Natural gas has the highest BTU content when burned.
It depends on the cost of electricity and the cost of natural gas in your area. Generally, using a 5000 BTU natural gas heater is cheaper than using a 1500 watt electric heater. Natural gas is typically more cost-effective for heating compared to electricity.
btu of natural gas to btu of propane
102,000 BTU = 1 ccf
Ther are 1,050 BTU in one cubic foot of natural gas.
Typically, use 5 * the volume in cubic feet to get BTU/hour for natural gas heaters. For this shop, that works out to 180,000 BTU/hr. Lower ceilings would make a big difference here...
natural gas
No, it is not recommended to use propane in a natural gas Dearborn heater. Dearborn heaters are designed to work with natural gas fuel, not propane. Using propane in a natural gas heater can cause safety hazards and damage to the heater. It is important to use the correct type of fuel specified by the manufacturer for safe operation.
The average BTU output of a 50-gallon natural gas water heater typically ranges from 30,000 to 40,000 BTUs per hour. This capacity allows for efficient heating of water, providing ample hot water for household needs. The specific BTU rating can vary based on the model and manufacturer, so it's advisable to check the specifications for the exact figure.
138,700 btu's
Federal Energy Regulatory Commission
Specifically 1013.2 btu per standard cubic foot, for pure methane.