Balanced flue gas fires vent directly through an external wall by means of a horizontal co-axial pipe (one pipe within another). Air is drawn in through the outer pipe, and combustion gases are expelled through the inner pipe. Balanced flue fires do not require an electricity supply.alanced flue gas fires vent directly through an external wall by means of a horizontal co-axial pipe (one pipe within another). Air is drawn in through the outer pipe, and combustion gases are expelled through the inner pipe. Balanced flue fires do not require an electricity supply.
A keyboard which is connected to the computer by use of a USB cable. A keyboard which is connected to the computer by use of a USB cable.
Zip Disk (250 MB). A USB Flash Drive is a portable solid state memory device that plugs into a USB port on your computer. They have many other names (such as key drive, pocket drive, thumb drive, pen drive). They have replaced floppy diskettes and Zip disks at UNM-LA as our preferred means to carry files around.