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Top-rated
See all
Biasi Riva NTC Temperature Sensor Thermistor Thermister BI1001117
(32)
96%
agree - Would recommend
£2.99 New
A+++
E
A
Worcester 87186643010 Electrode Set
(29)
100%
agree - Would recommend
£21.00 New
A+++
G
A+++
Glow-Worm 0020097214 Diverter 3 Way Valve 0020097214
(28)
100%
agree - Would recommend
£13.00 New
Vaillant 180944 Boiler Control Panel Cover Hinge - Beige
(26)
87%
agree - Would recommend
£12.51 New
Vaillant Boiler Turbomax VUW 126262 Micro Switch Diverter Valve 242e 282e
(23)
92%
agree - Would recommend
£20.00 New
Energy Rating A
🔍Baxi 720222801 Boiler Ignition Electrode
(20)
100%
agree - Would recommend
£13.49 New
£10.00 Used
A+++
G
A+++
Ariston Clas 24ff & 28ff 3 Bar Pressure Relief Safety Valve PRV 61312668
(19)
100%
agree - Would recommend
£6.06 New
10 X Vaillant 0020029604 Impeller Flow Meter From Aqua Sensor 194829 194819
(19)
93%
agree - Would recommend
£5.95 New
A+++
E
A
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Best selling
See all
Worcester 87161064420 Return Manifold Sub Assembly
(58)
£13.99 New
Energy Rating A+++
2 Port 22mm or 28mm Motorised Zone Valve *HEAD* Can Replace Honeywell V4043H1056
(5)
£19.98 New
£16.32 Used
A+++
E
A
Ideal 1m Flue Extension (Pack D) - 203129
(11)
£28.14 New
Worcester 87161064330 Flow Sensor Adaptor
(47)
£8.74 New
A+++
E
A+++
×5 Vaillant 303903 1m Flue Extension
(6)
£22.00 New
Energy Rating A
Vaillant ECOMAX ecoTEC Plus Pro Gasket Seal 0020038679 G10
(86)
£11.99 New
WORCESTER 24 CDi BF RSF 28 CDI RSF CHARGING LINK ASSEMBLY 87161051030
(6)
£55.00 New
£11.69 Used
A+++
D
A
Ideal Boiler Expansion Vessel (175551)
(21)
£30.00 New
£15.00 Used
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New to Refurbished on eBay
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Baxi Boiler Hydraulic Inlet Valve (12L) + AAV 5132454 5132455 248043
£51.99
A+++
E
A+++
Baxi Boiler Hydraulic Inlet Valve (12L) + AAV Service Kit 5132454 5132455 248043
£50.34
A+++
E
A+++
Baxi Boiler Hydraulic Inlet Valve (12L) + AAV 5132454 5132455 248043
£50.34
A+++
E
A+++
Baxi Boiler Hydraulic Inlet Valve (12L) + Automatic Air Vent AAV 5132454 5132455
£52.99
A+++
E
A+++
Baxi Boiler Hydraulic Inlet Valve (12L) + AAV Service Kit 5132454 5132455 248043
£51.99
A+++
E
A+++
Baxi Boiler Hydraulic Inlet Valve (12L) + Automatic Air Vent AAV 5132454 5132455
£51.99
A+++
E
A+++
Baxi Boiler Hydraulic Inlet Valve (12L) + AAV Service Kit 5132454 5132455 248043
£52.99
A+++
E
A+++
Shop by category
Water Heaters
Standard Water Heaters
Combi Boiler Water Heaters
Immersion Water Heaters
Tankless Water Heaters
Water Heater Accessories
Water Heater Parts
Sentinel X100 Central Heating Scale Inhibitor - 1L
Brand new
·
Sentinel
(56)
£12.49
Free postage
1,084 sold
5L 10KW Instant Hot Water Heater Gas Boiler Tankless LPG Propane Camping Shower
Brand new
£95.95
Free postage
Only 1 left.
10L Portable Tankless Gas Water Heater LPG Propane Boiler Outdoor Camping Shower
Brand new
£129.95
Free postage
138 watching
Trident Central Heating Pump 25/60-130 compatible with Grundfos pump replacement
6 YEAR UK warranty.Over 20,000 Sold in UK 24/h UK del
Brand new
£39.99
Free postage
3,977 sold
A+++
D
B
2500W Electric Immersion Water Heater Portable Suspension Hot Fast Boiler NEW
Brand new
·
Unbranded
£10.79
Free postage
1,160 sold
Vaillant Standard Horizontal Flue Kit Brand New 0020219517 Boiler Ecotec Genuine
Brand new
·
Vaillant
£67.50
£9.99 P&P
14 watching
UK Plug 3000W Heating Element Suspension Boiler Water Immersion Heater Bathroom
Brand new
·
Unbranded
£10.99
Free postage
130 sold
Baxi Main Multifit Standard Horizontal Flue 7222019
Brand new
·
Baxi
(3)
£67.50
(£67.50/Unit)
£9.99 P&P
40 sold
Sentinel X800 Fast Acting Cleaner 1 Litre Central Heating Liquids
Brand new
·
Sentinel
(45)
£4.88
£3.38 P&P
TESY Vertical Electric Hot water Cylinder 30L / 50L / 80L / 100L / 120L / 150L
Brand new
£24.99
to
£379.99
Free postage
74 sold
Energy Rating C
Honeywell Home V4043H 1056 - 2 Port Motorised Zone Valve 22mm V4043H1056 (272848
Brand new
·
Honeywell
(5)
£55.97
Free postage
1,081 sold
A+++
E
A
Central Heating Magnetic System Boiler Filter 22mm Valves Boiler-m8 Defender-2
Brand new
·
Boiler-m8
(50)
£39.97
(£39.97/Unit)
Free postage
3,594 sold
Magnetic Boiler Filter 22mm Inline for Central Heating inc Iso Valves TC-FILTER
Brand new
·
Corgi
(3)
£39.95
Free postage
651 sold
8L Tankless Gas Hot Water Heaters LPG Propane Instant Boiler Camping Van Shower
Brand new
£109.95
Free postage
87 watching
Portable Tankless Gas Water Heater LPG Propane Instant Boiler Outdoor Shower Kit
Brand new
£95.95
to
£129.95
Free postage
LOW-LOSS HEADER (HYDRAULIC BALANCER) 40kW - 1" (Heat pump power 13kW)
Brand new
·
Elterm
(4)
£175.00
Free postage
1,070 sold
Lid Spanner for ADEY MagnaClean Pro2, Professional 2 XP, Micro2 - 16 Teeth Key
Brand new
£10.99
Free postage
Brand new Ideal 1m Flue Extension (Pack D) - 203129
Brand new
·
Ideal
(11)
£29.99
Free postage
1.5kw Digital Instant Boiling Hot Water Kitchen Tap Tank 2.4L ✅
Brand new
£159.00
Was:
£299.95
was - £299.95
Free postage
173 sold
Energy Rating A
Altecnic Eres Potable Expansion Vessel 8, 12, 18, 24 Litre Sealed System Kit
Brand new
£7.23
to
£67.86
Was:
£81.43
was - £81.43
Free postage
2500W Electric Immersion Water Heater Portable Suspension Hot Fast Boiler 2.5kw
Brand new
£10.90
Free postage
75 sold
50/80/120L Electric Hot Water Heater Vertical Household Storage Tank Bathing UK
Brand new
·
Unbranded
£108.99
to
£130.99
Free postage
BAXI DUOTEC DUO TEC 24HE 28HE 33HE 40HE TEMPERATURE SENSOR THERMISTER 5114725
Brand new
·
Baxi
(67)
£3.18
Free postage
Est. delivery
Sun, Jul 6
810 sold
A+++
E
A+++
Worcester Boiler Flow Sensor Turbine Adaptor 87161064330 8716122264
Brand new
·
Worcester
(47)
£8.74
Free postage
830 sold
A+++
E
A+++
Synchron Motor UNIVERSAL Synchronous Motorised Valve FITS Honeywell & Drayton TC
Brand new
£10.95
Free postage
2,180 sold
Triton Showers T30I Instaflow Oversink Hand Wash Water Heater White - SPT303I
Brand new
·
Triton
(171)
£56.99
Free postage
51 sold
Fernox Express F4 400ml Central Heating Leak Sealer F4 comes with all 3 nozzles
Brand new
·
Fernox
(24)
£17.90
Free postage
81 sold
Adey Magnaclean Pro Professional 2 22mm Magnetic Filter Sludge Remover
Brand new
£75.00
£4.99 P&P
WORCESTER GREENSTAR JUNIOR 24i 28i & MK5 ELECTRODE KIT 87161163810 87181070870
Brand new
·
Worcester
£24.00
to
£224.89
(£224.89/Unit)
Free postage
A+++
G
A+++
8/16/18L Hot Water Heater Propane Gas Tankless Instant LPG Boiler Shower Kit NEW
Brand new
£77.99
to
£99.99
Free postage
A+++
E
A+++
Original Grundfos 15-60 & 15-50 Pump Head OEM (New)
Brand new
·
Grundfos
£67.49
Free postage
Energy Rating A+++
Baxi Combi 80E,105E 105HE Potterton Performa 28, System HE Main 30HE PCB 5112380
New (other)
·
Baxi
£54.99
(£54.99/Unit)
Free postage
117 sold
A+++
G
A+++
Vaillant ecoTEC Plus 635 System Boiler 35kW Natural Gas 0010036014 Brand New 🔥
Brand new
·
Vaillant
£1,849.00
or Best Offer
Free postage
Only 1 left.
Fernox 59288 TF1 Total & Compact Seal and ‘O’ Ring Kit
Brand new
·
Unbranded
£3.29
Free postage
3,609 sold
Adey Magnaclean Professional / Micro 2 Filter Top O Ring Seal Washer Service Kit
Brand new
£3.50
Free postage
3,638 sold
Energy Rating A+
Vaillant 0020132682 ecoTEC PLUS 824 831 837 Diverter Valve Brass NEW
Brand new
·
Vaillant
(9)
£60.00
£4.99 P&P
34 sold
360° Electric Heating Tap Kitchen Bathroom Fast Instant Hot Water Heater Faucet
Brand new
·
Unbranded
£15.59
or Best Offer
Free postage
347 sold
A+++
G
A+++
Baxi Duotec 24HE 28HE 33HE 40HE A 3 Way Diverter Valve Cartridge Kit 720003100
Brand new
·
Baxi
£13.60
Free postage
41 sold
A+++
E
A+++
IDEAL LOGIC PLUS COMBI 24 30 35 & LOGIC COMBI E24 E30 E35 BURNER KIT 175571
New (other)
·
Ideal
£51.99
(£51.99/Unit)
Free postage
70 sold
A+++
G
A+++
LPG Hot Water Heater Propane Gas Tankless Instant Boiler Shower Kit Portable
Brand new
£77.99
to
£99.99
Free postage
65 sold
A+++
E
A+++
Home Immersion Water Heater Portable Bucket Water Heaters Bath Bathroom 2500W
Brand new
·
Unbranded
£10.90
Free postage
267 sold
18" Dual Safety Rod Thermostat for Immersion Heaters, TS230P,18 inch -Resettable
Brand new
·
Unbranded
£8.50
Free postage
93 sold
0020116882 Vaillant Time switch 150 24 Hour Analogue Timer Replacement
Brand new
·
Unbranded
£30.00
£4.99 P&P
Stainless steel PLATE HEAT EXCHANGER NORDIC TEC 25-130 kW Ba-12 Serie 3/4
Brand new
·
TEC
£44.16
to
£199.99
(£199.99/Unit)
£9.50 P&P
Energy Rating A+++
Worcester Condensfit Telescopic Horizontal Flue Kit 100mm 7716191082
Brand new
·
Worcester
(11)
£80.00
£5.99 P&P
Timeguard TS900N Water Heater Time Switch Immersion 24Hr Timer Control
Brand new
·
Timeguard
(51)
£19.99
(£19.99/Unit)
Free postage
1,066 sold
Honeywell 272887/U 28mm Motorised 2 Port Zone Valve
Brand new
·
Honeywell
(2)
£42.32
Free postage
10 watching
A+++
D
A
Vaillant 22mm Boiler Filter Protection Kit 0020278309
Brand new
·
Vaillant
(6)
£160.00
£9.99 P&P
4 watching
Ideal 175562 Gas Valve - Honeywell VK4115V1352 - GENUINE - NEW OTHER PLEASE READ
New (other)
·
Ideal
(12)
£49.99
Free postage
VAILLANT ECOTEC VUW PRO 24 & PRO 28 BOILER AUTO AIR VENT 104521
Brand new
·
Vaillant
(7)
£7.95
Free postage
187 sold
A+++
D
A
Motorised Zone Valve Actuator Head 2 PORT 22mm 28mm Replaces Honeywell V4043H TC
Brand new
£25.95
Free postage
2,587 sold
ADEY MagnaClean Lid Spanner - Pro, Professional, Micro - Older Style - 18 Teeth
Brand new
£10.99
Free postage
IDEAL LOGIC 24 30 35 COMBI IGNITION UNIT SPARK GENERATOR 175593 ( NEW )
Brand new
·
Unbranded
£21.65
Free postage
927 sold
Replacement Central Heating Pump Head UPS 15-50/60 Base
Brand new
£39.97
(£39.97/Unit)
Free postage
2,589 sold
Energy Rating B
Vaillant Ecotec Expansion Vessel 181051 Brand New (Original) ALL MODELS
Brand new
£44.97
Free postage
603 sold
Electric Hand Wash Unit 3kw Instant Hot Water Over Sink Heater - Newlec NLMHW3KW
Brand new
·
Newlec
(5)
£63.99
(£63.99/Unit)
Free postage
149 sold
Brand new Vaillant 303903 1m Flue Extension BNIB
Brand new
·
Vaillant
(6)
£29.99
Free postage
244 sold
Energy Rating A
WORCESTER GREENSTAR JUNIOR 24i 28i & MK5 ELECTRODE KIT 87161163810 87181070870
Brand new
·
Unbranded
£24.80
Free postage
792 sold
WORCESTER GREENSTAR 25 27 29 30 35 37 40 42 CDi MAIN HEAT EXCHANGER 87377017930
New (other)
·
Worcester
£157.90
(£157.90/Unit)
Free postage
59 sold
A+++
G
A+++
BAXI COMBI 80E,80 ECO,105E,105HE DIVERTER & WATER VALVE 248061 7224344 GENUINE
New (other)
·
Baxi
£64.99
(£64.99/Unit)
Free postage
70 sold
A+++
G
A+++
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