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Product Brochure

Product Brochure
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Product Brochure

Product catalog summary
Key Advantages
  • World Class Manufacturing: OSO water heaters are produced in Norway using high-quality stainless steel.
  • Low Weight: Made with high tensile strength stainless steel alloy for reduced weight and enhanced corrosion resistance.
  • Heat Retention: ECO Foam insulation improves heat retention by 30%, saving approximately 450 kWh annually.
  • Efficiency and Capacity: Offers up to 20% more hot water than competitors, designed for longevity and energy efficiency.
  • Corrosion Resistance: Utilizes laser welding and unique procedures for high corrosion resistance.
  • Safety: Undergoes rigorous safety tests, including pressure and electric component testing.
  • Environmental Procedures: Over 60% of materials are recycled, with no harmful emissions during production.
  • Warranty: 10-year guarantee on stainless steel pressure vessels, 2-year on electric components.
Product Specifications
  • Super Standard: Hidden connections, adjustable mixing valve, low heat loss, available in various capacities with a 10-year warranty.
  • Super Expansion: Integrated expansion solution, reducing installation time, similar features to Super Standard.
  • Super Xpress: Heats water three times faster with dual immersion heaters, suitable for limited installation height.
  • Super Agri: Designed for tough environments with stainless steel casing and high-temperature capabilities.
  • Mini RM: Compact 5-liter heater with a 6-minute recovery time, suitable for under-sink installation.
  • Slimline RD: Compact design for tight spaces, wall mounting options, 10-year warranty.
Technical Data and Warranty
  • Features pioneering design with hidden connections and stainless steel construction for lightweight handling.
  • 10-year warranty on stainless steel inner cylinder and OSO ECO Foam insulation.
Wallsmart - W
Ideal for bathrooms and tight spaces, IP 44 classification for wet environments, slim diameter of 430mm, factory-fitted inlet control valve, insulated with OSO ECO Foam, 10-year warranty.
Floorsmart - RL / RRL
Space-saving design for attics, basements, or saunas, 60 cm installation height, all connections on one side, insulated with OSO ECO Foam, 10-year warranty.
Super Coil - SC
Designed for use with boilers, hidden connections, factory-fitted mixing valve, lightweight duplex stainless steel construction, insulated with OSO ECO Foam, 10-year warranty.
Delta Gas - RI
For gas boilers up to 25 kW, stainless steel coil, optional electric heating element, low heat loss with OSO ECO Foam, ERP class A certified, 10-year warranty.
Delta Sun - RI SD
For solar energy, handles up to 8m² solar collectors, electric booster, OSO ECO Foam insulation, ERP class A certified, 10-year warranty.
Delta Geo - RI HP
For heat pumps, provides up to 60% of annual DHW requirements, large stainless steel heating coil, electric heater, OSO ECO Foam insulation, 10-year warranty.
Delta Twin Coil - RI TC
Combines low- and high-temperature energy sources, two heating coils, OSO ECO Foam insulation, 10-year warranty.
Optima Coil - EPC
Tank-in-tank construction for heat pumps up to 12 kW, integrated buffer tank, OSO ECO Foam insulation, 10-year warranty.
Overview: Detailed technical specifications and features of tank-in-tank units for heat pumps and solar collectors, optimizing energy efficiency and minimizing heat loss.
Specifications: Designed for heat pumps up to 12kW and solar collectors up to 12m², efficient heat transfer and energy storage.
Key Features: Integrated buffer tanks, electric backup heaters, OSO ECO Foam insulation, separate sensor pockets.
Product Variants:
  • EPCI 360: 1.8m² heating coil for maximum heat transfer.
  • EPTC 400: Twin coils for multiple energy sources.
  • EPTRC 400: Allows for a third energy source.
Accu Series: Buffer tanks for heat pumps and solar collectors, preventing excessive start-stops, available with or without electric booster heaters.
Installation and Accessories: Fix assembly centrals simplify installation, suitable for systems up to 20kW.
Conclusion: Engineered for efficient and reliable heating solutions, focusing on energy efficiency and environmental sustainability.
Overview: Detailed specifications of large capacity units for DHW storage and heating, suitable for integration with various heat sources.
Maxi Units: Stainless steel pressure vessels for large systems, capable of withstanding up to 10 bar pressure.
Maxi Turbo: External plate heat exchanger for large hot water demands, customizable.
Maxi Standard: Electric immersion heaters, available in stainless steel or copper-lined steel.
Maxi Combi: Dual functionality with electric immersion heaters and integrated heating coils.
Maxi Eco: Designed for heat pumps, large heating coil for efficient heat transfer.
Maxi Buffer: For solar collector installations, pre-heating capabilities.
Maxi Accu: Thermal stores for heat pumps and solar collectors.
Maxi Marine: Designed for marine applications, robust construction.
Technical Specifications: Includes volume, dimensions, heat-up time, heat loss, and weight.
Overview: Information about OSO's Maxi Marine units and OEM products, focusing on marine applications and energy systems.
Maxi Marine Units: Designed for marine applications, stainless steel or copper-lined steel, durable and minimal maintenance.
OEM Products: For alternative energy sources, customized for efficient heat transfer and low heat loss.
Solar Collectors: Designed to optimize solar energy use, handle up to 8m² of solar collectors.
Boilers: Hidden connections, lightweight, space-efficient.
Multiple Energy Sources: OEM Twin Coil units for solar collectors, heat pumps, and gas boilers.
Tank-in-Tank Products: For heat pumps, optimal working conditions and energy efficiency.
Environmental Considerations: Emphasizes environmentally friendly manufacturing, low GWP and ODP figures.
Contact Information: OSO Hotwater AS, Norway.
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Catalog excerpts

Product Brochure-1

Stainless steel water heaters

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Product Brochure-2

Key advantages World Class Manufacturing Made in Norway Superior Stainless Steel Quality MINIMUM HEAT LOSS OSO is engaged in continuous improvement to our “ECO Foam” insulation. This environmentally friendly (uses water as blowing agent) insulation solution provides optimum heat-retention capabilities. The insulation capacity is improved by 30% from previous materials. For an average household this means a reduction in energy use of approx. 450 kWh annually when switching to an OSO product. Product advantages EXTREMELY LOW WEIGHT As the first water heater manufacturer in Scandinavia OSO started...

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Product Brochure-3

C O N T E N T S Direct electric water heaters • Key advantages with OSO products • Contents • Super Standard S • Super Expansion SE • Super Xpress SX • Super Agri SA • Mini RM5 • Slimline RD • Wallsmart W • Floorsmart RL / RRL Indirect water heaters • Super Coil • Delta Gas • Delta Sun • Delta Geo • Delta Twin Coil • Optima Coil • Optima Coil Inside • Optima Twin Coil • Optima Triple Coil • Accu • Accu Coil • Fix SC RI RI SD RI HP RI TC EPC EPCI EPTC EPTRC 50R / 50RE 50RC / 50RCE MX18 / PV12 Commercial water heaters • Maxi 17R / 17S • Maxi Turbo 17R / 17S • Maxi Standard 17RE • Maxi Combi 17RVE...

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Product Brochure-4

Super Standard - S - unique in every way Unique pioneering design The Super Standard is the ultimate direct electric hot water cylinder, with distinctive design features. Ease of installation combined with all connections hidden makes the Super Standard fit seamlessly in every environment. Based on OSO’s experience through 80 years and with more than 3 million units sold, the Super series is the new benchmark. • Pioneering design features with all connections hidden and insulated The insulated, easily removable top lid hides all connections to the cylinder. The factory fitted mixing valve provides...

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Product Brochure-5

Fully integrated expansion solution The Super Expansion is the ultimate direct electric hot water cylinder, with distinctive design features. The unique, factory fitted and integrated expansion solution drastically reduces installation time. All connections hidden makes the Super Expansion fit seamlessly in every environment. Based on OSO’s experience through 80 years and with more than 3 million units sold, the Super series is the new benchmark. • Pioneering design features with all connections hidden and insulated The insulated, easily removable top lid hides the expansion solution as well...

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Product Brochure-6

Super Xpress - SX - 3 x faster Smaller and more efficient The Super Xpress is the ultimate direct electric hot water cylinder, with distinctive design features. Utilizing two electric immersion heaters and flip-flop thermostat, the Super Xpress is ready for use in just 1,5 hours – 1/3 of normal heat-up time – without using more electricity. Ease of installation combined with all connections hidden makes the Xpress fit seamlessly in every environment. Based on OSO’s experience through 80 years and with more than 3 million units sold, the Super series is the new benchmark. The Xpress is the ideal...

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Product Brochure-7

Super Agri - SA - the ultimate for tough conditions Simply tougher The Super Agri is the ultimate direct electric hot water cylinder, with distinctive design features. Made to withstand the toughest of exterior environments with outer casing in stainless steel, the Super Agri is ideal for agricultural use, but is also a stylish alternative to the modern home. Ease of installation combined with all connections hidden makes the Agri fit seamlessly in every environment. Based on OSO’s experience through 80 years and with more than 3 million units sold, the Super series is the new benchmark. The...

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Product Brochure-8

Mini - RM - hot water in 10 minutes Simple undersink heater The Mini is a 5 liter point of use water heater, with an impressive 6 minute recovery time. The small size makes the Mini ideal for under sink fitting in office buildings etc. where the central hot water supply is located at a distance. The Mini can be installed both vertically and horizontally. The Mini will be most efficient when fitted horizontally. Wall mounting bracket is provided with the cylinder. The Mini requires no expansion vessel, although an expansion relief valve for connection to a waste pipe is supplied. Domestic water...

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Product Brochure-9

Slimline - RD - ideal for tight spaces Min. 150 mm Wall bracket Easy to place on wall or floor The Slimline is only 430mm in diameter, making the cylinder ideal for installation in tight spaces. Wall mounting bracket is included, and makes the Slimline extremely versatile. The Slimline series cylinder will fit into the most compact of spaces thanks to its 430 mm. diameter. Slimline is simple to install, with all connections on top of the cylinder. The factory fitted mixing valve provides adjustable hot water temperature, non-return and stop valve. The Slimline can also be wall mounted with the...

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Product Brochure-10

Wallsmart - W - ideal for bathrooms For tight spaces and wet environments This wall-mounted unit has all connections easily accessible on the factory fitted inlet control valve underneath. Wallsmart is also IP 44 classified for unprotected fitting in bathrooms and is insulated with ECO Foam. Slim diameter of 430mm makes the Wallsmart ideal for installation in tight spaces. • Ideal for limited hot water requirements and installation in tight spaces Wallsmart is mounted on the wall with the supplied bracket. All connections for the installer are located underneath the unit for easy access. The...

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Product Brochure-11

Special locations with minimal height The Floorsmart is designed for space saving installations in attics, basements or saunas (the RRL). The unit comes in two configurations, where the RRL is specifically designed for saunas. In normal usage, the Floorsmart provides just as much hot water as a vertical unit, but when large amounts of hot water is required for baths etc., a vertical unit is the ideal choice. All connections are conveniently located in one side of the unit for easy installation. The Floorsmart requires just 60 cm. installation height, and fits in spaces with low ceilings. The...

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All OSO Hotwater catalogs and technical brochures

Archived catalogs

  1. 15 SERIES

    2  Pages

  2. MINI RM5

    2  Pages

  3. 21 SERIES

    2  Pages

  4. SUPER S

    4  Pages

  5. DUALSTREAM

    6  Pages

  6. 20 SERIES

    4  Pages

  7. 17 SERIES

    2  Pages

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.