Propane vs wood heat for off-grid cabins — which is more efficient?

Efficiency Comparison

Propane heat is a more efficient option for off-grid cabins due to its higher BTU output and lower energy loss. A typical propane tank with a capacity of 100 gallons can provide 3-4 GCFH (gallons of propane per hour) of heat. In contrast, wood heat typically has an efficiency of 10-30% due to moisture loss, incomplete combustion, and heat loss through the chimney.

Cost Comparison

While propane heat is more efficient, the initial cost of a propane tank and heating system can be higher than a wood-burning stove or fireplace. However, the cost of propane fuel is generally lower than the cost of wood. A typical propane tank can last for 1-2 years, depending on usage, while a cord of wood may last for 1-3 months. To calculate the cost difference, consider the following: a 100-gallon propane tank can cost $300-$500, while a cord of wood can cost $200-$300.

Installation and Maintenance

Installing a propane heating system requires more infrastructure, including a propane tank, regulator, and pipes, which can add to the upfront cost. However, propane systems are generally easier to maintain than wood-burning stoves, which require regular cleaning and chimney maintenance. Additionally, propane systems can provide a more consistent and reliable heat source, especially in cold and snowy climates.