A-sky Instruments

A muffle furnace or muffle oven (sometimes retort furnace in historical usage) is a furnace in which the subject material is isolated from the fuel and all of the products of combustion, including gases and flying ash. After the development of high-temperature heating elements and widespread electrification in developed countries, new muffle furnaces quickly moved to electric designs.

 

A  Box Furnace is known by several other names or terms, depending on the industry, application, or specific design. Here are some common alternative names and related terms for a muffle furnace.