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2. List of conversion factors - Wikipedia

   en.wikipedia.org/wiki/List_of_conversion_factors

   A number of different units (some only of historical interest) are shown and expressed in terms of the corresponding SI unit. Conversions between units in the metric system are defined by their prefixes (for example, 1 kilogram = 1000 grams, 1 milligram = 0.001 grams) and are thus not listed in this article.

3. Ton of refrigeration - Wikipedia

   en.wikipedia.org/wiki/Ton_of_refrigeration

   It was originally defined as the rate of heat transfer that results in the freezing or melting of 1 short ton (2,000 lb; 907 kg) of pure ice at 0 °C (32 °F) in 24 hours. [1] [2] The modern definition is exactly 12,000 Btu IT /h (3.516853 kW). Air-conditioning and refrigeration equipment capacity in the U.S. is often specified in "tons" (of ...

4. Cooling capacity - Wikipedia

   en.wikipedia.org/wiki/Cooling_capacity

   The SI unit is watt (W). Another unit common in non-metric regions or sectors is the ton of refrigeration, which describes the amount of water at freezing temperature that can be frozen in 24 hours, equivalent to 3.5 kW or 12,000 BTU/h. [1] [2] [3]

5. Own a pool in Southern California? New air-quality rule ...

   www.aol.com/news/own-pool-southern-california...

   Bans on large gas-fired units and pool heaters will begin in 2027, and high-temperature units in 2029. Gas-fired water heaters will be banned from existing buildings once the appliances reach a ...

6. Milwaukee Road class F6 - Wikipedia

   en.wikipedia.org/wiki/Milwaukee_Road_class_F6

   375,850 lb (170,480 kilograms; 170.48 metric tons) Total weight: 532,000 lb (241,000 kilograms; 241 metric tons) Fuel type: Coal: Fuel capacity: 40,000 lb (18,000 kilograms; 18 metric tons) Water cap. 15,000 US gal (57,000 L; 12,000 imp gal) Firebox: • Grate area: 80 sq ft (7.4 m 2) Boiler pressure: 225 lbf/in 2 (1.55 MPa) Feedwater heater

7. Water heating - Wikipedia

   en.wikipedia.org/wiki/Water_heating

   All new gas storage tank water heaters with capacities smaller than 55 US gal (210 L; 46 imp gal) sold in the United States in 2015 or later shall have an energy factor of at least 60% (for 50-US-gallon units, higher for smaller units), increased from the pre-2015 minimum standard of 58% energy factor for 50-US-gallon gas units. Electric ...