Yellow fever is a disease caused by the bite of the Aedes aegypti mosquito. It does not occur in the U.S. but is common in parts of Africa and South America. The symptoms of yellow fever include fever, chills, headache, backache, nausea, and vomiting; jaundice can also occur.
Does my hot water heater work when the power is out? I have natural gas to heat the heater but I am wondering if it also needs electricity to run. We lost power and the water was still hot days after losing power. Was the water still hot from when we had power or does the heater still work without power? 1 following.
If you have your power out for some days and still have real hot water, chances are you have the natural draft water heater that does not require electricity for ignition. Good luck. By disconnect power they mean  interrupt the power supply to the waterheater which you can do simply by turning off the breaker to the water heater.