Evening times-Republican. [volume] (Marshalltown, Iowa) 1890-1923, 1916-02-08

JustifabHe complaint Of parents of
Rogers school children that the build
ing was very poorly ventilated and a
fertile spot for contagion no longer
has ground to stand on. Since this
complaint was made and a committee
Of citizens was appointed TO call to the
boards attention the need of a sys-
tenn of ventilation, such a system has
been installed. II has worked wond-
ers
This forenoon the school board and
as many of the parents committee as
could be induced to go visited the
building and inspected the ventilatins
plant. They found it adequate and the
building spfendidly ventilated
Steam Blast System.
Briefly described the system, which
was installed hast fall and has been in
operation for month, is one that
draws fresh air from out Of doors
warns. and washes, and heats IL, and
drives it into the rooms. The foul air
is Withdrawn by suction drafts thru
venEiIators that open above the roof.
Thermometers placed at different
places in the ventilating plant shows
the progress of the air and the result
OF the treatment Il received. This
forenoon, at the outdoor intake. fresh
air was being taken in at tempera-
ture of - above zero.
Is Washed and Pressed.
After that the air is literally washed
and pressed before being delivered in
to the school rooms. II is first drawn
over steam coils that raises It to a
temperature OF Sc. In order TO give
the air the right amount of moisture,
and to remove from it dust and dirt
particles, the air IS driven thru a
spray Of water. driven by small
motor. that splashes from Jets IN tiny
waterfalls. This process humidIhes,
cleauses, and reduces the temperature
air IS then driven over coils OF pipe
heated with steam that raises the TEN.
perature TO - or higher
DeIivs.Sd With Drausht.
In the chamber into which this re-
heated air is delivered are large ducts
thru which the air IS carried to all the
rooms. A large motor driven fan fur
nished the draft
The air IS delivered into the rooms
AT a height II EIGHT faet above the
floor. The foul air !s removed TIM,
ducts in the walls near the floors, and
the artificial draft for them Is fur !
nished by ream-heated radiators !
placed IT the ducts. The process |;
ernpties and -eflIs a scnooI room witt, |
air in from seven 20 ten minutes.
There Is 20 draught 81 the rooms.
Temperature a. 70 Dec ree..
Thernoue- e-s have been placed n
all The rooms. and -le teachers are
keeping a record o. the temperature
at stated hours. Experience Of the Few
weeks has proved that the tempera-
ture Of a room can be brought up
quickly 70 70. which IS the warmth ,
wanted. and kept there. A check OF !
the thernome teTs n the different |
rooms showed a variation Of only two !
or three degrees from this mark this
forenoon
A noticeable tetaa was the sor.
warmness Of the air in the building,
described best by comparing Il 70 mild
summer heat The old steam plant Is
not being used except sometimes on
very cold mornings for auxiliary heat
ing.
The new systerr ,s known as a, steam
blast OF combined heating and ven
tilation. Il was designed and in
stalled by the c. A. Durham COMPANY.
and cost about 80, 600.
Miss Della Winery, the principal,
said the installation Of the ventilating
system had made remarkable differ
ence IN the condition OF the building.