Quick Answer
For whole-house generators, the best type of fuel is propane due to its energy density, lower emission rates, and relatively low cost.
Fuel Options for Whole-House Generators
When choosing a fuel for your whole-house generator, consider the energy density, cost, and environmental impact. Propane is a popular choice due to its high energy density of 4,536 BTUs per gallon, which translates to longer runtime and fewer refills. Additionally, propane has a lower emission rate compared to gasoline, making it a more environmentally friendly option.
Generator Fuel Storage and Handling Considerations
When storing propane for your whole-house generator, ensure that the tanks are designed for outdoor use and installed at least 10 feet away from any combustible materials. Regularly inspect the tanks for any signs of damage or leaks, and maintain a minimum of 12 inches of clearance around the tank. It’s also essential to follow local regulations regarding generator fuel storage and handling.
Whole-House Generator Fuel Costs and Runtime
The cost of propane for your whole-house generator depends on the size of the generator, the frequency of use, and local fuel prices. A 20-kilowatt propane-powered generator, for example, can burn up to 12 gallons of propane per day, resulting in a daily fuel cost of approximately $30 to $40, assuming a propane price of $2.50 per gallon. This translates to a monthly fuel cost of around $900 to $1,200.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.