Ariston ANDRIS R 15 L Undersink Electric Water Heater, 3kW, Control Unit, B class ErP rating, Economy “E” Setting, Manufactured to be installed in UK – 3100834. [Energy Class B]


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ErP Rating B B B B
Capacity 10L 15L 10L 15L
Installation Undersink Undersink Undersink Undersink
Power 3kW 3kW 2kW 2kW
Heating Time (ΔT = 45°C) 12 min 18 min 17 min 26 min
Tapping Profile XXS XXS XXS XXS
Dimensions 36 x 29,8 x 38,5 cm 36 x 34,6 x 38,5 cm 36 x 29,8 x 38,5 cm 36 x 34,6 x 38,5 cm


Weight: 7.5 kg
Dimensions: 36 x 34.6 x 38.5 cm; 7.5 Kilograms
Brand: Ariston
Part: 3100834
Batteries Required: No

7 Responses

  1. KellyeFairbank says:

     United Kingdom

    We bought this for a detached annexe and it does the job perfectly. Plenty of very hot water for the kitchen and bathroom sinks. Fits nicely under the kitchen sink too.

  2. Anonymous says:

     United Kingdom 🇬🇧

    Small and suitable for under sink installation. Provides controllable warm water supply.

  3. Anonymous says:

     United Kingdom

    Golden Review Award: 3 From Our UsersUsing this to heat water for a sink in a bathroom and a kitchen sink for an annex. Easy to install, hard wired to a plug socket and attached to the wall. Hot water pretty much instantly. Excelllent bit of kit for the job

  4. MindaGoodchild says:

     United Kingdom

    bought for outside in lambing shed hot water on demand brilliant.

  5. MellisaAlfaro says:

     United Kingdom

    Golden Review Award: 3 From Our UsersUsed to replace same , fairly straightforward changeover, have fitted before so I know they’re are really useful and give a good 15 litres of hot water ,I’d recommended

  6. Anonymous says:

     United Kingdom

    Used to replace same , fairly straightforward changeover, have fitted before so I know they’re are really useful and give a good 15 litres of hot water ,I’d recommended

  7. Anonymous says:

     United Kingdom

    Golden Review Award: 4 From Our UsersBought this to give us hot water in an old cottage without running the emersion heater ,left it set on economy and has given us all the hot water we have needed so far .