lasagna. 1  large, flat, rectangular strips of pasta. 2  a baked dish consisting of layers of this pasta, cheese, tomato sauce, and usually meat.
1 Replacing aging, leaking or inadequate ductwork typically costs about $35-$55 a linear foot for labor and materials, or $1,000-$5,000 or more for a single-family home, depending on the length and type of ducts used (sheet metal, fiberduct or round flexible ductwork) and local rates. And a Virginia homeowner reports spending $450 for DIY installation of modern ductwork in a basement (the least expensive bid for professional installation was $2,500).
1 Expect to pay about $2,000-$8,000 for installation of a whole-house air-source heat pump system in an average home (three-ton capacity) with existing usable ductwork.2  The total costs can double or triple to $4,000-$24,000 or more if new ductwork must be installed or failing ductwork must be replaced. Expect to pay about $2,000-$8,000 for installation of a whole-house air-source heat pump system in an average home (three-ton capacity) with existing usable ductwork.