeEnergy Saving Trust Recomme |
| £9.51 |
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| Electro-mechanical sensor. Surface mounted. Complies with EN 60730. Conforms to 89/336/EEC and 73/23/EEC. Suitable for All Domestic SystemsFixing Stra |
| £12.35 |
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| Independent timing. 5-wire installation. Override facility. Holiday mode. Automatic BST/GMT time change. Boost function. EN 60730-2-7. 24 Hour, 5 / 2 |
| £52.75 |
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| 2-wire installation. Override facility. Holiday mode. Automatic BST/GMT time change. Boost control. EN 60730-2-7. Digital Display3 On/Off Periods per |
| £46.45 |
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| Electro-mechanical sensing element. EN 60730-2-9. |
| £12.71 |
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| Common timing. 5-wire installation. Override facility. Boost function. EN 60730-2-7. 24 Hour Programmable2 On/Off Periods per DaySuitable for Gravity- |
| £48.85 |
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| 3-wire installation. Override facility. Boost control. BS EN 60730-2-7:1995. Digital Display3 On/Off Periods per Day4 Preset Programmes7 Day Programma |
| £26.55 |
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| Electronic sensing element. 2-wire installation. Override facility. Digital Display4 On / Off Periods per Day5 / 2 Day Programmable2 Year Manufacturer |
| £23.25 |
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| Separate timing. 3-wire installation. Override facility. Boost function. BS60730-2-7, EN50081-1 & EN50082-1. 7 Day Programmable26 Preset ProgrammesDig |
| £31.99 |
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| Common timing. 3-wire installation. Override facility. BS EN 60730-2-7:1992 and 8182 / 8319, BS EN 50081-1 & BS EN 50082-1:1992. 24 Hour Programmable2 |
| £29.99 |
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| Bi-metallic sensing element. 3-wire installation. EN 60730. 2 Year Manufacturer's GuaranteeEnergy Saving Trust Approved * 2 Year Manufacturer's Guaran |
| £7.48 |
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| 1Ltr. A unique, life-long system treatment for the elimination of limescale and boiler noise. Reduces fuel usage. Safe to use in all types of indirect |
| £14.99 |
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| 1-wire installation. Override facility. EN 60630-2-7. 2 On/Off Periods per Day2 Preset Programmes24 Hour ProgrammableEnergy Saving Trust Recommended * |
| £49.85 |
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| Common timing. 5-wire installation. Override facility. Boost function. EN 60730-2-7. 24 Hour Programmable2 On/Off Periods per DaySuitable for Gravity- |
| £51.88 |
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| 22mm. Durable valves to control water flow. |
| £3.05 |
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| 22mm. Durable valves to control water flow. |
| £3.55 |
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| 4Ltr. Gives long-term protection of domestic central heating systems against internal corrosion and limescale formation. Prevents corrosion of all met |
| £22.99 |
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| Simplifies the wiring of central heating installations using Sundial C, S or Y Plan control systems and programmers or timeswitches. Conforms to 89/33 |
| £6.28 |
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| Bi-metallic sensor. Surface mounted. Control for boilers and wet central heating. Complies with EN 60730. Conforms to 89/336/EEC and 73/23/EEC. Suitab |
| £20.34 |
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| Common timing. 2-wire installation. CE marked. 24 Hour ProgrammableDigital Display1 or 2 On/Off Periods per DaySuitable for Gravity-Fed & Fully Pumped |
| £77.98 |
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| Dual Diagram sensing element. 3-wire installation. Building regulations compliant, CE Marked. 3 Wire InstallationEnergy Saving Trust Approved * 3 Wire |
| £19.99 |
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| Electronic sensing element. Wireless.1 WirelessFrost Protection * Wireless * Frost Protection |
| £81.95 |
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| Electronic sensing element. Wireless. Override facility. Digital Display5 On/Off Periods per Day5 / 2 Day Programmable2 Year Manufacturer's GuaranteeF |
| £59.99 |
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| Reusable kit that helps feed chemical treatment into central heating systems faster. Fits " BSP taper and BSP union coupling. Use with central heating |
| £2.93 |
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| 4-wire installation. Override facility. Automatic BST/GMT time change. Made in accordance with EN 60730. 24 hour programmable. 24 Hour Programmable1 P |
| £49.95 |
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| 3 wire installation. Override facility. Automatic BST/GMT time change. EN 60730. Digital Display3 On/Off Periods per Day1 Preset Programme24 Hour Prog |
| £40.28 |
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| Bi-metallic sensor. Surface mounted. Positive on/off setting. Approved to EN 60730. Suitable for All SystemsFixing Strap IncludedDouble InsulatedEnerg |
| £13.28 |
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| 4-wire installation. Override facility. Automatic BST/GMT time change. Made in accordance with EN 60730. 7 day programmable. 7 Day Programmable1 Prese |
| £58.95 |
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| 4-wire installation. Override facility. Automatic BST/GMT time change. Made in accordance with EN 60730. 5 / 2 day programmable. 5 / 2 Day Programmabl |
| £51.95 |
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| Electronic sensing element. 2 or 3-wire installation. Made in accordance with EN 60730. 2 or 3 Wire Installation * 2 or 3 Wire Installation |
| £12.98 |
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| A replacement for most common motorised valves. Approved to EN 60730. Easy-to-Fit ConnectionsConforms to 89/336/EEC& 73/23/EEC * Easy-to-Fit Connectio |
| £13.25 |
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| Separate timing. 4-wire installation. Override facility. Holiday mode. Boost function. EN 60730. 24 Hour or 5 / 2 Day programmable. 1 Preset Programme |
| £52.68 |
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| 4-wire installation. Override facility. Automatic BST/GMT time change. Made in accordance with EN 60730. 24 hour programmable. 24 Hour Programmable1 P |
| £44.64 |
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| 3-wire installation. Override facility. Automatic BST/GMT time change. EN 60730. Digital Display3 On/Off Periods per Day1 Preset Programme24 Hour Prog |
| £48.93 |
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| 5Ltr. With corrosion and limescale inhibitors. |
| £22.98 |
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| 3-wire installation. Override facility. Boost control. BS EN 60730-2-7:1995. 2 Year Manufacturer's Guarantee * 2 Year Manufacturer's Guarantee |
| £26.45 |
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| Separate timing. Override facility. Holiday mode. Automatic BST/GMT time change. Boost function. EN 60730. 24 Hour, 5 / 2 Day or 7 Day ProgrammableDig |
| £43.88 |
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| Electronic sensing element. 2-wire installation. Override facility. EN 60730. Digital Display2 On / Off Periods per Day24 Hour Programmable2 Wire Inst |
| £38.18 |
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| Electronic sensing element. 2 wire installation. EN 60730. Digital Display2 Wire InstallationFrost Protection * Digital Display * 2 Wire Installation |
| £29.63 |
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| Gas bellows sensing element. 2-wire installation. EN 60730. 2-Wire InstallationEnergy Saving Trust Approved * 2-Wire Installation * Energy Saving Trus |
| £10.99 |
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| Separate timing. 3-wire installation. Override facility. Holiday mode. Automatic BST/GMT time change. Boost function. EN60730-1:2001 and EN 60730-2-7: |
| £129.95 |
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| 3-wire installation. Override facility. Boost control. BS EN 60730-2-7:1995. 2 Year Manufacturer's GuaranteeHeating Extension Timer * 2 Year Manufactu |
| £26.45 |
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| Electronic sensing element. Wireless. Override facility. Holiday mode. Automatic BST/GMT time change. Digital Display6 On/Off Periods per Day1 Preset |
| £109.99 |
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| Separate timing. 2-wire installation. Override facility. Holiday mode. Automatic BST/GMT time change. Boost function. Building regulations compliant, |
| £67.58 |
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| 3 wire installation. Override facility. Holiday mode. Boost control. EN 60730. Digital Display3 On/Off Periods per Day1 Preset Programme24 Hour or 5/2 |
| £41.28 |
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| Common timing. Override facility. Boost function. EN 60730. 24 Hour Programmable2 On/Off Periods per DaySuitable for Gravity Fed & Pumped SystemsEnerg |
| £45.51 |
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| Override facility. Holiday mode. Automatic BST/GMT time change. Boost control. EN 60730. Digital Display3 On/Off Periods per Day24 Hour, 5/2 Day or 7 |
| £45.30 |
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| Electronic sensing element. 2 wire installation. Override facility. EN 60730. Digital Display2 Wire Installation * Digital Display * 2 Wire Installati |
| £35.99 |
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| 3 wire installation. Override facility. Holiday mode. Boost control. EN 60730. Digital Display3 On/Off Periods per Day1 Preset Programme24 Hour or 5/2 |
| £46.58 |
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| Override facility. Boost control. EN 60730. 2 On/Off Periods per Day24 Hour ProgrammableEnergy Saving Trust Recommended * 2 On/Off Periods per Day * 2 |
| £31.76 |
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| Bi-metallic sensor. Surface mounted. Suitable for All Domestic SystemsFixing Strap IncludedEnergy Saving Trust Recommended * Suitable for All Domestic |
| £11.11 |
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| Electronic sensing element. 2 wire installation. Override facility. Automatic BST/GMT time change. EN60730-1:1995 and EN 60730-2-9:2002. Digital Displ |
| £63.52 |
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| Electronic sensing element. Wireless. Override facility. Holiday mode. EN 60730. Digital Display3 On/Off Periods per Day24 Hour, 5 / 2 Day or 7 Day Pr |
| £121.75 |
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| Electronic sensing element. 2 wire installation. Override facility. Holiday mode. EN 60730. Digital DisplayTouch ScreenFrost ProtectionEnergy Saving T |
| £63.52 |
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| Electronic sensing element. 3 wire installation. Override facility. Holiday mode. Automatic BST/GMT time change. Digital Display6 On/Off Periods per D |
| £51.31 |
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| Electronic sensing element. 2 wire installation. Override facility. Holiday mode. EN 60730. Digital DisplayTouch ScreenFrost ProtectionEnergy Saving T |
| £105.87 |
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| 500ml. Reusable kit that helps feed chemical treatment into central heating systems faster. Fits " BSP taper and union coupling. Use with No Nonsense |
| £2.99 |
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| Electronic sensing element. 2 wire installation. Override facility. Digital Display4 On/Off Periods per Day2 Year Manufacturer's GuaranteeEnergy Savin |
| £18.99 |
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| Electronic sensing element. 3 wire installation. EN 60730. 3-Wire InstallationEnergy Saving Trust Approved * 3-Wire Installation * Energy Saving Trust |
| £11.74 |
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| Electronic Room Thermostat. |
| £12.71 |
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| Great value electronic programmer, with independent settings for hot water and central heating. Easy-fit. Supplied with thermostats, motorised valve a |
| £65.43 |
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| Used throughout domestic heating systems for sealing small inaccessible leaks. Compatible with all systems metals. Easily applied via radiator with th |
| £23.97 |
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| Used throughout domestic heating systems for sealing small, inaccessible leaks. Does not block air vents and pumps. |
| £13.28 |
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| 2-zone valve pack. A complete heating controls system that incorporates both low voltage wiring and plug-in connections to minimise errors and make wi |
| £204.34 |
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| Mid-position pack. A complete heating controls system that incorporates both low voltage wiring and plug-in connections to minimise errors and make wi |
| £133.40 |
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| This accessible guide gives you all you need to know to carry out essential plumbing and heating jobs at home - and also tells you where to draw the l |
| £8.99 |
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| 22mm compression connection. 5-wire installation. Interchangeable with other makes. Conforms to EN 60730. 1m Cable SuppliedMax. 95C Flow TemperatureSp |
| £69.88 |
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| 22mm compression connection. 5-wire installation. Interchangeable with other makes. Conforms to EN 60730. 1m Cable SuppliedMax. 95C Flow TemperatureSp |
| £51.95 |
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| Electronic sensing element. 2-wire installation. Override facility. BS EN 60730-2-9:1995. Digital Display3 On/Off Periods per Day7 Day Programmable2 Y |
| £30.90 |
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| 2-wire installation. Override facility. Boost control. EN 60730-1: 91+ A1, 11 and EN 60730-2-7:91+A11, A12. 1 On/Off Period per Day1 Preset Programme2 |
| £59.18 |
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| 1Ltr. Flushes out flux and installation debris from new, indirect central heating systems and those up to 6 months old. An essential remedy against sc |
| £14.99 |
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| 275ml. Cleans corrosion debris without risk of leaks. Helps restore circulation. No neutralisation needed. Suitable for all metals. Apply using a caul |
| £24.49 |
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| 275ml. General purpose treatment for total protection against scale and corrosion. For use in all types of indirect central heating systems, including |
| £24.49 |
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| 275ml. A unique, life-long system treatment for the elimination of limescale and boiler noise. Safe to use in all types of indirect central heating sy |
| £24.49 |
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| Simple, quality design from this top brand makes this a reliable retrofit. Suitable for indirect open-vented or sealed domestic heating and hot water |
| £41.10 |
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| Suitable for hot water, heating systems, cooling and air conditioning systems. 1" BSP connection. IP44 rated. Kitemarked. 3 Speed Settings2 Year Manuf |
| £39.98 |
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| Helps reduce boiler noise. Improves heat transfer efficiency. Non-toxic. Suitable for All Boiler TypesPrevents Bacterial Contamination10 Year Manufact |
| £18.02 |
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| Helps reduce boiler noise. Improves heat transfer efficiency. Non-toxic. Suitable for All Boiler TypesPrevents Bacterial Contamination10 Year Manufact |
| £22.82 |
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| Suitable for hot water, heating systems, cooling and air conditioning systems. 3 Variable Speed SettingsVariable 6m Max Delivery Head"B" Energy Rated2 |
| £47.97 |
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| Suitable for hot water, heating systems, cooling and air conditioning systems. 1" BSP connection. IP44 rated. Kitemarked. 3 Speed Settings5m Delivery |
| £73.99 |
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| Suitable for hot water, heating systems, cooling and air conditioning systems. 1" BSP connection. IP44 rated. Kitemarked. 3 Speed Settings6m Delivery |
| £82.98 |
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| Suitable for hot water, heating systems, cooling and air conditioning systems. 1" BSP connection. IP44 rated. Kitemarked. 3 Speed Settings5m Delivery |
| £29.43 |
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| 22mm. A simple means of ensuring adequate flow through boilers which require a bypass. Easy InstallationHigh Flow CapabilityReduces System NoiseIdeal |
| £32.32 |