Firkin (unit) Firkin (unit) A firkin is a unit of volume or mass used in several situations. Its etymology is likely to be from the Middle English "ferdekyn", probably from the Middle Dutch diminutive of vierde ‘fourth’ (a firkin originally contained a quarter of a barrel). A firkin is an American unit of dry measure. 1 firkin = 9 US gallons = 34 litres. A firkin was a British unit for the sale of butter and cheese. 1 firkin = 56 pounds = 25 kilograms A firkin is also a British unit for the sale of beer. It is one quarter of
Gallons per watt-hour standards. The Energy Commission adopted the 2008 Standards on April 23, 2008, and the Building Standards Commission approved them for publication on September 11, 2008. The 2008 Residential Compliance Manual was adopted by the Commission on December 17, 2008, and the 2008 Non-residential Compliance Manual was adopted January 14, 2009. Gallons per watt-hour Gallons Per Watt-Hour or (G/Wh) is a formula used to test the efficiency of a pool pump or sump pump. California's Appliance Efficiency Regulations were established in 1976 in response to a legislative mandate to reduce California's energy consumption. Through that "Title 20" was born. Over time