Tim Cremin Inventor of the Oxyvent Tank

Tim Cremin Managing Director of Oxyvent Ltd.

About Us
Oxyvent Ltd discovers new Delta T.  Oxyvent is the first and only company to reduce the standard Delta T of 11°C to 2°C in all water based heating systems worldwide.

Oxyvent won a silver medal for The Oxyvent Tank in Geneva, Switzerland in 2001 and also won Double Gold in Pittsburgh, USA in 2014.  Oxyvent Ltd. is in business with 16 years.


Inventor’s Story

Getting the initial brainwave, designing the product, acquiring a Patent, securing suitable standards and manufacturers is a new difficult experience for any individual inventor, but on hindsight that was the easiest part for me.  With any good invention there are always vultures just waiting to copy your idea, and I had only invented the Oxyvent Tank for a few months when I had to endure the terrible trauma and expense of having to deal with just that.

We had to tolerate the slow process of a High Court Case which I had to defend myself for obvious reasons, against a local Company Ecoplus Limited. I was granted a Declaration of Patent Infringement against them after a nine year struggle to get into Court.  They filed a Patent application under Bodenhill Properties where there were ten named individuals with no experience in central Heating.  Most of the so called inventors denied that they ever invented or signed the Patent application which is basically illegal.  They even had the audacity to put a picture of my invention on their Patent Application. I successfully brought that to an end.

What kept me motivated was the customers and Installers positive reaction when they saw the end result. There is no better satisfaction than see your invention successfully installed in homes throughout Ireland, the UK and beyond.

It is only the best inventions that are copied. Please support original Inventors.

More to come later.


The Oxyvent Tank was the first square pressure vessel to be designed for a heating system,  The Oxyvent Tank is manufactured by the VDL Group in the Netherlands with the last 16 years and has a TUV certificate of design, CE mark, ISO 14001, ISO 9001 and ISO-TS 16949 Full Patents EP 1264146, US 7,225,287, CA 2408788.

VDL Group Netherlands

The Oxyvent Wiring Board is manufactured in Ireland to ISO 9001.  It is ideally suited for connecting all boilers, particularly combining solid fuel with oil/gas.

TV Programs Oxyvent was featured on the following RTE programs,  Show Me The Money with Eddie Hobbs; About The House with Duncan; RTE Nationwide.  The Oxyvent Tank was also Launched by Duncan Stewart in 2002


About the house About The House

– Nationwide
Tim Cremin Oxyvent with RTE's Duncan Stewart

Celebrity Duncan Stewart with Tim Cremin at the Launch of the Oxyvent System back in 2002.