Unvented Water Heaters

Whether you have a residential or commercial property, an unvented water heater is an excellent solution for your heated water needs. The difference between an unvented water heater and a vented heater is that unvented boilers utilise a sealed system. Therefore, this particular system is dependent on the installation of an expansion vessel. The unvented water heater is cost-effective and is ideal for small or medium-sized businesses due to the flexibility of installation. The water heater produces mains pressure hot water and a balanced supply of output to each outlet it supplies. There is also no need for a separate cold water cistern. Each manufacturer produces heaters designed to operate reliably under the increased pressure produced by high temperatures.

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  1. main-15l-22kw-undersink-unvented-water-heater-94050702

    Main 15L 2.2kW Undersink Unvented Water Heater - 94050702

    Was £ 118.80

    Save 8%

    £ 108.89

    52 In Stock
  2. ariston-andris-lux-10l-2kw-undersink-unvented-water-heater

    Ariston Andris Lux 10L 2kW Undersink Unvented Water Heater - 3100306

    Was £ 129.99

    Save 8%

    £ 120.00

    69 In Stock
  3. elson-unvented-water-heater-euv10

    Elson Unvented Water Heater EUV10

  4. main-10l-22kw-undersink-unvented-water-heater-94050701

    Main 10L 2.2kW Undersink Unvented Water Heater 94050701

  5. ariston-andris-lux-15l-2kw-undersink-unvented-water-heater

    Ariston Andris Lux 15L 2kW Undersink Unvented Water Heater - 3100310

    Was £ 140.15

    Save 5%

    £ 133.28

    101 In Stock
  6. ariston-andris-lux-10l-3kw-undersink-unvented-water-heater

    Ariston Andris Lux 10L 3kW Undersink Unvented Water Heater - 3100303

  7. ariston-andris-lux-10l-3kw-oversink-unvented-water-heater

    Ariston Andris Lux 10L 3kW Oversink Unvented Water Heater - 3100302

    Was £ 154.00

    Save 10%

    £ 139.20

    In Stock
  8. ariston-andris-lux-eco-10l-25kw-undersink-unvented-water-heater

    Ariston Andris Lux Eco 10L 2.5kW Undersink Unvented Water Heater - 3100718

  9. ariston-andris-lux-eco-10l-25kw-oversink-unvented-water-heater

    Ariston Andris Lux Eco 10L 2.5kW Oversink Unvented Water Heater - 3100717

  10. ariston-andris-lux-15l-3kw-oversink-unvented-water-heater

    Ariston Andris Lux 15L 3kW Oversink Unvented Water Heater - 3100308

    Was £ 177.54

    Save 15%

    £ 151.40

    22 In Stock
  11. ariston-andris-lux-15l-3kw-undersink-unvented-water-heater

    Ariston Andris Lux 15L 3kW Undersink Unvented Water Heater - 3100309

    Was £ 171.81

    Save 11%

    £ 152.40

    37 In Stock
  12. ariston-andris-lux-eco-15l-25kw-undersink-unvented-water-heater

    Ariston Andris Lux Eco 15L 2.5kW Undersink Unvented Water Heater - 3100722

  13. ariston-andris-lux-eco-15l-25kw-oversink-unvented-water-heater

    Ariston Andris Lux Eco 15L 2.5kW Oversink Unvented Water Heater - 3100721

  14. zip-aquapoint-iii-under-sink-unvented-5l-water-heater

    Zip Aquapoint III Under Sink Unvented 5L Water Heater - AP3/05

    Was £ 243.54

    Save 11%

    £ 215.99

    In Stock
  15. santon-aquaheat-unvented-water-heaters

    Santon Aquaheat Unvented Water Heaters - 94050001

  16. stiebel-eltron-shc-unvented-undersink-water-heater

    Stiebel Eltron SHC Unvented Undersink Water Heater - 235232

  17. santon-aquaheat-10l-22kw-unvented-water-heater

    Santon Aquaheat 10L 2.2kW Unvented Water Heater - 94050002

  18. zip-aquapoint-iii-over-sink-unvented-water-heater-5-litre

    Zip Aquapoint III Over Sink Unvented Water Heater 5 Litre - AP3/05/OB

  19. zip-aquapoint-iii-under-sink-unvented-10l-water-heater

    Zip Aquapoint III Under Sink Unvented 10L Water Heater - AP3/10

    Was £ 295.79

    Save 14%

    £ 254.15

    6 In Stock
  20. zip-aquapoint-iii-under-sink-unvented-15l-water-heater

    Zip Aquapoint III Under Sink Unvented 15L Water Heater - AP3/15

    Was £ 310.78

    Save 15%

    £ 262.80

    11 In Stock
  21. santon-aquaheat-15l-22kw-unvented-water-heater

    Santon Aquaheat 15L 2.2kW Unvented Water Heater - 94050003

  22. zip-aquapoint-iii-over-sink-unvented-water-heater-15-litre

    Zip Aquapoint III Over Sink Unvented Water Heater 15 Litre - AP3/15/OB

  23. zip-aquapoint-iii-over-sink-unvented-water-heater-10-litre

    Zip Aquapoint III Over Sink Unvented Water Heater 10 Litre - AP3/10/OB

  24. stiebel-eltron-shc-15-gb-unvented-undersink-water-heater

    Stiebel Eltron SHC 15 GB Unvented Undersink Water Heater - 234407

  25. heatrae-sadia-hotflo-electric-unvented-water-heaters

    Heatrae Sadia Hotflo Electric Unvented Water Heaters - 95050148

  26. ariston-andris-lux-30l-3kw-oversink-unvented-water-heater

    Ariston Andris Lux 30L 3kW Oversink Unvented Water Heater - 3820017

  27. heatrae-sadia-hotflo-15-litre-22kw-unvented-water-heater

    Heatrae Sadia Hotflo 15 Litre 2.2kW Unvented Water Heater - 95050149

  28. redring-unvented-under-sink-water-heater-15l-mw15

    Redring Unvented Under Sink Water Heater 15L 3kW - MW15

  29. ariston-andris-lux-eco-30l-25kw-oversink-unvented-water-heater-inc-kit-a-b-c

    Ariston Andris Lux Eco 30L 2.5kW Oversink Unvented Water Heater (Inc Kit A, B & C) - 3820018

  30. santon-aqualine-unvented-water-heaters

    Santon Aqualine Unvented Water Heaters - 94050012

  31. zip-varipoint-ii-under-sink-unvented-10l-water-heater

    Zip Varipoint II Under Sink Unvented 10L Water Heater - VP103UB

  32. hyco-powerflow-smart-80l-3kw-unvented-water-heater

    Hyco Powerflow Smart 80L 3KW Unvented Water Heater - PF80S

  33. zip-varipoint-ii-unvented-10l-over-sink-water-heater

    Zip Varipoint II Unvented 10L Over Sink Water Heater - VP103

main-15l-22kw-undersink-unvented-water-heater-94050702
Main 15L 2.2kW Undersink Unvented Water Heater - 94050702
Main
Save 8% Was £118.80
Main
£108.89 inc
VAT
52 In Stock
ariston-andris-lux-15l-2kw-undersink-unvented-water-heater
Ariston Andris Lux 15L 2kW Undersink Unvented Water Heater - 3100310
Ariston
Save 5% Was £140.15
Ariston
£133.28 inc
VAT
101 In Stock
ariston-andris-lux-15l-3kw-oversink-unvented-water-heater
Ariston Andris Lux 15L 3kW Oversink Unvented Water Heater - 3100308
Ariston
Save 15% Was £177.54
Ariston
£151.40 inc
VAT
22 In Stock
ariston-andris-lux-15l-3kw-undersink-unvented-water-heater
Ariston Andris Lux 15L 3kW Undersink Unvented Water Heater - 3100309
Ariston
Save 11% Was £171.81
Ariston
£152.40 inc
VAT
37 In Stock
zip-aquapoint-iii-under-sink-unvented-5l-water-heater
Zip Aquapoint III Under Sink Unvented 5L Water Heater - AP3/05
Zip
Save 11% Was £243.54
Zip
£215.99 inc
VAT
In Stock
zip-aquapoint-iii-under-sink-unvented-10l-water-heater
Zip Aquapoint III Under Sink Unvented 10L Water Heater - AP3/10
Zip
Save 14% Was £295.79
Zip
£254.15 inc
VAT
6 In Stock
zip-aquapoint-iii-under-sink-unvented-15l-water-heater
Zip Aquapoint III Under Sink Unvented 15L Water Heater - AP3/15
Zip
Save 15% Was £310.78
Zip
£262.80 inc
VAT
11 In Stock
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