Unvented Cylinders

The unvented hot water cylinder is a firm favourite among homeowners who possess a pressurised central heating system. Supplied with either an external or built-in expansion vessel, an unvented cylinder is particularly desirable as hot water is delivered under pressure and does not require a cumbersome gravity-fed water tank. New unvented hot water cylinders can handle your hot water pressure demands quickly and safely while offering manufacturer's warranties of up to 25 years. Please choose from our extensive range of unvented cylinders from all the leading brands today.

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  1. direct-unvented-cylinders

    Direct Unvented Cylinders

    170 products
    From £343.69
  2. Indirect Unvented Cylinders

    Indirect Unvented Cylinders

    295 products
    From £286.20
  3. Horizontal Unvented Cylinders

    Horizontal Unvented Cylinders

    18 products
    From £890.41
  4. Pre Plumbed Unvented Cylinders

    Pre Plumbed Unvented Cylinders

    81 products
    From £1,091.99
  5. Slimline Unvented Cylinders

    Slimline Unvented Cylinders

    79 products
    From £620.66
  6. Solar Unvented Cylinders

    Solar Unvented Cylinders

    65 products
    From £760.20

  7. Filter Results
  8. joule-cyclone-platinum-unvented-90l-direct-cylinder

    Joule Cyclone Platinum Unvented 90L Direct Cylinder - TCEMVD-0090LFD

  9. joule-cyclone-platinum-unvented-125l-direct-standard-cylinder

    Joule Cyclone Platinum Unvented 125L Direct Standard Cylinder - TCEMVD-0125LFD

    Was £ 584.05

    Save 11%

    £ 518.98

    In Stock
  10. joule-cyclone-platinum-unvented-170l-direct-standard-cylinder

    Joule Cyclone Platinum Unvented 170L Direct Standard Cylinder - TCEMVD-0170LFD

  11. main-direct-unvented-150l-hot-water-cylinder

    Main Direct Unvented 150L Hot Water Cylinder - 720636001

  12. main-direct-unvented-170l-hot-water-cylinder

    Main Direct Unvented 170L Hot Water Cylinder - 720636101

  13. main-direct-unvented-120l-hot-water-cylinder

    Main Direct Unvented 120L Hot Water Cylinder - 720635901

  14. joule-invacyl-unvented-90l-direct-cylinder-standard-stainless-steel-trbmvd-0090lfc

    Joule Invacyl Unvented 90L Direct Cylinder Standard Stainless Steel - TRBMVD-0090LFC

  15. joule-invacyl-unvented-120l-direct-cylinder-standard-stainless-steel-trbmvd-0120lfb

    Joule Invacyl Unvented 120L Direct Cylinder Standard Stainless Steel - TRBMVD-0120LFB

  16. joule-cyclone-platinum-unvented-150l-direct-standard-cylinder

    Joule Cyclone Platinum Unvented 150L Direct Standard Cylinder - TCEMVD-0150LFD

  17. joule-cyclone-platinum-unvented-200l-direct-short-cylinder

    Joule Cyclone Platinum Unvented 200L Direct Short Cylinder - TCEMVD-0200NFC

  18. joule-invacyl-unvented-150l-direct-cylinder-standard-stainless-steel-trbmvd-0150lfb

    Joule Invacyl Unvented 150L Direct Cylinder Standard Stainless Steel - TRBMVD-0150LFB

  19. joule-cyclone-platinum-unvented-150l-indirect-standard-cylinder

    Joule Cyclone Platinum Unvented 150L Indirect Standard Cylinder - TCEMVI-0150LFB

  20. joule-invacyl-standard-in-direct-unvented-cylinder-90-litre-stainless-steel-trbmvi-0090lfc

    Joule Invacyl Standard In-Direct Unvented Cylinder 90 Litre - Stainless Steel - TRBMVI-0090LFC

  21. joule-invacyl-unvented-120l-indirect-cylinder-standard-trbmvi-0120lfb

    Joule Invacyl Unvented 120L Indirect Cylinder Standard-TRBMVI-0120LFB

  22. joule-cyclone-platinum-unvented-125l-indirect-standard-cylinder

    Joule Cyclone Platinum Unvented 125L Indirect Standard Cylinder - TCEMVI-0125LFB

  23. joule-invacyl-unvented-180l-direct-cylinder-standard-stainless-steel-trbmvd-0180lfb

    Joule Invacyl Unvented 180L Direct Cylinder Standard Stainless Steel - TRBMVD-0180LFB

  24. joule-cyclone-unvented-170l-indirect-standard-cylinder

    Joule Cyclone Unvented 170L Indirect Standard Cylinder - TCEMVI-0170LFB

  25. joule-cyclone-platinum-unvented-200l-direct-standard-cylinder

    Joule Cyclone Platinum Unvented 200L Direct Standard Cylinder - TCEMVD-0200LFC

  26. joule-invacyl-unvented-210l-direct-cylinder-standard-stainless-steel-trbmvd-0210lfc

    Joule Invacyl Unvented 210L Direct Cylinder Standard Stainless Steel - TRBMVD-0210LFC

  27. main-indirect-unvented-120l-hot-water-cylinder

    Main Indirect Unvented 120L Hot Water Cylinder - 5133561

  28. joule-cyclone-platinum-unvented-250l-direct-standard-cylinder

    Joule Cyclone Platinum Unvented 250L Direct Standard Cylinder - TCEMVD-0250LFC

  29. joule-cyclone-unvented-200l-indirect-standard-cylinder

    Joule Cyclone Unvented 200L Indirect Standard Cylinder - TCEMVI-0200LFC

    Was £ 681.04

    Save 8%

    £ 623.95

    In Stock
  30. main-direct-unvented-210l-hot-water-cylinder

    Main Direct Unvented 210L Hot Water Cylinder - 720636201

  31. main-indirect-unvented-150l-hot-water-cylinder

    Main Indirect Unvented 150L Hot Water Cylinder - 5133562

  32. warmflow-direct-unvented-120l-stainless-steel-cylinder

    Warmflow Nero Direct Unvented 120L Stainless Steel Hot Water Cylinder - DI120UV

  33. main-indirect-unvented-170l-hot-water-cylinder

    Main Indirect Unvented 170L Hot Water Cylinder - 5133563

    Was £ 745.08

    Save 11%

    £ 665.23

    11 In Stock
  34. joule-invacyl-unvented-150l-indirect-cylinder-standard-trbmvi-0150lfb

    Joule Invacyl Unvented 150L Indirect Cylinder Standard-TRBMVI-0150LFB

  35. joule-cyclone-platinum-unvented-250l-direct-standard-short-cylinder

    Joule Cyclone Platinum Unvented 250L Direct Standard Short Cylinder - TCEMVD-0250NFC

  36. fabdec-excelsior-i-3s-80l-direct-unvented-cylinder

    Fabdec Excelsior i 3S 80L Direct Unvented Cylinder - WXI-0080-D1-AG

  37. main-indirect-unvented-210l-hot-water-cylinder

    Main Indirect Unvented 210L Hot Water Cylinder - 5133564

    Was £ 769.18

    Save 11%

    £ 686.28

    35 In Stock
  38. joule-cyclone-platinum-unvented-200l-indirect-short-cylinder

    Joule Cyclone Platinum Unvented 200L Indirect Short Cylinder - TCEMVI-0200NFC

  39. joule-invacyl-unvented-180l-indirect-cylinder-standard-trbmvi-0180lfb

    Joule Invacyl Unvented 180L Indirect Cylinder Standard-TRBMVI-0180LFB

    Was £ 815.28

    Save 15%

    £ 693.00

    In Stock
  40. joule-cyclone-platinum-unvented-250l-indirect-standard-cylinder

    Joule Cyclone Platinum Unvented 250L Indirect Standard Cylinder - TCEMVI-0250LFC

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