Best Water Heaters Parts Deals Online in the UK (25 Deals Found)

Last Updated - 15/12/2025 Sort By:

Best Choice
H66WH

New
Instant Hot Water Tap, 3-Sec Fast Electric Hot Water Tap, 220V 3400W Instant Hot Self Heating Tap Adapter, Hot and Cold
3 Second Fast Heating:The electric instant hot water tap adapter adopts stainless steel heating elements, which can quic

£23.99
Best Value
Mersyn

New
Instant Hot Water Tap, 220V 3000W Electric Hot Water Heater Tap, Stainless Steel Electric Hot and Cold Mixer Water Taps
[3 Seconds Fast Heating] - With a brushed stainless steel heating element and a heating power of 3000W, this Electric Ho

£24.99 £27.59
New
New Genuine ZIP Water Heater Boiler Spare Parts Tap Top Kit Valve Cistern ETC
Valve Body with Inlet Nozzle SP88300, Cistern Lid & Gasket Kit HB/AB 90488UK, Lid & Gasket Kit 5.0/7.5Lt 90132UK. Cister

£30.00
Stiebel Eltron

New
Stiebel Eltron DCE-X 6/8 Premium Compact Instant Water Heater, Suitable for Showers, Maximum Energy Efficiency, Accurate
APPLICATION: Fully electronically controlled instantaneous water heater for space-saving over-the-sink installation in s

£344.99
New
MAIN ECO COMPACT 30 COMBI EXPANSION VESSEL 7L ASSEMBLY 7683801
We will always help you to have a 100% positive happy buying experience. Baxi 624, Baxi 630, Baxi 636, Baxi 825, Baxi 83

£70.00
Ariston

New
Ariston ANDRIS R 10 L Undersink Electric Water Heater, 2kW Control Unit, B class ErP rating, Economy “E” Setting, Manufa
Water heater designed and manufactured to be installed in UK

£93.48
Spares2go

New
SPARES2GO 27" Incoloy Hard Hot Water Immersion Heater Boiler Element + Copper Pocket + Thermostat
Hard Water Incoloy Immersion Water Heating Element + Thermostat made for SPARES2GO (27", 3000W, 230V)

£43.99
New
50X VAILLANT ECOTEC PRO 24 & 28 HEAT EXCHANGER DOOR GASKET SEAL 0020038679
Vaillant Boiler Spares ECOmax 613 (2000-2001). Vaillant Boiler Spares ecoMAX 613/2 E (2001-2007). Vaillant Boiler Spares

£499.75
Ariston

New
Ariston Water Heater Expansion Vessel Kit A
Ariston Water Heater Expansion Vessel Kit A

£30.99
Used
Andrews Water Heater RFF 190 For Parts Or Spares
This Andrews Water Heater RFF 190 is available for purchase as parts or spares. The storage tank water heater has a volt

£208.70
Primaflow

New
Duratherm Resetable Immersion Heater Thermostat 7 Inch 49020307
This listing is for a Pack of 1 x 7 inch immersion heater thermostat with cut out

£10.49
RJLLKD

New
220V 600W Boiling Water Heating Tube, Auto Temp Control Stainless Steel Heating Tube Portable Electric Immersion Water H
Fast & Efficient Heating: This 600W immersion water heater rapidly boils water in just 2–3 minutes. Ideal as a travel wa

£8.99
New
For Atwood Water Heater 93866 91447 ECO Thermostat Assembly Kit Replace Parts UK
Just place the thermostat and ECO in their respective cutouts, replace the spring and washer, cover with foam, and recon

£12.14
QCXWCJWD

New
Electric Hot Water Faucet 3000W, Tankless Electric Heater Kitchen Sink Faucet, Instant Hot Water Tankless Electric Hot W
【Electric Hot Water Faucet】This electric hot water faucet uses a brushed stainless steel heating element with a heating

£28.49
New
Water Heater Assembly Efficient and Replacement Parts for Water Heaters
Easy installation and long lasting durability with our water heater assembly for tubing propane. With its built in deple

£10.92 £11.50
QCXWCJWD

Used
Electric Hot Water Faucet 3000W, Tankless Electric Heater Kitchen Sink Faucet, Instant Hot Water Tankless Electric Hot W
【Electric Hot Water Faucet】This electric hot water faucet uses a brushed stainless steel heating element with a heating

£22.00
New
Chaffoteaux Britony 2A 2T 11T BF, FF Water Heater Diaphragm 60025809.30 25809.20
Heating Trade Supplies, Tyne View Terrace. Heating Trade Supplies, Tyne View Terrace Wallsend, Tyne and Wear, NE28 6SG.

£4.20
New
Main Multipoint BF Water Heater Thermocouple 5110886 Inc. VAT Next Day Option
Main Multipoint BF Water Heater Thermocouple 5110886 Inc. We only have this part as fitting one appliance, The MAIN MULT

£74.99
New
PWM Controlled Electric Heater Water Valve with Pot, Knob and Flange 12v
This valve is designed for use within automotive heating circuits, it is compatible with all commonly found glycol mixtu

£93.33
New
Baxi Duotec 24HE 28HE 33HE 40HE A 3 Way Diverter Valve Cartridge Kit 720003100
BAXI DUOTEC 24HE. BAXI DUOTEC 24HE A. BAXI DUOTEC 24HE LPG. BAXI DUOTEC 28HE. BAXI DUOTEC 28HE A AFTER CAC0929. BAXI DUO

£12.99
New
Water Heater Replacement Parts Propane Water Heater Assembly for Water Heaters
Features: Keep your family safe with our water heater assembly for tubing propane! Experience easy installation and long

£9.41 £9.90
New
Hot Water Boiler Heater Thermostat Knob for POTTERTON BAXI PROFILE 60e 80
Hot Water Heater Boiler Thermostat Knob for POTTERTON BAXI PROFILE. POTTERTON BAXI PROFILE. Appliance repairs must alway

£14.99 £20.79
New
Premium Brass Air Pressure Release Valve Accessory for Water Heater Parts
Brass Air Pressure Release Valve: Made of high-quality brass material, this air pressure release valve is designed to be

£3.80
New
Alpha 3.022784 - Heat Exchanger Original Boxed Part
Original Boxed Part. We will always help you to have a 100% positive happy buying experience.

£131.95
New
Vokera Plus 25/29/30 C Boiler PCB 20069541 20055454 20025735
Fans: Fan coils and motors failing due to boiler overheating will not be covered under warranty. Failures or defects cau

£56.40 £112.80

25 Water Heaters Parts deals are available from: Amazon, eBay stores, starting from £3.80.
The biggest discount we found is 9% on Instant Hot Water Tap, 220V 3000W Electric Hot Water Heater Tap, Stainless Steel Electric Hot and Cold Mixer Water Taps with Digital Display for Kitchen Bathroom Washroom, UK Plug at Amazon.
The lowest price we found is £3.80 while the highest is £499.75.
Prices for the best Water Heaters Parts deals average at £74.64.
Last updated on December 15, 2025.
We scanned these quality online stores and more to deliver you with the best offers online available for Water Heaters Parts.