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2. Heat pump - Wikipedia

   en.wikipedia.org/wiki/Heat_pump

   In general, heat pumps work most efficiently (that is, the heat output produced for a given energy input) when the difference between the heat source and the heat sink is small. When using a heat pump for space or water heating, therefore, the heat pump will be most efficient in mild conditions, and decline in efficiency on very cold days.

3. List of Historic Mechanical Engineering Landmarks - Wikipedia

   en.wikipedia.org/wiki/List_of_Historic...

   Unusual triple-expansion, three-crank "rocker" engine, driving high-capacity, high-speed pumps. 1894 Boston: Massachusetts United States ASME brochure: 3: 1974 A.B. Wood Screw Pump. The most advanced low-lift drainage pump in use in the early 20th century, later used worldwide. 1914 New Orleans: Louisiana United States ASME brochure: 4: 1975

4. Worthington Enterprises - Wikipedia

   en.wikipedia.org/wiki/Worthington_Enterprises

   Worthington Enterprises, Inc. is a global diversified metals manufacturing company based in Columbus, Ohio.It is a steel processor and manufacturer of pressure vessels, such as propane, oxygen and helium tanks, hand torches, refrigerant and industrial cylinders, camping cylinders, exploration, recovery and production products for global energy markets; water system tanks for storage, treatment ...

5. Heating system - Wikipedia

   en.wikipedia.org/wiki/Heating_system

   Central heating systems: These systems produce heat in one central location and distribute it throughout the building. This category includes furnaces, boilers, and heat pumps. [1] [2] Distributed heating systems: These systems generate heat in the space they are to heat, without extensive duct systems. Examples include electric space heaters ...

6. Central heating - Wikipedia

   en.wikipedia.org/wiki/Central_heating

   A central heating system has a furnace that converts fuel or electricity to heat. The heat is circulated through the building either by fans forcing heated air through ducts, circulation of low-pressure steam to radiators in each heated room, or pumps that circulate hot water through room radiators.

7. Denison Hydraulics - Wikipedia

   en.wikipedia.org/wiki/Denison_Hydraulics

   In addition to other products, the intent was to manufacture aircraft pumps. In 1955, Bill Denison sold his business to American Brake Shoe. He remained president and resided on the Board of Directors. 1956 the aircraft pumps are moved to Rochester, New York and later Oxnard, California. Finally, in April 1962, the business moved to Marysville, OH.