The Smartest Water Heater on the Market - Now, in Canada.

Say Hello…to the Smarter Hot Water Heater

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.

Home products

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.

Smart technology at your fingertips

Control your hot water and save energy with our easy-to-use app.

Energy efficiency

The lowest heat loss on the market.

Built to last

Durable stainless steel construction ensures long-term reliability.

Worry-free warranty

Enjoy 7 years of guaranteed performance.

Simple Installation

Lightweight design means quick and hassle-free setup.

Leak protection

Advanced safeguard technology designed to detect and prevent leaks.

Upgrade to a hot water heater that’s efficient, reliable, and built for modern living. Experience OSO - the smartest solution today!

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…

December 9, 2024

Riada Sales has been providing high quality HVAC equipment, instrumentation, and plumbing products since 1995. Riada assists in…

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

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.