to offer (usually something intangible): to proffer friendship Origin of proffer Middle English profren from Anglo-French and Old French proffrir from poroffrir from por-, pro- + offrir from Vulgar Latin an unverified form offerire, for Classical Latin offerre, to offer
TOTAL. Natural gas is measured in therms or BTUs. A therm is a measurement of the amount of heat energy in natural gas, equal to 100,000 BTUs. A BTU, or British Thermal Unit, is the quantity of heat required to raise the temperature of one pound of water by one degree Fahrenheit. The current charge for natural gas from Peoples Gas is $0.3641 per therm. If you would like to change the rate used in the calculations above, enter a new rate below. $ per therm.
1 barrel of residual fuel oil = 6,287,000 Btu ; 1 cubic foot of natural gas = 1,037 Btu ; 1 gallon of propane = 91,333 Btu ; 1 short ton (2,000 pounds) of coal = 19,146,000 Btu (for the electric power sector) 1 kilowatthour of electricity = 3,412 Btu ; Examples of converting different energy sources to Btu. Example 1: You have a natural gas furnace in your home that used 81,300 cubic feet of natural gas for heating last winter. Your neighbor has a furnace that burns heating oil that used 584 gallons of heating oil last winter. You can convert the natural gas and heating oil consumption data into Btu to determine which home used more energy for heating.