All imported closed-system / slow-combustion fireplaces should be installed using an insulated fluekit. These imported fireplaces radiate a tremendous amount of heat through the flue, if not insulated. This WILL lead to the drying out of the rafters and beams in your roof, which may eventually lead to spontaneous combustion - in other words, it can burn down your house. As there are currently no laws governing the installations of imported fireplaces in South Africa, a lot of companies are still selling plain /single-wall / un-insulated flues to customers who rely on the salesman's supposed superior knowledge. Also beware of companies supplying you with stainless flues, but in fact use galvanized inner flues. As the inner flue takes the brunt of the heat, it really does not make sense to supply inner flues made from inferior materials.
At Thermo we follow the European standards of installation, and only manufacture stainless steel double-walled insulated fluekits that are guarenteed to not cause a fire. Our insulation is non-flammable and is certified up to 600º Celsius, with a melting point of >1000ºC, making it the best insulation on the market, and even used in boilers and on ships. We can therefor give a 5 YEAR WARRANTY on all 304 and 316 stainless fluekits, PROVIDED it is installed by an installer and not your builder. The 430 fluekits only carry a 1 year warranty and should not be installed in the corosive air of the Atlantic Seaboard.
We supply 5 standard size flue kits: (internal diameter) 125 dia, 150 (152) dia, 180 dia, 200 dia and 250 dia. This fits most imported slow-combustion fireplaces. However, we also custom-make other sizes where needed. We also carry a range of adaptors/reducers for those non-standard sizes, i.e. 130 dia, 134 dia, 174 dia.
Choose between 3 different grades of stainless - 430, 304 or 316.
430 Stainless steel is a magnetic stainless that has a shiny mirror-like look, while 304 & 316 Stainless has the "classic" stainless look and is non-magnetic. Known by most people as the true stainless steel, 304 and 316 are the grades we suggest to use if you are living close to the ocean's corrosive sea-air. To that effect, our endcaps are all spun from 316 stainless steel.
Also available to complete your installation, are bends - standard and insulated, T-Pieces, Ceiling plates, cowls and brackets manufactured in the same grades of stainless steel as your flues.
Flues and Bends for Braais and open Fireplaces
Most of our flues are manufactured round, in many standard diameters, but can also be ordered in custom sizes. Standard available in cold-rolled, electro-galvanized, pre-galvanized, hot-dipped galvanized, 430, 304 & 316 stainless steel. Don't worry - our expert sales staff will be happy to assist with the choice of material, depending on your application, and of course how close to the ocean your are. As we are manufacturers, we can also custom make square, rectangular, hexagon and octogon flues to your size and application, available in the above materials as well as 3CR12.