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Everything You Ever Wanted To Know About Water Heaters
Water heaters are an obvious danger if not well maintained. They can
set a fire, release scalding hot water and worse. It's a good idea to
understand some of the basic issues involving water heaters and their
maintenance.
The main issues for you to focus on: They can be a water, gas or fire hazard and in earthquake country they are a safety issue.
Water Shut Off Valves
Damage to homes caused by burst pipes is an expensive problem. By the
time a homeowner returns to discover the problem, hundreds of gallons
may have flooded the home. Not to mention being sprayed with scalding
hot water, since many heaters are still located in kitchens and other
areas that people frequent.
Temperature/Pressure Relief Valve this releases water if it senses
excess pressure, generally because the temperature is set too high.
Attached is a tube that should direct hot water away from people. This
tube should connect to a drain or to the exterior. Some plumbers
suggest a five gallon bucket to hold excess blow off.
Automatic shutoff valves are available to prevent extensive water
damage from plumbing failures. These valves use sensors to control
water flow and avoid flooding caused by the domestic water supply.
There are two types of systems
Whole house systems are designed to turn off the water near the service
valve to completely stop the flow of water to every faucet and pipe in
the home once a leak is detected. Other systems are designed to be used
with a specific appliance.
Fire Hazards
Earthquake Country creates dangers for water heaters. Laws are in place
that require all water heaters to be strapped down using "plumbers
tape". This is a heavy duty metal strap that states will require for
all water heaters. It will prevent the water heater from falling over
and breaking the gas pipe or spilling as much as 40 gallons of scalding
water. It should be strapped and bolted to the floor to prevent all
movement. Check with your state for the requirements.
Carbon Monoxide Poisoning
Water heaters use gas to heat a tank of water. They need to be well
ventilated to prevent the build-up of dangerous gasses that can kill.
All heaters must be vented use a flu that generally goes to the roof.
Any blockage of the flu or lack of oxygen in the area that the heater
is located is a danger.
Gas Leak
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Weak smell: Open a window and wait until the odor leaves. Then
re-light the pilot light. Many gas and electric companies will make
free calls to light the pilot light.
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Strong smell: Natural gas has a garlic-like odor; if you smell this or
suspect a gas leak, don't light matches (or a lighter) and don't
operate electrical switches (they could ignite an explosion).
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Ventilate the house, open windows
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Don't hang around, leave your home
What Not To Do
- Do not install in closets or small rooms
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Do not install in small rooms where there may be a limited amount of oxygen
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Do not go near tanks that are spraying heater water that is at 210 degrees hot
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