Here's what Schiedel have to say about the Prima Plus and Prima Plus 1mm stainless steel single wall (single skin) wall flue system:
Corrosion Resistance
"Corrosion Resistance Chimneys are subject to significant corrosion attack by flue gas condensates, particularly from solid fuel heavy oils and condensing appliances. Prima Plus and Prima Plus 1mm are specifically designed and manufactured to resist this corrosion. It is the only stainless steel single wall (single skin) chimney system in the world to have passed the internationally recognised Gastec corrosion test".
Flue Size Selection Guide
"The chimney size should be as recommended by the appliance manufacturer. Where there is a requirement for a flue diameter smaller than the appliance spigot, then the operational requirements of the appliance and the configuration of the flue must satisfy the flue sizing requirements of DIN4705 (commercial only). For more information contact the installer. The information and sizes below are provided as a nominal guide only. Flue sizing for appliances, particularly commercial/industrial applications, will vary depending on siting details and appliance manufacturer's instructions and design criteria. These will override the sizing guide and reference guide and reference must be made to the appliance manufacturer. For Inglenook and non-standard openings, the diameter of the flue must be at least 15% of the cross sectional area of the fireplace opening".
Return to previous page