Norway's best-selling water heater gets even better

Water heaters from the SAGA series have been Norway’s best sellers for a number of years, and is now available in markets across the world. Now we are launching the next generation of water heater – SAGA 2.0 – with the market’s lowest heat loss.

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OSO Saga2.0 V1

World-class water heaters

Since 1932, OSO Hotwater has been producing water heaters of the highest quality. From our factory in Hokksund, we supply Norway and the rest of the world with water tanks that provide stable hot water and low heat loss.

Water heaters from OSO Hotwater are energy-saving, environmentally friendly, and long-lasting. This is beneficial for consumers, industry, and the environment.

Smarter hot water with the smart water heater from OSO

SUPERCHARGED and CHARGE Retrofit are smart control products that help you heat your water heater when electricity prices are low. They are based on prices from the Nord Pool electricity market and your hot water consumption.

OSO Supercharged v1

Domestic

The market’s widest range of stainless steel water heaters for residential use, with leading quality and lifespan.

Commercial

A complete range of commercial stainless steel water heaters from 300 to 15,000 liters.

Marine

Proud supplier to the marine and offshore industries, where the environments impose extreme quality demands.

Two out of three homes in Norway have chosen an OSO water heater to provide them with hot water and well-being.

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Quality

Throughout 60 years we have perfected the stainless steel heater. The combination of material choice, robotized production and intelligent solutions gives the OSO products unbeatable lifetime.

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Energy efficiency

OSO heaters have the lowest heat loss on the market, and are designed to give maximum performance. This gives our products the lowest power consumption and a unique lifespan economy for our customers.

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Environment

50 years of efforts and investments to unite people, environment and industry, and for this given several awards. In three generations our objective has been the same: Protect Our Beautiful Planet!

News

June 30, 2025

LG Electronics Inc., a global leader in home appliances and consumer electronics with sales of USD 64 billion…

March 5, 2025

OSO Hotwater is taking a lead in the the energy transition with innovative products, and is present at…

September 5, 2023

New Brunswick — OSO Hotwater Group, a leading supplier of smart stainless steel hotwater tanks with innovative solutions,…

Ethical guidelines

Over 85 years OSO Hotwater has earned the trust from suppliers, co-workers and customers. We are still going to earn, and manage, this trust in an exceptionally good way, and value the opinion of our partners.

Our guiding targets:

  1. Safe products, manufactured by safe processes
  2. Class leading quality and efficiency
  3. Correct products delivered on-time
  4. Cost- and energy efficient processes

OSO Hotwater AS

Organization number 936 603 947

Patents and trademarks

Information about the product owners’ rights

OSO Hotwater’s web pages may contain or provide references to trademarks, patents, owner information, technologies, products, processes or other rights of OSO Hotwater Group AS. No license or rights to any of these trademarks, patents, information about owners, technologies, products, processes or other rights of OSO Hotwater Group AS are assigned or granted to users of this site.

A number of the products on the OSO Hotwater website may be or are protected by patents or trademarks. This includes both production technology and / or complete products. These may be specified in the site’s texts, but are not required to be protected by the patent. The underlying technology for the production of the product may or may not be the property of OSO Hotwater.

It is to be noted that all violations of OSO Hotwater Group AS’ rights will be subject to legal prosecution.

Legal terms

Information about the legal terms relating to our web site

This site, including its content, is fully owned by OSO Hotwater. We reserve all rights to this material.

You may store extracts from the OSO Hotwater website on your personal computer and print copies of these for personal, non-commercial use. You are permitted to use and distribute necessary and minor extracts from the OSO Hotwater website to facilitate direct links / pointers to the pages, or linking for search services on the Internet.

Any other use, such as reproduction, translation, processing, arrangement, and any other modification, distribution or storage of this Site in any form and by any means wholly or in part, is not permitted. The information presented on this site will not be accurate, up to date, or current for circumstances surrounding a particular issue. We can not assume any liability for inaccuracies or omissions. Any decisions made based on information contained on this site are at your sole discretion.

Neither OSO Hotwater nor any of OSO Hotwater subsidiaries accept liability for any direct, indirect, special, substantial or other loss or destruction of any nature which may result from access to or use of this site or its content. This notice is subject to and must be interpreted in accordance with Norwegian law.

Privacy

Information about how our web site handles your personal data.

OSO Hotwater appreciates your visit to our website and your interest in our products and services.

We want you to be sure that your personal information is processed safely. All personal information you provide to OSO Hotwater is only used to provide you with better service.

The information is used as follows: The information is collected and stored to help us meet your inquiries and provide you with the services you request. Visits on our web pages are tracked so we can assess which parts of the website provide the best service for our users.

OSO Hotwater does not sell any of the information captured. Please note, however, that our web pages may contain links / pointers to other websites. OSO Hotwater is not responsible for the manner in which privacy is practiced on such websites.