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Thermal Energy

About the company

Thermal Energy is a fully accredited professional engineering firm, and can offer advanced process and applications engineering services.

By providing a unique mix of proprietary products together with process, energy, environmental, and financial expertise Thermal Energy is able to deliver unique and significant financial and environmental benefits to our customers.

Accredited technology groups:

Heat recovery ventilation, Steam systems

Areas supplier covers

Map only shows primary address supplier has provided.

Case Study - University Hospital Bristol

Old Technology: UH Bristol has implemented many energy saving projects including solar panel installations, new energy efficient buildings & recycling. Faced with the challenge of finding new projects and the ever rising gas prices, the site decided to look at their extensive steam system as somewhere to recover energy. The site was losing 20% of energy to atmosphere through exhaust gases and a minimum 10% annually to failing mechanical steam traps. This was costing the site thousands of pounds annually.

Solution: Working with TEI, an operating lease agreement was built so that the Trust could benefit from the carbon savings and increased efficiency, whilst using some of the financial savings to pay for it.

The first phase of the project with TEI was to install the FLU-ACE, a direct contact condensing economiser, which reduces the boiler exhaust gas temperature below the dew point to about 25°C. Cooling beyond the dew point releases all the latent energy in the exhaust by condensing all the moisture inside a separate stack. This can typically save 20% of the boiler fuel bill.

The second phase of the project involved converting all 337 mechanical steam traps to TEI’s GEM steam trap. Mechanical traps are designed with a large orifice, requiring an opening and closing mechanism to regulate the flow of condensate through a trap. These moving parts often fail; either in an open position wasting large amounts of energy or closed preventing heat transfer and causing potentially dangerous water hammer. The GEM trap contains no moving parts so eliminates these failures resulting in a minimum 10% energy saving.

Annual energy saving: £300,000

Annual carbon saving (tCO2e): 3,000

Project payback: 2-5 years

We were very impressed with the installation. Working with our estates team, TEI ensured that we had minimal downtime, as well as incorporating our views into pipe runs and critical areas. We have an excellent ongoing partnership with them and they regularly pop in to check how the systems are performing

Sam Willits, Energy & Sustainability Manager, University Hospital Bristol


Carbon Trust Accredited Suppliers have met or exceeded criteria set by the Carbon Trust designed to examine their capability to deliver thoughtful, well-designed energy efficient and renewable energy systems. As part of the assessment process, the Carbon Trust takes into consideration feedback from client references regarding the suppliers’ performance. Whilst the Carbon Trust has endeavoured to confirm that all suppliers included in the Green Business Directory are of a proven high quality, users of the Green Business Directory enter into contracts directly with Accredited Suppliers to the exclusion of the Carbon Trust, and at their own risk. The Carbon Trust makes no representations regarding, nor does it accept any liability whatsoever in respect of, the performance of any services or the supply of any goods by Accredited Suppliers. Case studies have been written and supplied by Accredited Suppliers. Details should be independently reviewed by prospective customers

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