Under Sink Water Heaters

Under sink water heaters discreetly supplement your home’s hot water supply. If you’re finding you’re waiting a long time in rooms that are far from your boiler, an under sink water heater might be just the solution. They simply plumb into your existing pipes and supply hot water to your taps or shower.

To learn more about different types of water heaters, check out our Water Heaters Buying Guide.

Hyco Speedflow 15L Undersink Unvented Water Heater 2000W (2.0kW) - SF15K

~~£115.95~~
£108.95 (inc. VAT)

Redring 10 Litre Unvented Undersink Water Heater - EW10

£168.95 (inc. VAT)

Redring 15 Litre Unvented Undersink Water Heater - EW15

£177.95 (inc. VAT)

Hyco Speedflow 10L Undersink Unvented Water Heater 2kW - SF10K

~~£169.49~~
£112.99 (inc. VAT)

Hyco Handyflow 5L Vented Undersink Water Heater c/w HFTAPQ - HF05MVC

~~£182.93~~
£121.95 (inc. VAT)

Hyco Speedflow 5L Undersink Unvented Water Heater 2kW - SF05K

~~£160.49~~
£106.99 (inc. VAT)

Redring 15 Litre Unvented Undersink Water Heater - MW15

~~£429.95~~
£189.95 (inc. VAT)

SALE

Redring 10 Litre Unvented Undersink Water Heater - MW10

~~£299.95~~
£299.50 (inc. VAT)

Hyco Speedflow 10L Undersink Unvented Water Heater 1.2kW - SF10K12

~~£188.99~~
£125.99 (inc. VAT)

SALE

Hyco Speedflow 10L Stainless Steel Undersink Unvented Water Heater 2kW - SF10SS

~~£263.99~~
£175.99 (inc. VAT)

Hyco Speedflow 15L Undersink Unvented Water Heater 1.2kW - SF15K12

~~£203.99~~
£135.99 (inc. VAT)

Redring 15 Litre Unvented Undersink Water Heater - EW15 (Return Unit)

On Sale from £116.44 (inc. VAT)

Returned
Unit

ATC 5L Pacific Under Sink Water Heater - W5-U

~~£92.95~~
£83.50 (inc. VAT)

Rointe Venice 15L Compact Under Sink Electric Water Heater - VWI015DHWU4

~~£128.95~~
£127.95 (inc. VAT)

Rointe Venice 10L Compact Electric Under Sink Water - VWI010DHWU4

~~£164.80~~
£98.95 (inc. VAT)

SALE

Redring 10 Litre Unvented Undersink Water Heater - EW10

£111.16 (inc. VAT)

Returned
Unit

ATC 10L Pacific Under Sink Water Heater - W10-U

£96.95 (inc. VAT)

Redring 15 Litre Unvented Undersink Water Heater - MW15 - Return Unit

On Sale from £321.95 (inc. VAT)

Hyco Speedflow 10L Stainless Steel Undersink Unvented Water Heater 1200W (1.2kW) - SF1512SS

~~£307.49~~
£204.99 (inc. VAT)

Hyco Speedflow 10L Stainless Steel Undersink Unvented Water Heater 1200W (1.2kW) - SF1012SS

~~£262.49~~
£174.99 (inc. VAT)

Hyco Speedflow 15L Stainless Steel Undersink Unvented Water Heater 2000W (2.0kW) - SF15SS

~~£293.99~~
£195.99 (inc. VAT)

ATC 14L Pacific Under Sink Water Heater - W15-U

£117.50 (inc. VAT)

Hyco Handyflow 5L Vented Undersink Water Heater 2000W (2.0kW) with HFTAPQ Tap Included - HF05MVC - Return Unit

On Sale from £73.17 (inc. VAT)

Redring 10 Litre Unvented Undersink Water Heater - MW10 - Return Unit

On Sale from £224.95 (inc. VAT)

Ariston Andris Lux Eco 10L Undersink Water Heater 2.5kW - 3100718 (Return Unit)

On Sale from £0.00 (inc. VAT)

Returned
Unit

Under sink water heaters provide instant hot water by drawing cold water from your supply and storing it in the holding chamber. Then, when you need it, it is moved from the holding chamber, over a heated element to deliver instant hot water. While this is happening, more cold water is drawn into the holding chamber for the process to repeat.