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Make Clothes Dryer More Efficient
by Recycling the Heat
by Donald Grummett
As the cost of electricity continues to skyrocket consumers are looking
for new ideas to help get the most value out of their appliances. This
includes the electric clothes dryer.
Although consumption cannot be lowered there is a device to take
advantage of the heat it produces. It is called a dryer heat recycler.
It has proven to be a winner in the fight to be more energy efficient.
A heat recycler does just what its name indicates. It allows the warm
air from the household electric clothes dryer to be redirected back into
the laundry room. This is an added bonus if the laundry room is in a
cold basement. Plus the heat is free.
The theory behind the recycler is simple. It uses the hot air from the
electric dryer to heat the laundry room. In this way the room vent can
be closed down. Hence lowering your heating costs.
The element in an electric dryer is approximately 5000 watts. This is
equivalent to a couple of baseboard heaters. The temperature of the air
leaving an electric dryer is about 130 degrees Fahrenheit. So why waste
it - instead, put it to work for you.
For an investment of about $15 the hot air your dryer normally dumps
outside can be directed back into the house. We have been successfully
suggesting these to clients for years.
There is a plastic handle on the side to direct the air either inside or
outside. In the winter months the handle is adjusted to direct the hot
air into the house. In the summer the air is directed back outside.
The heat recycler is easy to install. It is usually mounted (screws are
provided) to a wall or beam behind, and slightly above, the dryer
console area. Once mounted the dryer venting can be cut and reattached
to the device. Follow the instructions to maintain proper airflow
direction. The recycler does have an "in" and an "out". Always mount the
recycler for easy access by all family members. If mounted in an awkward
place no one will clean the filter.
Before purchase make sure the model you buy comes complete with two
venting clamps. Some less expensive ones don't include the clamps.
Clamps are vital for a proper installation. Do not be tempted to attach
the venting sections to the recycler with duct tape. It will dry out and
cause the venting to fall off. If required invest in two good quality
metal vent clamps. A couple of four-inch clamps will cost about three
dollars.
The recycler has a built-in filter screen that needs to be cleaned just
like the one inside the dryer. We prefer the type that has a mesh screen
filter as opposed to the one with a sock-like filter. It is a couple of
dollars more but the metal filter is more durable and a lot easier to
clean than the cotton type.
So once the recycler is mounted and secured give it a test run. Set the
temperature selector to hot and start dryer. Allow dryer to run a few
minutes. Test that the air comes inside when the handle is in the winter
position. Next, move handle to summer position. Air should then be seen
to go outdoors. Go outside and confirm air freely escapes outdoors. If
not the screen in the outdoor vent cap may be blocked with lint. Or the
vent cap flapper valve may be sticking. Go back indoors and test all
joints for air leakage. If leaking air, tape joints with duct tape.
From then on all that is required is to clean the heat recycler filter
every few laundry loads. Plus, twice a year turn the handle to redirect
the airflow. Not much work to get all that nice free hot air for your
home.
Note that throughout this article I have been using the term electrical
clothes dryer. The heat recycler cannot be used with a gas clothes
dryer. The venting pipe of a gas dryer must not be opened or redirected.
Small amounts of gas vapour and carbon monoxide may be present in the
outlet air of a gas clothes dryer. Therefore, for safety reasons, the
heat recycler cannot be used with a gas dryer.
TECHNICIANS HINT: Experience has taught us not to mount the recycler
directly above the start switch of the dryer. This avoids the recycler
giving you a blast of hot air in the face every time the dryer is
started.
About the author
Copyright 2005 by Donald
Grummett. All right reserved. Donald Grummett has been in the trade over
30 years as a technician, business owner, and technical trainer. Visit
http://www.mgservices.ca to learn more invaluable information about
your appliances.
Article Source:
http://EzineArticles.com/?expert=Donald_Grummett
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