Polttouuni

Polttouuni is a Finnish term that can refer to several types of kilns or furnaces used for high-temperature processes. The most common usage refers to a wood-fired kiln, typically used for firing ceramics or bricks. These kilns are constructed from refractory materials like bricks and clay, and the heat is generated by burning wood in a firebox. The design of a polttouuni can vary significantly depending on its intended use, with different shapes and internal structures optimized for specific firing temperatures and durations.

Another application of the term polttouuni is in the context of waste incineration. In this sense, it describes a furnace designed to burn waste materials at high temperatures, often with the aim of reducing their volume or rendering them harmless. These industrial kilns are equipped with systems for controlling combustion and often include mechanisms for capturing emissions.

Historically, polttouuni also encompassed simple hearths or ovens used for cooking or heating in older dwellings. These were often rudimentary structures built from stone or clay, where fuel like wood or peat was burned directly to generate heat. The term's versatility highlights its core meaning of a structure designed for intense heat generation.