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2. W. R. Sweatt - Wikipedia

   en.wikipedia.org/wiki/W._R._Sweatt

   In 1927 the Minneapolis Heat Regulator Company, then a manufacturer of automatic controls for coal-fired furnaces, and Honeywell Heating Specialties Company, a manufacturer of oil burner controls, merged to form the Minneapolis-Honeywell Regulator Company. The two companies had patents which blocked each other from further growth.

3. Furnace (central heating) - Wikipedia

   en.wikipedia.org/wiki/Furnace_(central_heating)

   These furnaces were still big and bulky compared to modern furnaces, and had heavy-steel exteriors with bolt-on removable panels. Energy efficiency would range anywhere from just over 50% to upward of 65% AFUE. This style furnace still used large, masonry or brick chimneys for flues and was eventually designed to accommodate air-conditioning ...

4. Honeywell - Wikipedia

   en.wikipedia.org/wiki/Honeywell

   The Butz Thermo-Electric Regulator Company was founded in 1885 when the Swiss-born Albert Butz invented the damper-flapper, a thermostat used to control coal furnaces, bringing automated heating system regulation into homes. [11] In 1886, he founded the Butz Thermo-Electric Regulator Company.

5. Thermostat - Wikipedia

   en.wikipedia.org/wiki/Thermostat

   The power through the thermostat is provided by the heating device and may range from millivolts to 240 volts in common North American construction, and is used to control the heating system either directly (electric baseboard heaters and some electric furnaces) or indirectly (all gas, oil and forced hot water systems).

6. Honeywell Aerospace - Wikipedia

   en.wikipedia.org/wiki/Honeywell_Aerospace

   Honeywell C-1 autopilot control panel Minneapolis-Honeywell Aeronautical Division logo from 1944. Garrett AiResearch's (now part of Honeywell) first major product was an oil cooler for military aircraft that allowed the Douglas DB-7, and Boeing's B-17 and B-25 bombers to fly at higher altitudes. [19]

7. Honeywell UOP - Wikipedia

   en.wikipedia.org/wiki/Honeywell_UOP

   A Honeywell refinery producing green diesel from natural oils in Pasadena, Texas.. The UOP Riverside research and development laboratory in McCook, Illinois was conceived in 1921 by Hiram J. Halle, the chief executive officer of Universal Oil Products (now simply UOP), as a focal point where the best and brightest scientists could create new products and provide scientific support for the oil ...