If you own a gas-burning forced-air furnace or are thinking of buying one, understanding how they work is an important first step. How a Gas Furnace Works: The Heating Cycle Let’s begin by ...

This furnace is the work of [Ahmed Ghr], and is as simple a build as they come. The idea is to produce a mold in which to cast concrete to create the furnace. A steel bucket is cut up and used as ...

Understanding the history of metal extraction, how a blast furnace works and the strategic siting of steelworks provides insight into one of the most critical industrial processes in modern society.