Immersion Heaters

Immersion Heaters

At Discounted Heating, you’ll find a great range of immersion heaters and accessories to suit a wide variety of applications. Whether you’re looking to repair an existing heater or to install a new one, you’re sure to find everything you need from our extensive selection.

Immersion heaters can be used as a primary source of hot water or as an added extra for properties with a combi boiler or other central heating system. Able to operate with only a mains electricity connection or suitable solar system, they can be useful for properties that don’t have a gas connection and are often used as a backup source of hot water.

Always conscious of safety, reliability, and durability concerns, we stock immersion heaters and replacement plumbing parts from some of the UK’s biggest brands. Browse products from top manufacturers like Gledhill, Ariston, and Heatrae Sadia and discover all kinds of immersion heater maintenance essentials from thermostats to washers.

We’re constantly working to update and broaden our selection of heaters and accessories, so be sure to check back frequently to take advantage of our high-quality products at low prices.

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Heatrae Sadia 95606920 Immersion Heater with Cap in White

Heating spare for Heatrae Sadia immersion heaters. Immersion heaters are fitted with an RDT combined..

£115.98 inc Vat Ex VAT: £96.65

Ariston 935347 Immersion Heater & Stat

The Ariston 935347 Immersion Heater & Stat manufactured by: AristonThis spare part is designed to fi..

£58.06 inc Vat Ex VAT: £48.38

Gledhill Xb081 Immersion Thermostat -10%

Gledhill Xb081 Immersion Thermostat

The Gledhill Xb081 Immersion Thermostat manufactured by: Gledhill This spare part is designed to fi..

£16.32 inc Vat £14.70 inc Vat Ex VAT: £12.25

Vail 0020009868 Immersion Heater Control

The Vail 0020009868 Immersion Heater Control manufactured by: VailantThis spare part is designed to ..

£124.18 inc Vat Ex VAT: £103.48

Heatrae Sadia Vertical Resettable Immersion Heater Thermostat 18 95980036

All Heatrae Sadia domestic immersion heaters are fitted as standard with an RDT combined thermostat ..

£10.90 inc Vat Ex VAT: £9.08

Range Cylinders TS9 Immersion Heater

Range Cylinders TS9 Immersion Heater..

£37.96 inc Vat Ex VAT: £31.63

Gledhill Xg086 Immersion With O'Heat -10%

Gledhill Xg086 Immersion With O'Heat

The Gledhill Xg086 Immersion With O'Heat manufactured by: GledhillThis spare part is designed to fit..

£147.85 inc Vat £133.20 inc Vat Ex VAT: £111.00

Keston Ksi12511000 Immersion Heater -10%

Keston Ksi12511000 Immersion Heater

The Keston Ksi12511000 Immersion Heater manufactured by: KestonThis spare part is designed to fit (y..

£72.83 inc Vat £65.62 inc Vat Ex VAT: £54.68

Heatrae Sadia Horizontal Resettable Immersion Heater Thermostat

All Heatrae Sadia domestic immersion heaters are fitted as standard with an RDT combined thermostat ..

£11.38 inc Vat Ex VAT: £9.48

Heatrae Sadia Horizontal Resettable Immersion Heater Thermostat 7

All Heatrae Sadia domestic immersion heaters are fitted as standard with an RDT combined thermostat ..

£10.90 inc Vat Ex VAT: £9.08

Center Brand UDC/54/223 NA Immersion Heater Washers, Set of 5

This Accoutrement header washer, UDC/54/223, comes with a pack of 5.Features:Pack of 5..

£7.13 inc Vat Ex VAT: £5.94

Masefield Epson L15IHW NA Immersion Heater Washer 82.50 mm Outside Diameter Pre-Order

Masefield Epson L15IHW NA Immersion Heater Washer 82.50 mm Outside Diameter

This immersion heater washer, L15IHW, measures 82.50 mm outside diameter by 66.20 mm inside diameter..

£1.09 inc Vat Ex VAT: £0.91

Masefield Epson L15IHW-L NA Immersion Heater Washer 95.75 mm Outside Diameter Pre-Order

Masefield Epson L15IHW-L NA Immersion Heater Washer 95.75 mm Outside Diameter

This immersion heater washer, L15IHW-L, measures 95.75 mm outside diameter by 68.60 mm inside diamet..

£1.54 inc Vat Ex VAT: £1.28

Masefield Epson L15IHW-LG NA Immersion Heater Washer 95.15 Outside Diameter Pre-Order

Masefield Epson L15IHW-LG NA Immersion Heater Washer 95.15 Outside Diameter

This immersion heater washer graphite coated, L15IHW-LG, measures 95.15 mm outside diameter by 68.00..

£1.76 inc Vat Ex VAT: £1.47