What the calculator will do for you
It will tell you the following…
Cylinder size
Cylinder recovery time
It will give you answers in indirect or direct
It will give answers up to 1000 litres (or more if multiple 1000L units) so its suitable for domestic or commercial
It will tell you when the main is not big enough
If the main isn’t big enough it will size the accumulator(s) to supplement the main and make it work
It will give you the accumulator refill time (and if this is excessive it will inform you that you need extra accumulators)
It will tell you the size the main needs to be if you don’t want to use accumulators
It will tell you if you need a Charger pump with accumulators
It will tell you the hot water pipework size of the cylinder
The hot water pipework size will then guide you towards which cylinder or if multiple cylinders how to connect them (series/parallel etc)
Alternatively you can download your own OSO calculator below
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:
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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.
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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.
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.