Wakulla Spring is one of the largest springs in the world, discharging an average of 260 million gallons of water per day. The spring pool is an impressive 315 feet in diameter, and the huge vent is about 82 feet wide, 50 feet high, and 185 feet deep.
Typical costs: Replacing an old oil-fired furnace with a new one typically costs $2,000-$5,000 for a simple installation of a basic model, but it can cost $6,000-$10,000 or more for a larger, more energy-efficient unit with a difficult installation, such as a complex floor plan or hard-to-reach ductwork.
1 With existing usable ductwork, replacing an oil-fired furnace typically costs $2,000-$5,000 for a basic installation, but it can be $6,000-$10,000 or more for complex installations. It typically takes a day or two to replace the heat source in an existing central heating system, and a week or more to install a new central heating system, depending on the size and layout of the house and the complexity of the system.