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.
The Average Cost to Repair A Furnace. Fortunately, the average price to repair a furnace is $258. Once again, this depends on the size and type of furnace you purchased. Despite its low maintenance cost, there are ways to lower this price. During the winter months, change the furnace filter every 30 days.