Water Boilers for sale

New listing24v Grey Push Button Gas Valve V8600C1053 V8600C1020 V8600C1145 *NEW*
New (other) · Honeywell
£182.68
or Best Offer
£4.26 P&P
BAXI COMBI 80E,80 ECO,105E,105HE DIVERTER & WATER VALVE 248061 7224344 GENUINE
New (other) · Baxi
£64.99
(£64.99/Unit)
Free postage
Est. delivery Tue, Aug 5
76 sold
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
Est. delivery Tue, Aug 5
4,019 sold
POTTERTON SUPRIMA 30L 40L 50L 60L 70L 80L 100L PCB 5111603 5107117
New (other)
£49.99 to £110.99
(£49.99/Unit)
Free postage
Est. delivery Tue, Aug 5
New listingViessmann 300 WB3B Circuit Board Complete With Pressure Gauge Working
Pre-owned · Viessmann
£89.08
or Best Offer
£3.38 P&P
Energy Rating A
TESY Vertical Electric Hot water Cylinder 30L / 50L / 80L / 100L / 120L / 150L
Brand new · Tesy
(2)
£24.99 to £289.99
Free postage
Est. delivery Mon, Aug 4
55 sold
Energy Rating C
Vaillant Ecotec Plus 612 System Boiler
Brand new · Vaillant
£414.68
or Best Offer
£24.00 P&P
12 watching
Baxi Main Multifit Standard Horizontal Flue 7222019
Brand new · Baxi
(3)
£67.50
(£67.50/Unit)
£9.99 P&P
92 sold
New listingVaillant PCB 0010028086 GENUINE Part BRAND NEW IN BOX SEALED!
Brand new · Vaillant
(2)
£89.08
or Best Offer
£2.94 P&P
Adey Magnaclean Pro Professional 2 22mm Magnetic Filter Sludge Remover
Brand new
£75.00
£4.99 P&P
33 sold
Vaillant Standard Horizontal Flue Kit Brand New 0020219517 Boiler Ecotec Genuine
Brand new · Vaillant
£67.50
£9.99 P&P
60 sold
Honeywell Home V4043H 1056 - 2 Port Motorised Zone Valve 22mm V4043H1056 (272848
Brand new · Honeywell
(7)
£55.97
Free postage
1,141 sold
New listingGrant Vortex Eco 15/21 Lower Baffle Set
Pre-owned · Grant
£42.28
or Best Offer
£5.64 P&P
Vaillant Ecotec Plus 824 831 837 & Pro 24 28 PCB 0020132764 ( 1 Year Warranty )
New (other) · Vaillant
(18)
£41.99
(£41.99/Unit)
Free postage
Est. delivery Tue, Aug 5
710 sold
DIVERTER VALVE FOR BAXI COMBI 105E, HE, 80E & MAIN COMBI 24, 30HE 248061 7224344
New (other) · Baxi
£69.99
(£69.99/Unit)
Free postage
Est. delivery Tue, Aug 5
83 sold
Worcester Greenstar 24i & 28i Junior Return-Unit Manifold 87161064420 Compatible
Brand new · Worcester
(59)
£84.99
Free postage
Est. delivery Tue, Aug 5
244 sold
Fernox F1 & F3 Twin Pack Central Heating Protector and Cleaner, 500ml, Each
Brand new
£14.52
or Best Offer
Free postage
Magnetic Boiler Filter 22mm Inline for Central Heating inc Iso Valves TC-FILTER
Brand new · Corgi
(3)
£39.95
Free postage
683 sold
IDEAL LOGIC COMBI & PLUS 24 30 35 SYSTEM/HEAT 12 15 18 24 30 GENUINE FAN 175569
Brand new · Ideal
(7)
£109.99
(£109.99/Unit)
or Best Offer
Free postage
Est. delivery Tue, Aug 5
VAILLANT ECOTEC PRO 24 28 (2012 MODEL) CIRCUIT BOARD PCB 0020108264
Excellent - Refurbished · Vaillant
(9)
£57.00
Free postage
Est. delivery Tue, Aug 5
532 sold
Refurbished on eBay
Motorised 2 Port Zone Valve 22mm Central Heating Valve
Brand new · Evolve
£31.99
Free postage
Energy Rating A+++
Honeywell 28mm Two Port Zone Valve 272887/U
Brand new · Honeywell
£31.88
or Best Offer
£3.38 P&P
5 watching
Brand new Vaillant 303903 1m Flue Extension BNIB
Brand new · Vaillant
(6)
£29.99
Free postage
Est. delivery Tue, Aug 5
278 sold
Energy Rating A
Adey Magnaclean Professional / Micro 2 Filter Top O Ring Seal Washer Service Kit
Brand new
£3.50
Free postage
3,684 sold
Energy Rating A+
Baxi Motor Cartridge 7216534 248733 5132452 710188301 7656807 720003100
Brand new · Baxi
£26.60
Free postage
Est. delivery Tue, Aug 5
334 sold
Energy Rating A+++
16L Portable Instant Gas Hot Water Heater LPG Camp Shower Boiler Caravan Horse
Brand new
£103.99
or Best Offer
Free postage
125 watching
WORCESTER GREENSTAR ERP 25I & 30I BOILER SMALL FILLING KEY 87161045910
Brand new · Worcester
£3.30
Free postage
Est. delivery Tue, Aug 5
289 sold
Tesy Electric Hot Water Cylinder 80 Litre Unvented, 2000w, Wall Mounted
Brand new · Tesy
(4)
£199.99
Free postage
Est. delivery Tue, Aug 5
394 sold
87161063540 WORCESTER GREENSTAR COMBI 25 29 30 31 & 34 35 37 38 40 42 CDI PUMP
New (other) · Worcester
(7)
£80.99
(£80.99/Unit)
Free postage
Est. delivery Tue, Aug 5
236 sold
VAILLANT ECOTEC PRO 28 VUW GAS VALVE 0020146732
Pre-owned · Vaillant
£54.99
(£54.99/Unit)
Free postage
Est. delivery Tue, Aug 5
34 sold
Vaillant Ecotec Pro 24 Ecotec Pro 28 PCB 0020052093 0020132764 0020107811
New (other) · Vaillant
(3)
£38.99
(£38.99/Unit)
Free postage
Est. delivery Tue, Aug 5
64 sold
IDEAL ISAR HE24 HE30 HE35 & ICOS HE12 HE15 HE18 HE24 BOILER PCB 174486 173534
New (other) · Ideal
£60.00
Free postage
Est. delivery Mon, Aug 4
199 sold
Energy Rating A++
Travel Heater Element Mini Boiler Hot Water Coffee Immersion 500W 220V Adapter
Brand new · Unbranded
£15.48
Free postage
227 sold
Axiom 16 Amp Mains Electro Mechanical Immersion / General Purpose Timer - IMT24H
Brand new
(24)
£15.00
Free postage
35 sold
Central Heating Magnetic System Boiler Filter 22mm Valves Boiler-m8 Defender-2
Brand new · ‎Boiler-m8
(50)
£39.97
(£39.97/Unit)
Free postage
Est. delivery Mon, Aug 4
3,613 sold
Ideal Logic Combi & Logic Plus Combi 24 30 35 Boiler Fan- MPN 175569
New (other) · Ideal
£69.99
(£69.99/Unit)
Free postage
Portable Electric Immersion Heater Boiler Spiral Tube Water Heating Element
Brand new · Unbranded
£9.96
or Best Offer
Free postage
6 watching
WORCESTER 24 CDi RSF OF BF, 28 CDi RSF & 35CDi II RSF DIVERTER VALVE 87161567460
New (other) · Worcester
(40)
£42.99
Free postage
Est. delivery Tue, Aug 5
141 sold
MAIN ECO COMPACT SYSTEM 15 18 & COMBI 25 30 BOILER PCB 7688421
Excellent - Refurbished · Main
£66.00 to £96.00
Free postage
Est. delivery Tue, Aug 5
52 sold
Refurbished on eBay
Energy Rating A+++
VAILLANT ecoTEC Pro 24 28 Plus 612 615 618 624 PUMP 3 WIRE 178983 59866553
New (other) · Vaillant
(13)
£42.55
(£42.55/Unit)
Free postage
Est. delivery Tue, Aug 5
111 sold
BAXI DUOTEC DUO TEC 24HE 28HE 33HE 40HE TEMPERATURE SENSOR THERMISTER 5114725
Brand new · Baxi
(67)
£3.18
Free postage
Est. delivery Tue, Aug 5
830 sold
Worcester Boiler Flow Sensor Turbine Adaptor 87161064330 8716122264
Brand new · Worcester
(47)
£8.74
Free postage
Est. delivery Tue, Aug 5
844 sold
New listingIDEAL ESPIRIT MAIN HEAT EXCHANGER KIT 177566 175571 175896 Genuine
Brand new · Ideal
(2)
£177.47
(£177.47/Unit)
or Best Offer
£5.88 P&P
0 bids
6d 23h
New listingWorcester 24i 28i Junior RSF Combi Printed Circuit Board PCB 87483004840 New
New (other) · Worcester
(22)
£59.99
(£59.99/Unit)
Free postage
Est. delivery Tue, Aug 5
Worcester Condensfit Telescopic Horizontal Flue Kit 100mm 7716191082
Brand new · Worcester
(11)
£80.00
£5.99 P&P
17 sold
Vaillant Boiler PCB (2012) 0010028086 0020116983 Type 3
Excellent - Refurbished · Vaillant
£83.13
Free postage
Est. delivery Tue, Aug 5
380 sold
Refurbished on eBay
Vaillant Diverter Valve 0020020015
Brand new · Vaillant
£42.28
£2.94 P&P
3 watching
Energy Rating A+++
Vaillant EcoTEC Plus 824 831 837 937 PCB (From 2012)0020254533, 0010028086 New*
Brand new · Vaillant
(2)
£89.99
£4.99 P&P
8 watching
Energy Rating A+++
Ideal 203129 Flue Extension Kit 1m 60/100 Pack D
Brand new · Ideal
(12)
£31.00
Free postage
133 sold
VAILLANT ECOTEC PLUS 824 831 837 937 PRO 24 28 EXPANSION VESSEL 181051 & 178985
Brand new · Unbranded
£54.47
(£54.47/Unit)
Free postage
Est. delivery Tue, Aug 5
5,176 sold
VAILLANT ECOTEC PLUS DIVERTER VALVE 0020132682
Brand new · Vaillant
(9)
£83.88
£3.71 P&P
Backer Backermatic BMST11 Immersion Heater Thermostat 11" with Reset - BMST11
Brand new
(4)
£15.96
Free postage
VAILLANT ECOTEC PRO 24 28 DIVERTER VALVE 0020020015
Brand new · Unbranded
£34.00
Free postage
Est. delivery Tue, Aug 5
791 sold
SPIROTECH SpiroVent RV2 22mm Deaerator UA022W d1
New (other)
(2)
£79.99
or Best Offer
Free postage
Energy Rating A
Worcester Bosch Plume Management Kit 7716191086
Brand new · Worcester
£58.00
Free postage
Baxi Duotec 24 28 33 40 Combi ErP Diverter Valve Actuator Motor 7216534
Brand new · Baxi
(12)
£10.72
Free postage
Est. delivery Tue, Aug 5
112 sold
Brand new IDEAL LOGIC PLUS COMBI C24 C30 & C35 BOILER GAS VALVE KIT 179032 -
Brand new · Ideal
(1)
£64.99
Free postage
Est. delivery Mon, Aug 4
86 sold
Baxi Duo Tec 24 28 33 40 Diverter Valve Motor & CARTRIDGE 720003100 & 248733
Brand new · Baxi
£26.95
Free postage
1,185 sold
ALPHA INTEC X24 28 C26 30 34 GS 30 40 PCB 1.030267 WAS 3.022790 12-MONTH WARRANT
New (other) · Alpha
£75.00
(£75.00/Unit)
Free postage
Est. delivery Tue, Aug 5
18L LPG Propane Gas Tankless Instant Hot Water Heater Boiler With Shower Kit
Brand new
£99.99
or Best Offer
Free postage
77 sold

Water Boilers

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137,919 results

New listing24v Grey Push Button Gas Valve V8600C1053 V8600C1020 V8600C1145 *NEW*

BAXI COMBI 80E,80 ECO,105E,105HE DIVERTER & WATER VALVE 248061 7224344 GENUINE

Trident Central Heating Pump 25/60-130 compatible with Grundfos pump replacement

POTTERTON SUPRIMA 30L 40L 50L 60L 70L 80L 100L PCB 5111603 5107117

New listingViessmann 300 WB3B Circuit Board Complete With Pressure Gauge Working

TESY Vertical Electric Hot water Cylinder 30L / 50L / 80L / 100L / 120L / 150L

Vaillant Ecotec Plus 612 System Boiler

Baxi Main Multifit Standard Horizontal Flue 7222019

New listingVaillant PCB 0010028086 GENUINE Part BRAND NEW IN BOX SEALED!

Adey Magnaclean Pro Professional 2 22mm Magnetic Filter Sludge Remover

Vaillant Standard Horizontal Flue Kit Brand New 0020219517 Boiler Ecotec Genuine

Honeywell Home V4043H 1056 - 2 Port Motorised Zone Valve 22mm V4043H1056 (272848

New listingGrant Vortex Eco 15/21 Lower Baffle Set

Vaillant Ecotec Plus 824 831 837 & Pro 24 28 PCB 0020132764 ( 1 Year Warranty )

DIVERTER VALVE FOR BAXI COMBI 105E, HE, 80E & MAIN COMBI 24, 30HE 248061 7224344

Worcester Greenstar 24i & 28i Junior Return-Unit Manifold 87161064420 Compatible

Fernox F1 & F3 Twin Pack Central Heating Protector and Cleaner, 500ml, Each

Magnetic Boiler Filter 22mm Inline for Central Heating inc Iso Valves TC-FILTER

IDEAL LOGIC COMBI & PLUS 24 30 35 SYSTEM/HEAT 12 15 18 24 30 GENUINE FAN 175569

VAILLANT ECOTEC PRO 24 28 (2012 MODEL) CIRCUIT BOARD PCB 0020108264

Motorised 2 Port Zone Valve 22mm Central Heating Valve

Honeywell 28mm Two Port Zone Valve 272887/U

Brand new Vaillant 303903 1m Flue Extension BNIB

Adey Magnaclean Professional / Micro 2 Filter Top O Ring Seal Washer Service Kit

Baxi Motor Cartridge 7216534 248733 5132452 710188301 7656807 720003100

16L Portable Instant Gas Hot Water Heater LPG Camp Shower Boiler Caravan Horse

WORCESTER GREENSTAR ERP 25I & 30I BOILER SMALL FILLING KEY 87161045910

Tesy Electric Hot Water Cylinder 80 Litre Unvented, 2000w, Wall Mounted

87161063540 WORCESTER GREENSTAR COMBI 25 29 30 31 & 34 35 37 38 40 42 CDI PUMP

VAILLANT ECOTEC PRO 28 VUW GAS VALVE 0020146732

Vaillant Ecotec Pro 24 Ecotec Pro 28 PCB 0020052093 0020132764 0020107811

IDEAL ISAR HE24 HE30 HE35 & ICOS HE12 HE15 HE18 HE24 BOILER PCB 174486 173534

Travel Heater Element Mini Boiler Hot Water Coffee Immersion 500W 220V Adapter

Axiom 16 Amp Mains Electro Mechanical Immersion / General Purpose Timer - IMT24H

Central Heating Magnetic System Boiler Filter 22mm Valves Boiler-m8 Defender-2

Ideal Logic Combi & Logic Plus Combi 24 30 35 Boiler Fan- MPN 175569

Portable Electric Immersion Heater Boiler Spiral Tube Water Heating Element

WORCESTER 24 CDi RSF OF BF, 28 CDi RSF & 35CDi II RSF DIVERTER VALVE 87161567460

MAIN ECO COMPACT SYSTEM 15 18 & COMBI 25 30 BOILER PCB 7688421

VAILLANT ecoTEC Pro 24 28 Plus 612 615 618 624 PUMP 3 WIRE 178983 59866553

BAXI DUOTEC DUO TEC 24HE 28HE 33HE 40HE TEMPERATURE SENSOR THERMISTER 5114725

Worcester Boiler Flow Sensor Turbine Adaptor 87161064330 8716122264

New listingIDEAL ESPIRIT MAIN HEAT EXCHANGER KIT 177566 175571 175896 Genuine

New listingWorcester 24i 28i Junior RSF Combi Printed Circuit Board PCB 87483004840 New

Worcester Condensfit Telescopic Horizontal Flue Kit 100mm 7716191082

Vaillant Boiler PCB (2012) 0010028086 0020116983 Type 3

Vaillant Diverter Valve 0020020015

Vaillant EcoTEC Plus 824 831 837 937 PCB (From 2012)0020254533, 0010028086 New*

Ideal 203129 Flue Extension Kit 1m 60/100 Pack D

VAILLANT ECOTEC PLUS 824 831 837 937 PRO 24 28 EXPANSION VESSEL 181051 & 178985

VAILLANT ECOTEC PLUS DIVERTER VALVE 0020132682

Backer Backermatic BMST11 Immersion Heater Thermostat 11" with Reset - BMST11

VAILLANT ECOTEC PRO 24 28 DIVERTER VALVE 0020020015

SPIROTECH SpiroVent RV2 22mm Deaerator UA022W d1

Worcester Bosch Plume Management Kit 7716191086

Baxi Duotec 24 28 33 40 Combi ErP Diverter Valve Actuator Motor 7216534

Brand new IDEAL LOGIC PLUS COMBI C24 C30 & C35 BOILER GAS VALVE KIT 179032 -

Baxi Duo Tec 24 28 33 40 Diverter Valve Motor & CARTRIDGE 720003100 & 248733

ALPHA INTEC X24 28 C26 30 34 GS 30 40 PCB 1.030267 WAS 3.022790 12-MONTH WARRANT

18L LPG Propane Gas Tankless Instant Hot Water Heater Boiler With Shower Kit

Best selling

Baxi 7222019 Multifit Horizontal Flue Kit

Worcester 87161064420 Return Manifold Sub Assembly

Honeywell Home V4043H 1056 - 2 Port Motorised Zone Valve 22mm V4043H1056

Vaillant 303903 1m Flue Extension

Ideal 1m Flue Extension (Pack D) - 203129

Ideal Boilers Fan Kit - 175569

Magnetic Boiler Filter 22mm Inline for Central Heating Compliance Pack TC-FIL

Baxi Duotec NTC Thermistor (5114725)

Top-rated

Baxi Duotec NTC Thermistor (5114725)

Vaillant timeSWITCH 150 Analogue Timer - 0020116882

Worcester 87161064420 Return Manifold Sub Assembly

Bosch 87161066850 Worcester Junior Heat Exchanger

Sentinel X800 1L Fast Acting Cleaner

Vaillant 0020010291 Service Cock - Gold

Glowworm Flexicom Ultracom PCB - 0020023825

New listing24v Grey Push Button Gas Valve V8600C1053 V8600C1020 V8600C1145 NEW