10 bestInline Water Heaterof December 2025
112M consumers helped this year.
1
Stiebel Eltron DCE-X Premium Compact Instant Water Heater, Suitable for Showers, Maximum Energy Efficiency, Accurate Temperature delivery, 238159, 220240 V, White, 10/12 kW
Stiebel Eltron
10.0
25% off
2
Ariston VELIS EVO Wi-Fi 45 L Electric Storage Water Heater, Inclusive Of Unvented Kit, B Class Erp Rating, Twin Tank Technology, Aqua Ariston Net App, Manufactured To Be Installed In UK - 3626307.
Ariston
10.0
26% off
3
Ariston VELIS EVO 80 L Electric Storage Water Heater, Inclusive Of Unvented Kit, Twin Tank Technology, Shower Ready, Eco Evo Function, Extreme Durability. Manufactured to be installed in UK – 3626306
Ariston
9.9
4
Briwellna Streamline Electric Water Heater 5.5KW, Undersink Tankless Water Heater Point-of use with Digital Display, Above/Under Counter On-Demand Hot Water Heater 220V (White)
Briwellna
9.7
5
GEESEN Hot Electric Water Heater - 2KW, 30L, 240V Compact Point-of-Use Design for RVs, Trailers, and Kitchens with Adjustable Thermostat
GEESEN
9.4
Other
Hyco Aquila Instantaneous Inline Water Heater
Thermomate ELEX5.5 Instant Electric Water Heater with Backlit LED Display, 5.5kW Tankless Hand Wash for Basins Sinks, Over/Under Sink Installation, Hard Wire
Upgrade Tankless Water Heater Electric 9KW 240V, On Demand Instant Endless Hot Water Heater with Self Modulates to Save Energy Use (Pink)
Camplux AY132 Tankless Propane Gas Water Heater White 5L
6
Triton Showers SPT303I T30I handwash Water Heater, White
Triton Showers
9.2
7
Ariston ANDRIS LUX ECO 15 L Undersink Electric Water Heater 2.5kW with A Titanium Enamelled Tank, A Class Erp Rating, Copper Heating Element, Manufactured To Be Installed In UK - 3100722, White
Ariston
8.9
8
CAMPLUX BW158BC 6L Instant Gas Water Heater with Rain Cap, Tankless Propane Gas Boiler, Use for Outdoor Shower Camping RV Trip Horse Washing
CAMPLUX
8.7
20% off
9
CAMPLUX AY132P43 5L Portable Gas Water Heater with 4.3L Water Pump 12V,Tankless LP Gas Boiler with Folding Handle,Use for Outdoor Camping Shower RV Trip Washing Horse
CAMPLUX
8.4
10
STIEBEL ELTRON Small unvented Electric Water Heater SNU 10 Plus (GB), Water Heater Under Sink 10 l, Anti-drip Function, thermostop Function, Very Compact, 2 kW, White, 204981
Stiebel Eltron
8.1
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