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948 products found
BEST SELLERS
Vaillant - Ecotec Expansion Vessel 181051 (All Models)
Vaillant - Ecotec Expansion Vessel 181051 (All Models)
  • Free delivery (postcode specific)
£29.00
Cotherm - Replacement TSE 11" T115 16A 250V Immersion Thermostat TSE00187
Cotherm - Replacement TSE 11" T115 16A 250V Immersion Thermostat TSE00187
(7)
  • Free delivery (postcode specific)
£24.00
Vaillant - Ecotec Expansion Vessel 181051 & PRV 178985 (Original)
VAILLANT
Vaillant - Ecotec Expansion Vessel 181051 & PRV 178985 (Original)
(1)
  • Free delivery (postcode specific)
£45.99
RM Cylinders Spare Dual Thermostat
RM Cylinders Spare Dual Thermostat
(1)
  • Free delivery (postcode specific)

£65.40

£21.64
- 66 %
24 Litre Aquasystems ARB24 Expansion Vessel Potable 3 Bar with Integral Bracket
24 Litre Aquasystems ARB24 Expansion Vessel Potable 3 Bar with Integral Bracket
(6)
  • Free delivery (postcode specific)

£70.32

£38.99
- 44 %
18 Litre Aquasystems ARB18 Expansion Vessel Potable 3 Bar with Integral Bracket
18 Litre Aquasystems ARB18 Expansion Vessel Potable 3 Bar with Integral Bracket
  • Free delivery (postcode specific)

£63.12

£35.99
- 42 %
Heatrae Sadia - Megaflo Thermostat 11 Rod Type TSE 95612599 95612026 T115
Heatrae Sadia - Megaflo Thermostat 11 Rod Type TSE 95612599 95612026 T115
(4)
  • Free delivery (postcode specific)
£24.00
18 LTR Aquasystems ARB18 Expansion Vessel Potable 3.5 Bar with Integral Bracket
18 LTR Aquasystems ARB18 Expansion Vessel Potable 3.5 Bar with Integral Bracket
  • Free delivery (postcode specific)

£63.12

£36.99
- 41 %
12 Litre Varem Extravarem LC White Potable Water Expansion Vessel 3/4" Connection
12 Litre Varem Extravarem LC White Potable Water Expansion Vessel 3/4" Connection
  • Free delivery (postcode specific)

£62.33

£39.00
- 37 %
Aquasystem 18 Litre Replaceable Membrane Potable Expansion Vessel 465x280mm
Aquasystem 18 Litre Replaceable Membrane Potable Expansion Vessel 465x280mm
  • Free delivery (postcode specific)

£58.08

£32.99
- 43 %
Vokera 20059643 RF Thermostat (7 Day)
Vokera 20059643 RF Thermostat (7 Day)
  •  
£55.50
Rectangular expansion vessel 0.8B 18L - FRISQUET : 410120
FRISQUET
Rectangular expansion vessel 0.8B 18L - FRISQUET : 410120
(12)
  • Free delivery (postcode specific)
£99.24
Heating element TG100 RM75/100 RME1 800W - FAGOR : 282019CCK
FAGOR
Heating element TG100 RM75/100 RME1 800W - FAGOR : 282019CCK
(2)
  •  
£11.47
T-MEC2 11" THERMOWATT THERMOSTAT
T-MEC2 11" THERMOWATT THERMOSTAT
  • Free delivery (postcode specific)
£106.80
Reliance - Aquasystem 24 Litre Potable Expansion Vessel C/W Bracket XVES050065
Reliance - Aquasystem 24 Litre Potable Expansion Vessel C/W Bracket XVES050065
  • Free delivery (postcode specific)
£35.81
R3 ECO Electric Heating Element + With Thermostat, Timer and Remote for Towel Rails & Radiators

6 models

R3 ECO Electric Heating Element + With Thermostat, Timer and Remote for Towel Rails & Radiators
  • Free delivery (postcode specific)

£84.99
Heatrae Sadia - Megaflo Thermostat 11 Rod Type TSE/TSR 95612026 95612599
Heatrae Sadia - Megaflo Thermostat 11 Rod Type TSE/TSR 95612026 95612599
  • Free delivery (postcode specific)

£35.84

£29.87
- 16 %
Immersion Heater Lower with TSE/TSRAlternative to: Heatrae Sadia Megaflo95606963
Immersion Heater Lower with TSE/TSRAlternative to: Heatrae Sadia Megaflo95606963
  • Free delivery (postcode specific)
£76.58
Albion Water Heaters - RTS-3 Immersion Thermostat
Albion Water Heaters - RTS-3 Immersion Thermostat
  • Free delivery (postcode specific)

£44.05

£21.99
- 50 %
RM Cylinders Spare Immersion Heater
RM Cylinders Spare Immersion Heater
  • Free delivery (postcode specific)

£69.60

£50.00
- 28 %
Sheathed element 2200W 230V + anode + gasket - ATLANTIC : 060187
ATLANTIC
Sheathed element 2200W 230V + anode + gasket - ATLANTIC : 060187
(6)
  • Free delivery (postcode specific)
£83.14
Salus VS20WRF Zigbee Digital Control Battery White
Salus VS20WRF Zigbee Digital Control Battery White
  • Free delivery (postcode specific)
£62.25
Heating element 3000W 230/400V - DIFF for Atlantic : 060173
Heating element 3000W 230/400V - DIFF for Atlantic : 060173
(1)
  • Free delivery (postcode specific)
£91.24
ACCESSORIES FOR WATER HEATER - Safety unit small tank
ACCESSORIES FOR WATER HEATER - Safety unit small tank
  •  
£12.20
Hotun Shield for Hotun & Hotun Hiflo SF Dry Trap Tundish HSSF
Hotun Shield for Hotun & Hotun Hiflo SF Dry Trap Tundish HSSF
  • Free delivery (postcode specific)
£14.30
Hotun Hiflo SF Speedfit 15mm x 32mm Dry Trap Tundish - White
Hotun Hiflo SF Speedfit 15mm x 32mm Dry Trap Tundish - White
  • Free delivery (postcode specific)
£34.00
Solar expansion vessel 24L
Solar expansion vessel 24L
  • Free delivery (postcode specific)
£69.51
MTS Ariston 60001652 Spare Indirect Thermostat Kit
ARISTON THERMO
MTS Ariston 60001652 Spare Indirect Thermostat Kit
  • Free delivery (postcode specific)

£76.62

£62.99
- 17 %
24 LTR Aquasystems ARB24 Expansion Vessel Potable 3.5 Bar with Integral Bracket
24 LTR Aquasystems ARB24 Expansion Vessel Potable 3.5 Bar with Integral Bracket
(1)
  • Free delivery (postcode specific)

£70.32

£49.25
- 29 %
Cotherm - 1 3/4" 3kW Immersion Heater 11" for Unvented Cylinders
Cotherm - 1 3/4" 3kW Immersion Heater 11" for Unvented Cylinders
  • Free delivery (postcode specific)
£33.54
Aquasystem 24 Litre Replaceable Membrane Potable Expansion Vessel 492x280mm
Aquasystem 24 Litre Replaceable Membrane Potable Expansion Vessel 492x280mm
(1)
  • Free delivery (postcode specific)

£65.28

£35.99
- 44 %
5 Litre Varem Extravarem LC White Potable Water Expansion Vessel 3/4" Connection
5 Litre Varem Extravarem LC White Potable Water Expansion Vessel 3/4" Connection
  • Free delivery (postcode specific)

£54.17

£35.00
- 35 %
Immersion heater 1"1/4 - Type ECB3 2500w
Immersion heater 1"1/4 - Type ECB3 2500w
(2)
  •  
£33.68

Direct water heater buying guide

Buying guide
Screw-on immersion heater 12kW
Screw-on immersion heater 12kW
  • Free delivery (postcode specific)
£344.82
Redring 97783201 Spare 3kw Element & Seal
Redring 97783201 Spare 3kw Element & Seal
  • Free delivery (postcode specific)

£93.74

£51.68
- 44 %
Gledhill 3kW Immersion Heater
Gledhill 3kW Immersion Heater
  • Free delivery (postcode specific)

£107.22

£57.15
- 46 %
Ariston - 11" Thermostat 691216
ARISTON
Ariston - 11" Thermostat 691216
(4)
  • Free delivery (postcode specific)
£15.39
Reliance - Aquasystem ARB18 Litre Potable Expansion Vessel C/W Bracket XVES050055
Reliance - Aquasystem ARB18 Litre Potable Expansion Vessel C/W Bracket XVES050055
  • Free delivery (postcode specific)
£32.52
Heatrae Sadia - Thermostat Indirect Combined/Thermal Cut Out (New) 95612719
Heatrae Sadia - Thermostat Indirect Combined/Thermal Cut Out (New) 95612719
  • Free delivery (postcode specific)
£47.27
ERES Expansion Vessel

6 models

ERES Expansion Vessel
  • Free delivery (postcode specific)

£44.23

£35.11
- 20 %
Cotherm - 1" 3/4" 3kW Immersion Heater 14" for Unvented Cylinders
Cotherm - 1" 3/4" 3kW Immersion Heater 14" for Unvented Cylinders
  • Free delivery (postcode specific)
£39.94
18 Litre Varem Extravarem LC White Potable Water Expansion Vessel 3/4" Connection
18 Litre Varem Extravarem LC White Potable Water Expansion Vessel 3/4" Connection
  • Free delivery (postcode specific)

£70.39

£44.00
- 37 %
Immersion heater for water heater - Specific PACIFIC - ATLANTIC - SAUTER - THERMOR Ref 399275 - PACIFIC : 060413
Immersion heater for water heater - Specific PACIFIC - ATLANTIC - SAUTER - THERMOR Ref 399275 - PACIFIC : 060413
  • Free delivery (postcode specific)
£114.46
Heatrae Sadia Titanium Immersion Heater - Lower 95606988
Heatrae Sadia Titanium Immersion Heater - Lower 95606988
  • Free delivery (postcode specific)
£99.50
Cotherm Dual Thermostat TS207 Alternative For Range
Cotherm Dual Thermostat TS207 Alternative For Range
  • Free delivery (postcode specific)
£30.63
Albion Water Heaters - Thermostat Pocket
Albion Water Heaters - Thermostat Pocket
  • Free delivery (postcode specific)

£24.60

£15.83
- 35 %
Range - Stainless Steel Thermostat Pocket POCK10
Range - Stainless Steel Thermostat Pocket POCK10
  • Free delivery (postcode specific)
£31.15
Solar expansion vessel 18L
Solar expansion vessel 18L
(1)
  • Free delivery (postcode specific)
£59.81
Immersion heater thread fitting m10 - Type ECB2 1800w
Immersion heater thread fitting m10 - Type ECB2 1800w
  •  
£46.73
ACCESSORIES FOR WATER HEATER - Security unit distance 38mm -20x27 M/F
ACCESSORIES FOR WATER HEATER - Security unit distance 38mm -20x27 M/F
(25)
  •  
£21.69
Sonde de température hm / vs tec1 - ATLANTIC : 029346
ATLANTIC
Sonde de température hm / vs tec1 - ATLANTIC : 029346
(4)
  •  
£20.45
Expansion vessel 7,5L - DIFF for Saunier Duval : 05602500
Expansion vessel 7,5L - DIFF for Saunier Duval : 05602500
(1)
  • Free delivery (postcode specific)
£116.46
Chrome Heating Element - 300 watt
Chrome Heating Element - 300 watt
  •  

£99.95

£40.00
- 59 %
Titan Plastech Spare UVEXPANSION12 12 Litre Potable Expansion Vessel
Titan Plastech Spare UVEXPANSION12 12 Litre Potable Expansion Vessel
  • Free delivery (postcode specific)

£75.31

£35.55
- 52 %
Chaffoteaux 65101396 thermostat
CHAFFOTEAUX
Chaffoteaux 65101396 thermostat
  • Free delivery (postcode specific)
£43.02
ACCESSORIES FOR WATER HEATER - Water seal
ACCESSORIES FOR WATER HEATER - Water seal
  •  
£2.21
Heatrae Sadia Megaflo/Megaflow Upper Immersion Heater - 95606962
Heatrae Sadia Megaflo/Megaflow Upper Immersion Heater - 95606962
  • Free delivery (postcode specific)

£110.57

£80.00
- 27 %
Heatrae Sadia 95612599 Thermostat 11" Rod Type TSE (Replace TSR 95612026)
Heatrae Sadia 95612599 Thermostat 11" Rod Type TSE (Replace TSR 95612026)
  • Free delivery (postcode specific)

£86.72

£40.00
- 53 %
Screw-on immersion heater 9kW
Screw-on immersion heater 9kW
  • Free delivery (postcode specific)
£305.79
Heatrae Sadia Megaflo HE Lower/Bottom Immersion Heater 95606963 Complete
Heatrae Sadia Megaflo HE Lower/Bottom Immersion Heater 95606963 Complete
  • Free delivery (postcode specific)

£151.48

£88.00
- 41 %

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