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Instantaneous (Tankless) Water Heaters

Instantaneous water heaters sound like the perfect water heater - limitless hot water on demand, no wait time, no water stored, compact and easy to install.

All of this is true, but there are also some limitations, such as the number of simultaneous outlets, proximity to the outlet, and the need for its own cable from the consumer unit. Most instant or on-demand units are purpose-built to serve 1,2, or 3 basins, but there are some just about powerful enough to handle a shower. At single-phase power, there are solutions for everything up to but not including a bath - please read here for more on that.

To make sure they will fit the requirement you have in mind, why not run through the Product Advisor to help you choose the most appropriate appliance by clicking on the image below:

Instantaneous Water Heaters

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  1. Hyco 3kW Manual Instantaneous Hand Wash HW30M
    SKU: EDDHYCO003
    £66.04 £55.03
  2. Hyco 3kW Automatic Instantaneous Hand Wash HW30A
    SKU: EDDHYCO004
    £103.63 £86.36
  3. Hyco Rho 4.4kW Instantaneous Inline Water Heater IN44
    SKU: EDDHYCO001
    £125.40 £104.50
  4. Hyco Rho 6kW Instantaneous Inline Water Heater IN60
    SKU: EDDHYCO002
    £140.24 £116.87
  5. Triton Instaflow 5.4kW Instantaneous Water Heater SPINSF05SW
    SKU: EDDTRITON05SW
    £166.80 £139.00
  6. Triton Instaflow 7.7kW Instantaneous Water Heater SPINSF07MW
    SKU: EDDTRITON07MW
    £178.80 £149.00
  7. Triton Instaflow 10.1kW Instantaneous Water Heater SPINSF10MW
    SKU: EDDTRITON10MW
    £202.80 £169.00
  8. Hyco Aquila 9.6kW Instantaneous Inline Water Heater IN96T
    SKU: EDDHYCO32
    £245.59 £204.66
  9. Trianco Aztec Instantaneous Water Heater 8kW 4051
    SKU: EDDTRIANCOS05
    £262.80 £219.00
  10. Trianco Aztec Instantaneous Water Heater 12kW 4052
    SKU: EDDTRIANCOS06
    £282.00 £235.00
  11. Stiebel Eltron DEM3 3.5kW Mini Instantaneous Water Heater 231001
    SKU: EDDSTIEBEL4
    £286.14 £238.45
  12. Stiebel Eltron DEM4 4.4kW Mini Instantaneous Water Heater 231002
    SKU: EDDSTIEBEL5
    £286.14 £238.45
  13. Stiebel Eltron DEM6 5.7kW Mini Instantaneous Water Heater 231215
    SKU: EDDSTIEBEL6
    £286.14 £238.45
  14. Zip ES3 Inline Instantaneous Handwash
    SKU: EDDZIPES3
    £289.20 £241.00
  15. Heatrae Sadia Multipoint 7kW Instantaneous Water Heater 95050424
    SKU: EDDSADIA69
    £309.54 £257.95
  16. Heatrae Sadia Multipoint 9kW Instantaneous Water Heater 95050425
    SKU: EDDSADIA70
    £309.54 £257.95
  17. Zip ES4 Inline Instantaneous Handwash
    SKU: EDDZIPES4
    £312.00 £260.00
  18. Zip ES6 Inline Instantaneous Handwash
    SKU: EDDZIPES6
    £343.20 £286.00
  19. Zip CEX-U Instantaneous Water Heater CEXU
    SKU: EDDZIPCEXU
    £370.58 £308.82
  20. Zip CEX-O Instantaneous Water Heater CEXO
    SKU: EDDZIPCEXO
    £386.88 £322.40
  21. Zip ES3/NC Inline Instantaneous Handwash
    SKU: EDDZIPM35
    £457.20 £381.00
  22. Zip ES4/NC Inline Instantaneous Handwash
    SKU: EDDZIPM36
    £463.04 £385.87
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