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OSO Hot Water Unvented Hot Water Cylinders

With 70 years of experience in the development of Water Heaters, you can be assured that OSO Unvented Hot Water Cylinders are made with quality in mind. OSO cylinders offer a number of features that make their products some of the most durable, stable, environmentally friendly and affordable stainless steel hot water cylinders in Europe.

Features:

  • High Efficiency and Capacity - The water temperature of Super Series water heaters is higher than most others, at 70°C. This higher temperature means more available hot water in a smaller unit.
  • Low Weight, High Strength - The use of Duplex Stainless Steel in OSO Super Series Unvented Hot Water Cylinders enables them to achieve a high tensile strength and durability, whilst also maintaining low weight.
  • Minimal Heat Loss - OSO Unvented Hot Water Cylinders use a specially developed, environmentally friendly 'ECO Foam' insulation that provides optimum insulation and ensures minimal heat loss.
  • High Corrosion Resistance - OSO Unvented Hot Water Cylinders use molybdenum enriched ferritic steel to achieve high corrosion resistance. The OSO Super Series Unvented Cylinders use a combination of Duplex Stainless Steel and laser welding for even higher corrosion resistance.
  • Environmental Concern - The environment has been one of OSO Hot Water's core business focuses for more than 40 years. OSO's own 'ECO Foundation', created in 1995, supports numerous environmental projects and dedicates a percentage of funds to these projects each year.
  • Certifications and Approvals - ISO 9001:2008/ISO 14001:2004/OHSAS 18001:2007 certificates.
  • 25 Years Warranty (Stainless Steel Cylinders) - The durability of OSO Stainless Steel Unvented Hot Water Cylinders means a confident 25 Year Warranty on Stainless Steel Cylinders. Conditions apply.  


Super Series COIL Indirect Unvented Cylinder

The OSO Hot Water Super Coil is the indirect solution within the Super Series range of Unvented Hot Water Cylinder. Features include: virtually pre-plumbed unit, low heat loss, secondary return, impressive heat up & recovery times and a 25 year guarantee.
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Super Series XPRESS Direct Unvented Cylinder

The OSO Hot Water Super Series Xpress is the direct solution within the Super Series range of Unvented Hot Water Cylinders. Features include: virtually pre-plumbed unit, low heat loss, secondary return, impressive heat up & recovery times and a 25 year guarantee.
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PowerCyl High Flow Indirect Unvented Cylinder

The PowerCyl High Flow Indirect Unvented Cylinder is the ideal solution for larger households where high pressures and flow rates are required. The cylinders come standard with 1" hot and cold connections to allow high flow rates and can operate at pressures as high as 5 bar.
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