Liquefied gas stoves save money. Liquefied gas stoves use liquefied petroleum gas as fuel, which is economical and practical. Alcohol stoves use alcohol as fuel. Although the price is low, the combustion efficiency is low, and more fuel is needed to complete the same cooking task. Vegetable oil can also be used as fuel for outdoor cooking, but it is not as economical as liquefied gas stoves. Therefore, from the perspective of saving money, liquefied gas stoves are more economical.