Propane vs. Natural Gas: What’s the Difference?

Propane is usually more expensive than natural gas, but the same amount produces about twice as much heat. … In some areas, natural gas is more economical, and in others, propane costs less. Both types of fuel are more efficient and less expensive than electricity in many regions. When it comes to Autogas, propane is the cheaper choice when it comes to price, maintenance costs, and infrastructure.