Using a Mason Jar Olive Oil Lamp?
Cant you just light one and time it? Also would probably vary on the quality of the oil and wick that you use.
Successful Vacation Tips
My friends house was robbed when she was on vacation. Neighbors called 911 and the police got there in time. The thief told them he knew they were gone because they had it on facebook and their facebook was set so anyone could read it.
