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ThermaQ

Therma Q continues to drive new manufacturing technologies and design practices. Leading the way in the UK water heating market, we’re committed to fulfilling our customers’ requirements and with our wide product range of unvented cylinders, we offer the very best in both domestic and commercial products.


ThermaQ Evocyl range is the first choice for value while providing superior performance.

How do we guarantee our customers the best possible performance, quality, and reliability while ensuring our products provide powerful main pressure showers and faster-filling baths, with maximum reliability and efficiency?

The answer is in our process. When developing the ThermaQ cylinder range of products we set about using the most advanced water heating technology available. When this doesn’t meet the high standards of performance, efficiency, and reliability we insist upon, we develop innovative new technology of our own.

Thermaq Evocyl Air Standard Hot Water Cylinders Range

Designed for performance and reliability along with environmental care and responsibility.


  • Our standard range of superior quality Evocyl AIR cylinders is built using high-grade Duplex stainless steel and designed with quality components.
  • For your peace of mind, they come with a 25-year cylinder and 2 years parts guarantee, so we believe it will be a great investment you make in your hot water.

ThermaQ Evocyl Pre-Plumbed

The Thermaq Evocyl plug and go hot water cylinder, pre-plumbed unit is available right across our range of Standard, Twin Coil and Slimline units.


Benifits of using a Therma Q pre plumb system:

  • Intuitive controls for ease of use for home owners.
  • A cost effective and simplified installation for a professional, neat and tidy layout and reduced labour time.
  • Installations are consistent across the range for uniformity and greater customer satisfaction.
  • Factory fitted components and control assists in reducing expensive customer care visits to site.

Thermaq Evocyl Pre Plumb System Hot Water Cylinders Range

Thermaq - Unicyl Hot water Cylinder Range

Unvented Cylinders for the Professional Heating and Plumbing Engineer. Therma Q Unicyl range is the first choice for value while providing superior performance.


  • Cylinder manufactured from high-grade Duplex stainless steel – specially selected for its high strength and resistance to stress and crevice corrosion.
  • Lightweight construction.
  • Flat base for additional stability.
  • All plumbing connections are clearly identified and accessible at the front of the cylinder.

ThermaQ Manufacturing

ThermaQ constantly invests in the latest manufacturing technology and systems to develop robust and automated processes that ensure we produce the best product at the best value and consistently set the standards others aspire to

The key to our success has been our 100% in-house production facilities, giving us total control in terms of the wide range of products we are able to manufacture. This flexibility allows us to meet customers’ needs and deadlines even if there is a change in specification and requirement.

Our Environment - Working towards a Sustainable Future

We operate an effective environmental management system that makes the best use of resources and promotes the efficient manufacture of our products, to minimise any negative impact on the environment.

Therma Q has a robust Environment Management System that meets – as a minimum standard – the requirements as set in BS EN ISO 14001. The system has been adopted to minimise potential environmental and health impacts and fully considers relevant legislation, regulations, and legal requirements with regard to government policies, ethical trading, sustainability, and customer expectations. Our products are designed to be as efficient as possible to reduce the use of fossil fuels through heating and minimise any negative environmental effects.

Matthew Nicholson

Area Sales Rep

Mob: 087 454 8155

Email: matthew@joule.ie

Darren Moran

Area Sales Rep

Mob: 087 656 3613

Email: darrenmoran@joule.ie

Ciaran Clohessy

Area Sales Rep

Mob: 087 357 6408

Email: ciaran@joule.ie

Eoin Naughton

Area Sales Manager

Mob: 086 773 5095

Email: eoin@joule.ie

Sean Collins

Area Sales Rep

Mob: 087 692 8114

Email: sean@joule.ie

Eoghan Conway

Area Sales Rep

Mob: 083 176 2372

Email: eoghan@joule.ie

Ronan Ginnell

Group MD

Mob: 077302 17060

Email: ronan@jouleuk.co.uk

Frazer Dalrymple

Area Sales Manager

Mob: 07525 279840

Email: frazer.dalrymple@jouleuk.co.uk

Andrea Innes

Area Sales Manager

Mob: 07764 961624

Email: andrea.innes@jouleuk.co.uk

Craig McCrudden

Area Sales Manager

Mob: 07495 580932

Email: craig@jouleuk.co.uk

Paul Steward

Renewable Sales Manager

Mob: 07506 194540

Email: paul@jouleuk.co.uk

Rob Chalkley

Area Sales Manager

Mob: 07983 686720

Email: robert@jouleuk.co.uk