How Long Does a Hot Water Heater Last?
Most homeowners are not sure when to replace
their hot water heater. They believe that once a heater starts to break down,
it is time for replacement. Others keep their water heaters for so long that it
becomes too expensive to maintain. The length of time that it takes to replace
the water heater differs from one heater to the other as explained below.
Water heaters are generally not made to last for
more than 15 years. Most brands will start malfunctioning by the end of their
tenth year and may need a replacement. Moreover, the longevity of a heater is
also determined by the type of material used. The quality of maintenance of the
heater also determines its effective life.
Heaters that come with tanks made of fiberglass
tend to last much longer than the conventional tanks. Some high-end models of
this type come with a lifetime warranty. Unfortunately, when the tanks get
damaged they cannot be repaired and the whole unit has to be replaced.
Most of the low-end heater models come with a
five to six year warranty. It can last around two years after the end of the
warranty period giving it a life of about seven to eight years. Higher quality
models can last for up to three years after their 10-year warranty. These
high-end models come with heavy-duty anode rods that are key to keeping the
inside of the heater in good shape.
Electric versus Gas Water Heaters
On average, electric water heaters last about
two years longer than their gas counterparts. However, this is not always the
case. New gas models have fail-safe components that make them last
comparatively longer and work effectively thereby doing away with the two-year
advantage of the electric heaters. Gas is environment-friendly and a lot cheaper
per unit of water heated. It lowers the energy bill and the carbon footprint.
When Do You Know It is Time to Replace the Heater?
Age
As said earlier, a water tank that has lasted
for more than 10 years may be heat inefficient even if it does not have any
problems when heating water. Consider replacing such a heater with new more
efficient models. If it is a tank-style heater, you may consider a tankless
model.
Rust and Corrosion
If when you turn your faucets on the water comes
with a tint to it, it may be an indication of rust in your water heater. Most
heaters will first show the rust before they start leaking. Rust is unpleasant
and may damage your clothing and other surfaces that comes into contact with
the water.
Gurgling
This is the sound of an explosion that is common
in the tank-style heaters. The sound comes from sediment buildup. When the
water is heated, these sediments heat up to a point where they explode.
Leakage
With time, the heater starts to get damp due to
moisture buildup. These areas with moisture build-up end up becoming the new
spaces for water leakage. If you start collecting water puddles below your
heater, consider replacing it immediately.
Lack of Hot Water
This sign should be checked along with the signs
discussed above. The heater may fail after using for a very long time or due to
some other problem. However, if the heater keeps failing, is old and has one or
more of the other problems discussed above, consider replacing it as soon as
possible.
The heating element may fail over time making it
unable to heat the water beyond being lukewarm or not heating the water at all.
In such a case, consider replacing the element. If this is not the reason why
you are not getting hot water, the reason could be as a result of a broken dip
tube. The dip tube is the pipe that connects the cold water inlet to the bottom
of your tank. If the pipe gets broken, the hot water is mixed up with the
incoming cold water leading to cold or lukewarm water.
Drain Valve Fails to Drain Water
Over time, sediments may build up on the inside
of the tank-style water heater such that it covers the outlet where the water
drains. You may also hear a popping sound if you are using a gas heater. The
sediments will continue building up until such a point that it will break down
the inside of the tank.
Fortunately, you can deal with the sediment
buildup by having the tank flushed at least once a year. However, there comes a
time when, even with flushing, the sediment problem become unbearable. This is
the time to consider replacing the entire unit.
Things to Consider when Replacing a Water Heater
When it is time to replace your water heater.
There are a few things that you should keep in mind so that you get a good
quality heater that will serve you for a long period. Here are some of the
considerations.
Are you replacing the tank with the same model?
Research on the available tank models and brands
before deciding on the tank to purchase. You may also consider going for
tankless heaters or switching from electricity to gas.
What size will you pick?
Has the previous system been serving you
effectively in terms of providing enough hot water? If you plan to expand the
family or the water was barely enough, consider purchasing a system with a
higher capacity. You may seek professional help to determine the ideal
capacity.
Do you hire a plumber or do it yourself?
There are models you can install on your own.
However, it is generally recommended that you get a plumber to do the work. A
plumber would do the work efficiently and help avoid messy mistakes or even
find other problems in your water heating system.
An ideal water heater is energy efficient,
serves your hot water needs effectively, and lasts long. You should know how
long your water heater can last so that you are able to plan for a replacement
well in advance. The signs above should serve as a warning that it is time to
replace the heater.
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