circulation heater
81Air Movement and Control Association — The Air Movement and Control Association International, Inc. (AMCA; pronounced Am Cah ) is a nonprofit organization that creates standards for, tests, and rates Heating, Ventilating, and Air Conditioning (HVAC) equipment. It is best known for its …
82Furo — For furo (風炉), the hearth used in Japanese tea ceremony, see List of Japanese tea ceremony equipment#Hearths. A traditional private ofuro in a Ryokan in Kyoto …
83Thermic siphon — Thermic siphons are heat exchanging elements in the firebox or combustion chamber of some steam locomotive designs. They were invented and patented [ [http://www.freepatentsonline.com/1679051.html Thermic siphon for locomotives Patent 1679051 ] ] …
84Mercedes-Benz OM601 engine — Manufacturer Mercedes Benz Production 1983–2001 Predecessor Mercedes Benz OM612 engine Displacement 2.0 L (1997 cc) 2.2 L (2197 cc) 2.3 L (2299 cc) …
85Oil pump (internal combustion engine) — This article is about a part in an internal combustion engine. For other uses, see Oil pump. Oil circulation system …
86Diffusion of technology in Canada — This article outlines the history of the diffusion or spread of technology in Canada. Technologies chosen for treatment here include, in rough order, transportation, communication, energy, materials, industry, public works, public services… …
87Fan death — is a South Korean urban legend which states that an electric fan, if left running overnight in a closed room, can cause the death (by suffocation, poisoning, or hypothermia) of those inside. Fans manufactured and sold in Korea are equipped with a …
88printmaking — /print may king/, n. the art or technique of making prints, esp. as practiced in engraving, etching, drypoint, woodcut or serigraphy. [1925 30; PRINT + MAKING] * * * Art form consisting of the production of images, usually on paper but… …
89ventilating — Natural or mechanically induced movement of fresh air into or through an enclosed space. The hazards of poor ventilation were not clearly understood until the early 20th century. Expired air may be laden with odors, heat, gases, or dust.… …
90Frostbite — Damage to tissues from freezing due to the formation of ice crystals within cells, rupturing the cells and leading to cell death. Frostbite goes through several stages: {{}}First degree injury: When only the surface skin is frozen, the injury is… …
