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.
Only electric hot water heaters use heating elements to warm the water inside the tank and provide hot water to the home. Gas-fired models have a burner at the base of the heater that warms water inside the tank. Heating elements typically last for several years, and hot water tanks outlast the elements. You need not replace heating elements periodically, only when symptoms arise.