Slumberjack Coffee approached John J Doyle Ltd to design, supply and install a flue system to suit the new and existing coffee roasters.
The coffee roasting process uses very high temperatures, the extraction would hit approximately 600°C and peak temperatures of 800°C. Many standard flue products have a maximum temperature of 600°C. This is why product designation and CE marking are so important.
Due to these high temperatures, John J Doyle Ltd opted for flue products with 100mm ceramic fibre insulation ensuring surface temperatures of the flue to a maximum of 70°C.
A Venturi style terminal was chosen as the termination of the flue system required a product to let air flow freely out of the chimney, without any backpressure which helps the roasting and cooling process and to prevent any water ingress.
Initially, the fitting team was booked for the installation of one coffee roaster. Once on site, an additional system for a second coffee roaster was requested. This created a very tight deadline but the fitting team worked over the weekend so that roasting could start that Monday.
The project was completed on time and on budget. All chimney and flue products were supplied and installed compliant with European and regional standards.