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 makes it easy for homeowners and plumbing professionals to quickly determine the energy efficiency of a pump. Simply stated G/Wh links efficiency and performance by illustrating how many gallons of water are pumped using one watt hour of electricity. To calculate G/Wh, take the gallons per hour (GPH) pumped, divided by the power the pump consumes in watts. GPH/W = G/Wh California Code of Regulations (CCR), Title 24, also known as the California Building Standards Code, is a compilation of three types of building standards from three different origins: Residential swimming pool standards are included in the 2008 Title-24 building