Cooperative Living September 2014 - 29
Turn off the electric power to the heating
unit at the circuit breaker panel.
Remove its side cover to gain access to the
blower. Using a vacuum cleaner brush
attachment, clean any dust deposits off the
blower. You may find bearing oil cups on
the blower motor of older systems. Put a
drop of oil in each cup.
If you can find the fan control switch,
adjust the temperature setting lower. Common
settings are on at 135 degrees and off
at 100 degrees. You might try using 110 and
90 degrees. This starts the blower sooner
and keeps it running longer as the heat
exchanger heats up and then cools down.
This may cause a slightly chilly draft when
it starts and stops, but it will extract more
heat from the system. If you have trouble
identifying the fan control switch, call a certified
technician and wait for assistance.
Replace the cover and make sure all the
cabinet screws are tight. While you have the
screwdriver or wrench in your hand, check
the tightness of any cabinet screws you can
find. Having the cabinet well-sealed
improves efficiency by maintaining the
proper air flow through the coils or over the
heat exchanger surfaces. With a heat pump,
also check the cabinet screws on the outdoor
condenser unit.
Set up the thermostat so the furnace
starts. Hold a stick of lighted incense near
all the joints in the ductwork, both return
and supply air ducts, to check for air leaks.
If you find leaks, wipe dust off the surfaces
and use mastic around the leaking joints.
This is a good time to change your furnace
filter or clean a central air cleaner element.
Consider installing a more effective
filter element than the low-cost fiberglass
ones that many systems use. This may not
help indoor air quality much, but it can
keep the air-flow paths cleaner for more
efficient heat transfer.
Check the accuracy of the wall
thermostat. You may actually be keeping
your house warmer than you realize. Tape a
bulb thermometer on the wall next to your
furnace. Check the thermometer reading
when the furnace shuts off and note the
difference between it and the thermostat
setting. Now you will know where to set the
thermostat to get the indoor temperature
you desire. If it is inaccurate, replace it with
a new electronic setback model.
Send questions to James Dulley, Cooperative
Living inquiry, 6906 Royalgreen Dr., Cincinnati,
OH 45244 or visit www.dulley.com.
September 2014/www.co-opliving.com
27
http://www.dulley.com
Cooperative Living September 2014
Table of Contents for the Digital Edition of Cooperative Living September 2014
Cooperative Living September 2014 - 1
Cooperative Living September 2014 - 2
Cooperative Living September 2014 - 3
Cooperative Living September 2014 - 4
Cooperative Living September 2014 - 5
Cooperative Living September 2014 - 6
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