Central Heating Accessories

Find high-quality central heating accessories at Toolstation, including filters, valves, thermostats, vents, filling loops, cleaning products, immersion heater covers and more. Shop from trusted brands like Tesla, Grundfos, Sentinel and Adey, and find products to help safeguard and maintain your central heating system.

Types of Central Heating Accessories



Installing a filter on your boiler will help prevent blockages caused by debris in the system. Magnetic filters are available for wet central heating systems, suitable for horizontal and vertical pipework.

Thermostats are commonly used with an immersion heater boiler to prevent the system from overheating, ensuring the safety of your home. Auto air vents bleed excess air from the central heating system, reducing noise, corrosion and maintenance costs.

Discover more central heating accessories when you shop our full range of products here.
PipeSnug PipeSnug / FlueSnug 100mm Black
( 12 )

Product code: 23885

FlueSnug 100mm Black

£13.98

ex. VAT £11.65 Each

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Sentinel Sentinel Sentinel / Sentinel InstaCheck Test Kit
Save £67

Product code: 82764

Sentinel InstaCheck Test Kit

£101.69 was £169.48

ex. VAT £84.74 Each

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Thermostat 18"
( 90 )

Product code: 37562

Thermostat 18"

£13.48

ex. VAT £11.23 Each

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Tesla Tesla / Tesla Titanium Immersion Heater & Stat Incoloy Pocket 27 inch - 2 1/4" Boss
( 15 )

£44.08

ex. VAT £36.73 Each

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Aladdin Aladdin / Aladdin Auto Airvent Vent Only
( 53 )

£11.28

ex. VAT £9.40 Each

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PipeSnug PipeSnug PipeSnug / FlueSnug 100mm White
( 12 )

Product code: 94308

FlueSnug 100mm White

£15.98

ex. VAT £13.32 Each

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Calmag Calmag / Boiler Acid Neutraliser Spare Cartridge
( 15 )

£22.48

ex. VAT £18.73 Each

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Tesla Tesla / Tesla Long Life Incoloy Immersion Heater & Resettable Thermostat 27"
( 103 )

£29.38

ex. VAT £24.48 Each

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Tesla Tesla / Tesla Copper Immersion Heater & Resettable Thermostat 11"
( 11 )

£21.38

ex. VAT £17.82 Each

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Tee Type Braided Filling Loop
( 18 )

£13.08

ex. VAT £10.90 Each

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Adey Magnaclean Twin Tech Filter 22mm

£210.68

ex. VAT £175.57 Each

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ADEY ADEY / Adey Magnaclean Professional 2 (Pro 2) Filter 22mm
( 10 )

£124.98

ex. VAT £104.15 Each

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Reliance Valves Reliance Valves / Reliance Valves Automatic Air Vent - Push Fit 15mm
( 4 )

£8.08

ex. VAT £6.73 Each

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Tower Tower / Tower Air Separator 22mm
( 19 )

Product code: 75473

Tower Air Separator 22mm

£21.38

ex. VAT £17.82 Each

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Sentinel Sentinel Sentinel / Sentinel Eliminator Vortex250 Ultra-Compact Magnetic Filter Protection Pack 22mm Filter Only
35% Off
( 2 )

£70.19 was £116.98

ex. VAT £58.49 Each

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Super Universal Thermocouple 900mm
( 46 )

£8.38

ex. VAT £6.98 Each

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Fernox Fernox / Fernox F3 Central Heating Cleaner Express 400ml
( 11 )

£26.48

ex. VAT £22.07 Each

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Honeywell Home Honeywell Home / Honeywell Home Angled Automatic Bypass Valve 22mm
( 5 )

£52.68

ex. VAT £43.90 Each

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Unbranded / Brass Radiator Key
( 169 )

Product code: 59405

Brass Radiator Key

£0.98

ex. VAT £0.82 Each

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Air Vent 3mm (1/8")
( 15 )

Product code: 23370

Air Vent 3mm (1/8")

£1.78

ex. VAT £1.48 Each

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Air Vent 1/2"
( 18 )

Product code: 69952

Air Vent 1/2"

£1.98

ex. VAT £1.65 Each

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Aladdin Aladdin Aladdin / Aladdin Auto Airvent Micro Vent
20% Off
( 5 )

£10.00 was £12.78

ex. VAT £8.33 Each

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2 Hour Electronic Boost Timer
( 34 )

£22.98

ex. VAT £19.15 Each

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Tesla Tesla / Tesla Copper Immersion Heater & Resettable Thermostat 27"
( 15 )

£25.66

ex. VAT £21.38 Each

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