Rökrör

Rökrör is a Swedish term for a pipe or duct that carries smoke and combustion gases from a stove, fireplace or oven to a chimney or flue. It is a common component in wood- and solid-fuel heating systems and may appear as exposed sections of black stove pipe inside a room or as concealed ducting within a wall. In English contexts it corresponds to "stovepipe" or "flue pipe."

Materials and designs vary with application. Simple single-wall steel pipes are common for indoor connections, while double-wall or insulated prefabricated flue systems are used where reduced clearances or higher thermal efficiency are needed. Concentric (coaxial) pipes are used for balanced-vent systems. Components include straight sections, elbows, tees, and connectors that must fit securely and be appropriate for the appliance and fuel.

Proper installation and maintenance are important for performance and safety. Rökrör must be fitted with correct clearances to combustible materials, slope upward toward the chimney to avoid pooling of condensate and soot, and be sealed to prevent leaks of combustion gases. Regular inspection and sweeping remove creosote and soot that can reduce draft and increase fire risk. Faulty or poorly installed pipes can lead to smoke problems, carbon monoxide hazards, and chimney fires.

Local building codes and manufacturer instructions dictate acceptable materials, clearances and inspection intervals. Rökrör remains a practical and widely used element in traditional and modern heating installations across Nordic and other cold-climate regions.