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Product catalog summary

Overview: OSO is a leading manufacturer of stainless steel unvented hot water cylinders, known for quality and innovation. Based in Norway, OSO has supplied over 2 million cylinders globally since 1970 and has received awards for welding technology and eco-friendly production.

Product Range: OSO offers direct and indirect unvented calorifiers with capacities from 505 to 8846 litres for industrial and commercial use. The guide provides recommendations for cylinder selection based on property size and requirements.

Key Features:

High-pressure showers and excellent flow rates.
25-year warranty on stainless steel inner vessel.
Rapid re-heat times due to large heating coils.
Energy-efficient with CFC-free insulation.
Compact design with internal expansion, reducing installation time.
Supplied with necessary valves and controls.
Direct mains supply eliminates the need for cold-water storage.
Approved by British Gas, BBA, WRAS, and CE listed.

Specifications:

Material: Stainless steel F18MT, 1.35mm thick.
Hot water connection: 22mm compression fitting.
Pressure tested to 16 bar, with a maximum working pressure of 8 bar.
Insulation: CFC-free fire retardant, 40-50mm.
Electrical: Thermostat adjustable between 45°C & 75°C, 3kW immersion heater.

System Requirements:

Compliance with IEE Wiring Regulations.
Mains water supply of 20 litres per minute at 1 bar dynamic pressure.
Installation must follow G3 building regulations.

Warranty: The stainless steel inner vessel is guaranteed for 25 years against defects. Other parts have a 2-year warranty. Conditions include proper installation, regular maintenance, and compliance with EU water standards.

Catalog excerpts

- builds water heaters for the future STAINLESS STEEL MAINS PRESSURE UNVENTED CYLINDERS 20SB (4pp)

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- builds water heaters for the future Oso mains pressure unvented hot water cylinders have for ten years been at the forefront of quality and technological innovation in the unvented cylinder industry. Oso is firmly established as a key supplier in this rapidly expanding sector. Based in Norway, Oso is a global leader in the production of stainless steel unvented cylinders having supplied over 2 million cylinders world wide since l970. The company has won numerous international awards for stainless steel welding technology and for environmentally friendly production methods. Direct and indirect...

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CYLINDER SPECIFICATION • Cylinder material - stainless steel F18MT 1.35mm thick • Hot water connection - 22mm compression fitting (removable dip tube) • OSO cylinders are designed to be installer friendly “Multibloc” valve supplies loose for on-site installation. Comprises line strainer, 2.1 bar pressure reducing valve, balanced cold water port, non-return valve, 8 bar expansion relief valve. • Internal secondary water expansion against air pocket. • Temperature & pressure relief valve - factory fitted, set to 90°C & 10 bar. • Every cylinder is pressure tested to 16 bar and has a safe maximum...

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OSO Hotwater (UK) Limited E15 Marquis Court,Team Valley Trading Estate Gateshead,Tyne & Wear NE11 0RU • Tel. (0191) 482 0800 • Fax. (0191) 491 3655 Email. [email protected] • [email protected] [email protected] •Web www.oso-hotwater.com DIRECT INDIRECT MODEL DIMENSIONS AND KEY Product Capacity Dimensions Approx 3kw Floor Wall Connection dimensions order litres mm weight Elements standing fixing from base unit in mm code full kg factory bracket†† fitted Direct H D A 1 2 5 12 13 20 RD 100 100 720 580 40 127 1 Yes Yes†† - - 465 345 110 20 RD 125 125 900 580 40 159...

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Catalog excerpts

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