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Wijas Perfect below sink water heaters

The Wijas water heater is the smallest on the UK market, measuring just 152 x 135 x 72mm.  Click here to see how small.

These non-vented heaters easily fit under a sink or in a cabinet to provide point of use water heating.  They are extremely energy efficient too and you don't waste lots of running water waiting for the hot water to arrive.  They can be used with your ordinary taps and therefore providing a much neater and easier solution to a wall mounted over-sink heater.

  • The smallest heater on the UK market - only 152 x 135 x 72mm

  • Delivers instant warm water at point of use

  • Anti-scald safety technology

  • Heating element fully protected against limescale accumulation

  • Connects directly to mains supply 1BAR min pressure, using most types of standard taps. (Some hi-flow taps require a greater  flow rate than 3ltr per minute - check the makers tech info)

  • Energy efficient rating 98.2%

  • 2 year replacement warranty

  • CE approved


Three models are available - low 3.5kW, medium 4.5kW and high power 5.5kW.
Refer to the
FAQ or Technical sections for more information.  

Please be sure you are fully aware of their application before purchasing.

Perfect 3500B - 3.5kW model
Price: (£99.17+VAT)
£119.00 plus delivery

Customer rating:

See our reviews!

Perfect 4500B - 4.5kW model
Price: (£104.17+VAT)
£125.00 plus delivery

Customer rating:
What do you think of this product? Write a review here

Perfect 5500B - 5.5kW model  
Price: (£107.50+VAT)
£129.00 plus delivery

Customer rating:

What do you think of this product? Write a review here

We also sell refurbished units for a reduced price in our eBay Shop

Ascot Hygiene Combo Packs now available!

Our Combo Packs include one of our perfect water heaters, and a choice of a monobloc tap from £152.  

Click here for more information on this exclusive offer.

Optional extras

We also sell an optional flexible hose kit which will make fitting the below sink heaters easier.  The kit comprises of two WRAS approved 300mm x 10mm hoses with 1/2" BSP female connectors at both ends.  These hoses aren't normally stocked at your local DIY store or builders merchants.  One hose goes between the suppressing valve and the heater inlet, and the other hose goes between the heater outlet and the tap.  Refer to the
installation diagram for guidance.

Flexible hose kit
Price: (£7.67+VAT)
£9.20 plus delivery  

Customer rating: Not yet reviewed

Click to see our
Above-sink models

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