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.
1 A new furnace in a central heating system costs $2,500 to $7,500 or more. 2  If you donât need ductwork, the cost of a new heating and cooling system can be significantly decreased.3  In cases where new HVAC duct is required, however, you might pay $1,000 to $3,000. A new furnace in a central heating system costs $2,500 to $7,500 or more. 2  If you donât need ductwork, the cost of a new heating and cooling system can be significantly decreased.