History

Future

Values

How OSO Hotwater through 80 years have remained a family business.

The history of OSO Hotwater, and how it all started.

OSO products through 80 years of innovation until today.

Key figures for OSO Hotwater in Norway and internationally.

Our vision and mission, short-term and long-term goals.

The thoughts behind everything we do at OSO Hotwater.

The reasons behind OSO's success.

One of the first companies to put the environment on top of the agenda.

Safety with OSO's products as one of our core values.

Why OSO has chosen to invest in production in high cost Norway.

OSO's corporate culture and codes of conduct.

Our thoughts on the interaction between Man and Nature.

Why OSO always has been, and continues to be dedicated to the environment.

OSO's environment foundation with 500.000 GBP in capital.

One of the first companies to put the environment on top of the agenda.

How OSO affects the environment today.

OSO Hotwater has received numerous awards for its focus on the environment and cutting edge technology development.

With our focus on quality and the environment, it's only natural that we maintain ISO 9001 / 14001 and OHSAS 18001 certifications.

OSO's products are approved for most markets, see which agencies that recognize OSO's products.

DOMESTIC PRODUCTS

Direct Electric

Indirect Systems

Indirect

SC
RI SD
RI HP
RI TC
EPCI
RI F1
RI
ES

Help & Support

DESCRIPTION

Super Xpress SX

Neatest, most compact unvented cylinder available. Breaks new ground in cylinder design and performance.

Mini

Perfect for point of use “under sink” water heater. The 3kW element heats the capacity in less than 6 minutes.

Slimline RD

Slimline RD is only 430mm diameter and will fit into the most compact of spaces. Twin immersion heaters.

Wallsmart

Wallsmart is only 430mm diameter and designed to be fitted on wall. Bracket included.

SuperStream

OSO SuperStream uses an accumulator to boost the flow rate available to the hot and cold water taps.

Super Coil

Neatest, most compact unvented cylinder available. Breaks new ground in cylinder design and performance.

Solarcyl

Solarcyl unvented cylinder contains a solar heating coil and twin immersion elements for electric auxiliary heating.

Ecoline Geo

Ecoline Geo unvented cylinder contains a heating coil designed for heat pumps and immersion element for boosting temperature.

Solarcyl Twin Coil

Solarcyl Twin Coil unvented cylinder contains a solar heating coil and upper coil for indirect auxiliary heating using a boiler.

Optima

The Optima combines tank-in-tank advantages while providing heat pumps with ideal working conditions, increasing COP.

20 Series

380 litre unvented cylinder with large capacity heating coil for larger households.

Slimline RI

Slimline RI is only 430mm diameter and will fit into the most compact of spaces. Heating coil with single element.

Energy Saver

Recycling of heat from waste water harnessing > 40 % of spent energy on hot water with massive reductions on costs.

A quick introduction to hot water heaters and heating centrals, explaining the basic principles.

A complete overview of our products. Choices based on energy source, heating method og temperature range.

The advantages with OSO products, based on more than 40 years of stainless steel cylinder manufacture.

Choice of correct cylinder size if you know what product series you want. Based on 40 years of experience.

Equipment for special water qualities, serial connection of several units or kits for increased capacity.

Save resources and the environment by replacing spare parts instead of the complete unit.

COMMERCIAL PRODUCTS

Direct Electric

17RE
18RE

Indirect

17R(S)
17RVE
17RB
51R

Help & Support

DESCRIPTION

Maxi Standard

Large capacity direct electric unvented cylinder. 15 kW electric immersion heater. Parallell fitting of multiple cylinders.

Maxi Dublo

Large capacity indirect electric unvented cylinder ideal for hard water areas. Parallell fitting of multiple cylinders.

Maxi Turbo

Large capacity indirect unvented cylinder. Highly efficient in combination with plate heat exchanger and external energy source.

Maxi Combi

Large capacity indirect unvented cylinder. Stainless steel coil for boilers with electric backup for optional use during seasons.

Maxi Buffer

Large capacity solar unvented cylinder with massive heating coils for buffering hot water production from solar collectors.

Maxi Accu

Large capacity thermal stores. Can be manufactured to individual specifications up to 1,000 litres.

A complete overview of our products. Choices based on energy source, heating method og temperature range.

The advantages with OSO products, based on more than 40 years of stainless steel cylinder manufacture.

Cold water inlet sets, mixing valves, connection for several units, expansion vessels etc.

Choice of correct cylinder size if you know what product series you want. Based on 40 years of experience.

ENERGY SOURCES

Products

Electric Boilers
Electric Boilers
Solar Collectors

Help & Support

DESCRIPTION

Airsource Heat Pumps

Heat pumps that collects energy from outside air and provides hotwater and central heating. Typical COP of 4,0.

Groundsource Heat Pump

Heat pumps that collects energy from the ground and provides hotwater and central heating. Typical COP of 4,5.

Solar Collectors

Solar collectors provides energy from the sun and provides hotwater and/or central heating.

Gas / Electric / Oil Boilers

Highly efficient hotwater production with gas / electric boilers.

Biofuel

Highly efficient hotwater production with biofuel boilers.

Termo RS

Electric boiler suitable for space heating (radiators or UFH or both) and water heating via an indirect water heater.

Termo Plus

Space heating only boiler, for use with wet central heating system containing either radiators, UFH or both.

SolEnergi

Our solar collectors captures solar energy and heat domestic water, and are supplied with controller and pump station.

A complete overview of recommended products. Choices based on energy source, heating method og temperature range.

OSO invests heavily in R & D, and has led the development of stainless steel cylinders for more than 40 years.

How OSO works with R & D projects, and what the practical implications are for our customers.

The results of thorough testing throughout the development process provides reliable products.

Tomorrow's energi solutions are becoming increasingly advanced, and requires the accumulation of energy in hotwater.

Feedback and cooperation with our customers increases the quality of our products.

Tomorrow's most energy efficient solutions. Technologies with great potential for reducing CO2 emissions.

OSO's unique laser welding technology developed in cooperation with leading suppliers of laser equipment.

Duplex stainless steel provides considerable advantages, such as extreme corrosion resistance.

TIG welding technoloogy was the foundation for the world's first serial manufactured stainless steel water heaters from OSO.

Controlled protection of the welding process makes our products even more resistant against aggressive water qualities.

Production equipment with precision down to 1/100 millimetre gives OSO's products further advantages.

Environmentally friendly PUR foam, provides low standing heat loss. Developed uniquely for OSO.

OSO's Super Series utilizes Duplex stainless steel. Stronger, more resistant to corrosion and lower weight are key advantages.

OSO ECO Foam insulation, integration of valves and insulation around the heating element provides low heat losses.

Higher actual volume than most others, low standing heat loss and efficient valve technology results in more hotwater.

Duplex stainless steel, unique welding technology and protection of Heat Affected Zone results in high corrosion resistance.

OSO production has minimized its environmental footprint, and the products utilizes > 60 % rec ycled materials.

Pressure testing of all products at 2 x regular mains water pressure, and quality assurance in all parts of production.

OSO Hotwater was the world's first to serial manufacture stainless steel water heaters in 1970, with > 3 million units manufactured.

Important information when selecting an OSO product.

Important information about water qualities and its effect on stainless steel water heaters.

Detailed warranty information that applies to OSO's products.

Relevant documents for download, brochures, product data sheets etc.

Brochures for your installation business. (Free)

One of our representatives can visit your business when required.

OSO offers marketing material for promotional purposes to our professional customers.

We offer product- and service training at our facilities in the UK, or visit to our factory in Norway.

Relevant documents for download, brochures, product data sheets etc.

A short introduction to OEM manufacturing. (Original Equipment Manufacturer).

Stainless steel inner tanks custom-made for implementation in heat pumps etc.

Complete hotwater cylinders custom-made for larger customers.

Our recommended products for integration with existing system solutions.

Standard conditions that apply to OEM products manufactured by OSO.

Our philosophy when choosing suppliers.

What responsibility we expect our suppliers to take.

World's largest supplier of steel.

One of the foremost suppliers of stainless steel.

One of the world's largestsuppliers of insulation material technology.

Norway's sole supplier and manufacturer of valves, fittings, stainless steel coils.

One of the world's largest suppliers of thermostats and temperature controls.

Automatisk vannstoppventil i forskjellige konfigurasjoner for sikring mot vannskader.

Magnetbasert kalkoppløser som reagerer med jernet i vannet og løser opp kalk i brønnvann etc.

Offeranode for aggressive vannkvaliteter.

Facebook Twitter Google Live

More...

Send us an enquiry

Fill up the form below and OSO Hotwater will contact you.
All enquiries are usually replied to within 24 hours.
Fields marked with * are required.

Subject*

Choose the subject that is most relevant to your enquiry

Project Enquiry
Technical Domestic Products
Technical Commercial Products
Troubleshooting
Order Brochure
Other
Please select a subject.
How do you want to be contacted?*

E-mail
Phone
Choose "E-mail" or "Phone"

Name*

Please write your name.
E-mail*

Please use a valid e-mail address.
Tel.*

Please specify your phone number (only numbers). Numbers and spaces are not allowed.
Message

Please write your message.

Contact Us

Head Office

Address		Departments		Telephone		E-mail
OSO Hotwater UK Ltd. E15 Marquis Court Team Valley Trading Estate Gateshead, Tyne & Wear NE11 OUR, UK Tel.: +44 191 482 0800 Faks: +44 191 491 3655 E-post: Denne e-postadressen er beskyttet mot programmer som samler e-postadresser. Du må aktivere JavaScript for å kunne se adressen Internett: www.osohotwater.co.uk		Sales Technical Spare Parts		+44 191 482 0800 +44 191 482 0800 +44 191 482 0800		Denne e-postadressen er beskyttet mot programmer som samler e-postadresser. Du må aktivere JavaScript for å kunne se adressen Denne e-postadressen er beskyttet mot programmer som samler e-postadresser. Du må aktivere JavaScript for å kunne se adressen Denne e-postadressen er beskyttet mot programmer som samler e-postadresser. Du må aktivere JavaScript for å kunne se adressen

Manufacturing Facility

Address		Departments		Telephone		E-mail
OSO Hotwater AS P.O. Box 112, Loesmoen 3300 Hokksund, Norway Tel.: +47 32250000 Fax: +47 32250090 E-mail: Denne e-postadressen er beskyttet mot programmer som samler e-postadresser. Du må aktivere JavaScript for å kunne se adressen Web: www.osohotwater.no		Sales OEM		+47 32250000 +47 32250000		Denne e-postadressen er beskyttet mot programmer som samler e-postadresser. Du må aktivere JavaScript for å kunne se adressen Denne e-postadressen er beskyttet mot programmer som samler e-postadresser. Du må aktivere JavaScript for å kunne se adressen

Agents

Russia

Nortech Ltd.
Tel.: +7 812 32 75 019
Fax: +7 812 32 75 019
e-mail: Denne e-postadressen er beskyttet mot programmer som samler e-postadresser. Du må aktivere JavaScript for å kunne se adressen
web: www.osohotwater.ru
Finland

OY Somasyr AB
Riihikuja 3
01720 Vantaa Finland
Tel.: +358 (0)10 666 3150
Fax: +358 (0)10 666 3159
e-mail: Denne e-postadressen er beskyttet mot programmer som samler e-postadresser. Du må aktivere JavaScript for å kunne se adressen
web: www.somasyr.fi
Poland

Drawar P.h.u.
Tel.: +48 22 840 43 53
Fax: +48 22 840 43 53
e-mail: Denne e-postadressen er beskyttet mot programmer som samler e-postadresser. Du må aktivere JavaScript for å kunne se adressen
web: www.drawar.com.pl
Iceland

Einar Farestveit & Co. h.f.
Borgartúni 28
105 Reykjavík, Iceland
Tel.: +354 520 7901
Fax: +354 520 7910
e-mail: Denne e-postadressen er beskyttet mot programmer som samler e-postadresser. Du må aktivere JavaScript for å kunne se adressen
Estonia

Kodumaja AS
Ravila 61, Tartu
51014, Estonia
Tel.: +372 7 385 980
e-mail: Denne e-postadressen er beskyttet mot programmer som samler e-postadresser. Du må aktivere JavaScript for å kunne se adressen
web: www.kodumaja.com
Czech Republic

Pragonord Praha.cz s.r.o
Mánesova 53
Praha 2, Czhech Republic
Tel.: +420 222 250 131
e-mail: Denne e-postadressen er beskyttet mot programmer som samler e-postadresser. Du må aktivere JavaScript for å kunne se adressen
web: www.pragonord-praha.cz
Ukraine

JSC Biscom
Tel.: +380 44 441 06 28
e-mail: Denne e-postadressen er beskyttet mot programmer som samler e-postadresser. Du må aktivere JavaScript for å kunne se adressen
web: www.pragonord-praha.cz
South Korea

Daeshin Co. Ltd.
Tel.: +82 27 1752 62
Fax: +82 27 0628 33
Germany (Marine Units)

Wesco-Navy Import Export GmbH
Zitterpappelweg 9
D-22391 Hamburg, Germany
Tel: +49 (040) 60 00 94 68-0
Fax: +49 (040) 5 36 75 01
e-mail: Denne e-postadressen er beskyttet mot programmer som samler e-postadresser. Du må aktivere JavaScript for å kunne se adressen
web: www.wesco-navy.com
Singapore (Marine Units)

Finessco Systems (Pte) Ltd.
32 Gul Lane
Singapore 629426
Tel.: +65 68620900
Fax: +65 68623368
e-mail: Denne e-postadressen er beskyttet mot programmer som samler e-postadresser. Du må aktivere JavaScript for å kunne se adressen
Canada

Atkins Construction Ltd.
20 Atkins Lane
RTE 7, Eagle Rock
New Brunswick
E5K 3Z2, Canada
Tel.: +1 (506) 486-2096
Fax: +1 (506) 635-2912
e-mail: Denne e-postadressen er beskyttet mot programmer som samler e-postadresser. Du må aktivere JavaScript for å kunne se adressen
web: www.osohotwater.com
South Africa

Sonpower
9 Benetton Street Racing Park
Killarney Gardens
Cape Town, South Africa
Tel.: +27 (0)82 929 7212
Fax: +27 (0)86 540 3874
e-mail: Denne e-postadressen er beskyttet mot programmer som samler e-postadresser. Du må aktivere JavaScript for å kunne se adressen
web: www.sonpower.co.za

QUICK LINKS »

Sitemap

DOMESTIC PRODUCTS

Direct Electric

Indirect Systems

Indirect

SC
RI SD
RI HP
RI TC
EPCI
RI F1
RI
ES

COMMERCIAL PRODUCTS

Direct Electric

17RE
18RE

Indirect

17R(S)
17RVE
17RB
51R

ENERGY SOURCES

General Information

Products

Electric Boilers
Electric Boilers
Solar Collectors