How would i make a procedure to determine how efficient different types of fuel are?

you have three samples of fuel which are methanol, kerosene, and wood. all the fuels are flammable. we need to figure out which type is the most efficient at heating somethign or providing light. we can use any materials that would be commonly available at your house or in a high school science lab. also need error analysis and an explaination on how to control these errors and still get satisfactory results. thank you!