Nunc Pro Tunc. The Latin term nunc pro tunc translates literally to ânow for then.â This term is commonly used in the U.S. legal system to signify that a court ruling or order applies retroactively to a ruling made at an earlier date. The most common use of nunc pro tunc is to correct clerical errors, or accidental omissions made by the court in a written order or ruling. To explore this concept, consider the following nunc pro tunc definition.
1 The typical gas furnace cost is $3,000 to $6,000 installed, although higher efficiency models and/or complex installations could push the cost up to $7,500 to $10,000 or more. 2  Oil furnace cost is roughly $2,500 to $5,000 installed, but similar to gas furnace prices, itâs not unheard of to spend $10,000+. Efficiency: Furnace efficiency measures how much fuel a unit converts to heat, and how much is lost up the chimney. 2  The national minimum efficiency standard is 78%, while some new models are up to 98.2% efficient. 3  The latter cost more, but will cut fuel costs and are better for the planet.
1 The typical gas furnace cost is $3,000 to $6,000 installed, although higher efficiency models and/or complex installations could push the cost up to $7,500 to $10,000 or more. 2  Oil furnace cost is roughly $2,500 to $5,000 installed, but similar to gas furnace prices, itâs not unheard of to spend $10,000+.he actual cost of a new furnace is subject to vary based on your location, the product selected, the complexity of the installation (i.e. whether the existing ductwork and exhaust flue also need to be upgraded), and other factors. 1  A wall furnace averages $750 to $1,500 installed.