Standard Gas Water Heater  Replacing and Installing   A newly
installed gas water heater will have some air in the gas line.
It may take several attempts to light the pilot. Follow the
lighting procedure on the label. Make sure the gas supply valve
has been turned on.  Newer water heaters are more energy
efficient and have much smaller pilot lights than older models.
You may have to darken the room and look carefully through the
sight glass to see the pilot.  If you are replacing the water
heater yourself, get an Installation Kit. Most replacements
require the use of common plumbing tools, pipe joint compound or
Teflon® tape approved for potable water and fuel gas. If your
house has copper pipes, consider flexible connectors and
compression fittings. For non-professionals, compression
fittings are easier to use than soldering copper pipe. If you do
plan to solder copper pipe, be aware that the water heater
connections may contain non-metallic parts which can melt. Don't
solder copper pipes directly attached t