Appliance Venting Faulty
Problem: Inadequate air supply
Background: Gas appliances such as furnaces, water
heaters, space heaters, and gas logs, must be connected to
a flue vented to the outdoors and have an adequate
fresh-air supply. If vents, flues, or chimneys are not
kept clean and in good repair, toxic carbon monoxide can
Monoxide in Home. Signs that indicate a gas appliance has an
inadequate air supply may include indoor condensation, a
yellow or wavering flame, soot in your home, a gas smell,
over heating, sick houseplants, or a pilot light that
keeps going out.
What to do: Turn off the appliance and call a
technician if you have any of the symptoms of carbon
monoxide poisoning, which include: an aching head,
smarting eyes, ringing ears, nausea, weariness, or
frequent yawning. If you have weatherized your home with
caulk and weather stripping, and have closed off the
normal air flow through walls, at tics, windows, and
doors, you may need a fresh-air intake duct to pro vide
sufficient oxygen for your furnace. A heating contractor
can in stall one for you.
Special advice: Make sure flues and chimneys are
kept clear of debris such as nests, branches, or ivy.
Avoid blocking air vents, valves, or controls if you add
insulation around the water heater. Don’t cover the top of
the heater or the space between the floor and heater.
Helpful hint: To make
sure your home is safe, hire a qualified heating
contractor to inspect and tune up your gas furnace and
water heater each year and check any automatic vent
dampers in use.