How many BTUs are in a cubic foot of propane per psi test?

How many BTUs are in a cubic foot of propane per psi test?

• A. 1200
• B. 2400
• C. 1400
• D. 3200

Answer: (D)

Propane gas carries a lot more energy per unit volume than many other fuels, so its BTU content per cubic foot is relatively high. Under standard test conditions, the energy available from burning one cubic foot of propane vapor is typically cited around 3,200 BTU. This higher energy density is why propane burners deliver more heat per volume of gas compared with alternatives like natural gas, and it’s the figure used for sizing and performance checks in HVAC practice. The other numbers are lower and would reflect either different fuels or different test conditions, whereas propane’s energy density in the vapor form aligns with about 3,200 BTU per cubic foot.

Propane gas carries a lot more energy per unit volume than many other fuels, so its BTU content per cubic foot is relatively high. Under standard test conditions, the energy available from burning one cubic foot of propane vapor is typically cited around 3,200 BTU. This higher energy density is why propane burners deliver more heat per volume of gas compared with alternatives like natural gas, and it’s the figure used for sizing and performance checks in HVAC practice. The other numbers are lower and would reflect either different fuels or different test conditions, whereas propane’s energy density in the vapor form aligns with about 3,200 BTU per cubic foot.