1 Lug, a protrusion of a firearm's bolt that locks it into the receiver or barrel.  Lug, part of a drum used in conjunction with tension rods and counter hoops to tension the drum head in relation to the shell.
1 For a 1,000 square foot home, the cost of an HVAC system is $6,000 to $12,000, including a new furnace, air conditioning unit, and ductwork.2  For larger homes and more complex setups, however, the price could be significantly higher.VACâshort for Heating, Ventilation and Air-Conditioningârefers to equipment that is used to regulate the temperature, humidity and air quality of a residential or commercial building. In this guide youâll learn more about the components of a home HVAC system in addition to how much it costs to install one.
Upgrading your existing HVAC system or installing an HVAC system to a new building can greatly vary from a few thousand dollars to over $10,000. The size of the unit, efficiency, home size and the need for additional duct-work all influence the overall cost of the HVAC system. 1,500 square-foot home that is a new construction will run between $5,000 to $7,000. The need for additional duct-work increases the cost of the installation. About 1/3 of the cost is attributed to the actual unit, while 2/3 of the cost goes toward the installation.