Cased Vented Hot Water Cylinders


World Heat Cylinders offers a robust range of cased hot water units for vented systems, providing a traditional and reliable solution for gravity-fed hot water systems. Furthermore, these cylinders combine proven vented technology with a durable, aesthetically pleasing white gloss cased finish and high-performance injection insulation, available at an additional cost for enhanced thermal efficiency and a neat installation.


White cased vented hot water cylinder by WH Cylinders with high-efficiency insulation.

White cased vented cylinder by WH Cylinders, with high-efficiency insulation for traditional hot water systems.


Key Features & Benefits of Our Cased Vented Units


  • Durable White Gloss Casing: Provides a clean, professional finish that is also easy to wipe down and maintain, protecting the cylinder and insulation.
  • High-Efficiency Injection Insulation: We use high-density polyurethane foam insulation. Consequently, this significantly reduces heat loss, improves energy efficiency, and lowers running costs compared to un-insulated or poorly insulated alternatives.
  • Traditional Vented System Compatibility: Our cased units for vented systems are specifically designed for open-vented plumbing systems, commonly found in many UK properties. They are typically fed by a cold water storage cistern (header tank).
  • Robust Construction: Manufactured to exacting standards using high-quality materials (steel or stainless steel, specify material when enquiring) for a long and reliable service life.
  • Range of Sizes: While specific stock sizes vary, we can often accommodate requests for various capacities suitable for different household demands.
  • Bespoke Options: As with many of our products, if you have specific dimensional or connection requirements for a cased unit of this type, please discuss these with our team.


Typical Applications for These Cased Units


These cased hot water storage units are an excellent choice for:

  • Installations where a traditional, gravity-fed hot water system is preferred or existing.
  • Properties requiring a durable and aesthetically pleasing finish for the hot water cylinder.
  • Locations where improved insulation and energy efficiency for a vented system are desired.
  • Replacement of older, less efficient vented cylinders.

These units are suitable for domestic properties and some light commercial applications where a vented system is appropriate.



Quality and Service You Can Trust


At WH Cylinders, we pride ourselves on the quality of our manufacturing and the expertise of our team. Indeed, from design engineers to skilled fabricators, we are committed to providing reliable hot water solutions. Therefore, our cased units for vented applications with optional injection insulation offer a blend of proven technology and modern thermal performance.



Enquire About Our Cased Hot Water Units


For more information on our cased vented hot water unit range, including available sizes, specific material options (steel or stainless steel for the inner vessel), and pricing for the cased and insulated finish, please contact one of our experienced technical sales engineers. They can provide expert advice and help you select the ideal solution for your needs.

Contact us today on 0161 343 8610, email sales@whcylinders.co.uk, or visit our contact page.