SFL Flues & Chimneys
Pottington Business Park
EX31 1LZ

+44 (0)1271 326633 Contact us Today


+44 (0)1271 326633

British-built Heat Recovery Flue Systems From SFL

Flue Systems For Heat Recovery Technology

Heat recovery systems are increasingly popular with the drive for businesses to become more efficient, energy-savvy and air quality conscious. Waste hot flue gasses can be removed and utilised within production plants for heating, washing or using within the manufacturing process itself. Especially popular within bakery environments, metal, paper and food production plants significant energy savings can be gained by installing waste hot flue gas heat recovery. NOVA® twin wall flue systems can be designed to work with all brands of heat recovery and with its high-density insulation ensures vital heat and energy aren’t lost through the flue itself.

Important Considerations

Performance of the appliances can be significantly affected by incorrect flue design and many other factors including:

  • Flue Calculations
    Incorrect calculations and design may affect the flue under natural draught, fan assistance may be required for precise control with draught.
  • Linking flues
    Linking more than one flue into the heat recovery system can increase the amount of energy that is recovered.
  • No loss of production time
    Flue bypasses can be installed to carry out planned maintenance on the heat recovery without the need to halt production.

Why choose SFL?

We are proud of our British built heritage at SFL. All our products are fabricated at our manufacturing centre in Barnstaple, Devon, UK. As well as investment in the latest manufacturing system, we also have an extensive R&D centre ensuring continuous product development and testing to the latest European standards.

UK Flag

British Built

UK manufactured flue & chimney systems.


Full Design Support

Get expert design assistance & full turnkey package support.


Industry Expertise

With over 50 years experience, you are in expert hands with SFL.

Successful project delivery, no matter the challenge.

We’re committed to offering industry-leading support services. That’s why SFL can provide full technical support throughout the whole process of design, manufacture, and supply of your upcoming project. From initial product selection from our range of British built systems to full design drawings with component selection and quotations working with key installation partners providing a unique turnkey package.

Suitable Systems


Twin Wall Flue System


NOVA® insulated twin wall system, a superior, U.K designed, engineered and manufactured flue for quality domestic installations. With its uniquely robust multi barb speedy twist lock jointing system, it's trusted and favoured by installers around the globe. A wide range of components makes any installation a possibility.

Need technical design assistance?

Let's discuss your project

Our team of experienced commercial flue experts are on hand to assist you at every stage of your project. Support includes product selection and application advice including existing system surveys and advice. Working with key installation partners we can provide you with a bespoke customised turnkey package.

Get Project Assistance

Let's discuss your next project

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