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.
Our free calculator uses recent, trusted data to estimate costs for your Gas Furnace Installation project. For a basic 1 furnace project in zip code 47474, the benchmark cost to Install a Gas Furnace ranges between $1,659.78 - $2,177.35 per furnace.To estimate costs for your project:1.or a basic 1 furnace project in zip code 47474, the benchmark cost to Install a Gas Furnace ranges between $1,659.78 - $2,177.35 per furnace.