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.
Quick Answer. As of 2014, a building owner can expect to pay between $5,000 and $11,000 to replace the residential HVAC system. The cost of replacing an HVAC system varies greatly. The type of system, installation costs and any necessary changes or modifications to the structure can dramatically affect the cost of replacing the HVAC system. Keep Learning.