The Neptune Unvented Stainless Steel Cylinder benefits from an attractive steel finish, slim line design and top of the range insulation. The Neptune Cylinder is an unvented hot water storage system which is the perfect accompaniment to the Fusion or Slim Jim Electric Boiler ranges. Like all Electric Heating Company items, the Neptune collection is manufactured to the highest quality and offers high performance for the demands of a busy home. With fast flow rates and energy insulation, the Neptune meets all the criteria for modern fast flow applications. The Neptune Indirect cylinder is suitable for providing hot water with a wide variety of boiler types such as gas, electric, oil and LPG.