The Goderich Signal-Star, 1976-10-28, Page 56•
Page 14
v
It's one thing to produc
heat efficiently, but that'
only part of the battle. Th
next important topic i
moving it to where you wan
it.
There' are four basic type
of heating systems:
Warm air. Air is heated and
then circulated through th
house with the help of a fan o
by gravity.
Hot water. Water is heate
and pumped through pipe
and radiators. -
.Steam. Water is boiledt
produce steam which the
circulates through, pipes an
radiators. •
Electricity. - Electricity i
supplied directly to eac
room in the house and sup
plies heat through heatin
elements and radiators.
Warm -air heating is th
most common •'system.
Canada. Cool air is drawn
from the house through th'
cold-air -registers. It i
filtered and a fan forces i
over the heat exchange
where it picks up heat fro
the-firepot. It then -circulate
in. ducts. t� air -'register
throughout the house.
The fan usually starts afte
the burner; and is controlle
by • a thermostat tha
measures the -temperature o
the air in the heat exchanger
You'll notice that the fa
often keeps running afterth
burner has out. Air is stil
being heated; energy in th
furnace -would be wasted if i
shut, down right away. Th
warm -air temperatures. a
which the fan cuts in and ou
are easily stet by a contro
switch on the front or side o
thefurnace .
The serviceman usuall
sets the fan to cut in at 175-20
degrees F (80-93 degrees C
and out at .140-150 degrees F
(60-65 degrees C). This is a
high range. To extract more
energy from the furnace, se
the fan. to cut in at 120 degree
-F T49 degrees C) and out a
100 degrees F (38 degrees C).
The fan will start to circulate
the hot air sooner and will'run
longer after the thermostat
has cut off the burner.
For the last. minute or so. of
fan operation, the circulating
air may feel a little ch{,11y to
someone sitting close. to a
register. You want"the best.
setting for your needs and
may. prefer'•the cut-out
temperature higher than 100
degrees F (38 degrees C).
Lubricate the fan motor.
Give it a squirt of oil two or
three times during the
heating season.
Check belt tension ,and
alignment. There must be
proper alignment between
the pulleys° of the electric
motor and the fan, Belt
tension is. also important.
These items should be in-
cluded in your annual ser-
vicing, but you can°'Tcheck
them yourself as well. (The
diagram of the . swarm -air
r
heating system shows you the
location.)
Before you do anythin
turn off the master po er
switch. Oil the motor and hen
check the belt tension. It
should have t/' to t/2" play
mid -way between the pulleys.
If the tension isn't right,
loosen the adjusting screws
holding the motor frame to
the motor housing. Slide the
motor until the tension is
right. Tighten the screws
(continued from page 19
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around efficiently
with radiant
use ( ceiling cable
with baseboard
or forced air
R7 if ceiling cable used, install
insulation bet. heated areas
II
140
GARAGE
(unheated)
yunheatover nted and'/or
yunheated at
i
crawl space
R7
alt exterior doors shalt be
weatherstripped & caulked
If basement
unheated
grade
•
basement
use
all glass areas
shall bestormed
or double glazed
& caulked
use (R12) in overhanc,
to 24" below grade -
if basement waif
fully exposed
note: use In Interior wall -if
adjing area unheated
0.•
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/2"+'
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