Evening star., 1941-07-26
Dual Purpose Window
Is Bar 10 Insects,
Aids Ventilation
Modernizine Heating
Plant in Summer
Is Suggested
Nv LAWRENCE CROLIUs.

BY LAWRENCE CROLlUS.
Are your screens holding up
against flies and other insects? Are
the old screens you put up to carry
through this summer doing the job,
or are large gaps appearing through
which insects find their way? If
you find your screens are failing the
chances are that you will wait to
Ak them up until next year. Just
the situation the bugs and flies have
been waiting for!
Why wait?
A new dual purpose window unit
has been introduced which COM
btnes sturdy screen for summer use
with replaceable glass panel for
storm sash to protect against cold
winter winds. If you install these
new units now YOU can enjoy an
tnSectless summer and fall, and
when it gets cold you merely take
out the screen and replace 1t with
glass panel.
Simple to Install.
The units are installed by putting
one large metal outer frame in
place over the entire window. The
top section of the frame has fixed
and permanent glass panel in
stalled, and the lower panel con-
tains the removable sash and screen
panels. These panels are custom
built to fit each window snugly and
are, according TO the manufacturer,
less expensive than separate sash
and screen. They are easily and
Cheaply put in place. and are
equipped with an adjusting arm at
the bottom on each side so that
the whole unit may be tilted out at
the bottom for ventilation in winter.
The fixed panels at the top also
serve a double purpose, because in
the summer they help to insulate
that half of the window against the
heat by presenting a layer of dead
air space. Obviously, the same idea
holds true for the entire window in
cold weather, and the makers claim
II will reduce heat loss from 20 to
80 per cent. If you want additional
ventilation in summer you can pull
down the main sash from the top
and the air will rush up through the
chimney-like opening between the
two layers of glass This stunt is
particularly effective in a driving
rain because even with the main
lower sash securely closed air can
pass up behind the fixed panel and
give you cool breeze through the
opened main top sash.
The panels are easily interchanged
and the rugged metal framed panels
may be stored
Heating Plant Check Urged.
Now is the time to think about
modernizing your heating plant if
IL Is In dubious condition, because
heating men usually aren't busy in
the summer. 1t may cost less now,
too.
If you have an d-fashioned
gravity hOt-alr furnace it can be
converted into a winter air condi-
tioning system. This can be brought
about at moderate cost, and not only
will YOU enjoy better heating all next
season. but because of the increase
In operating efficiency it should cost
considerably less to heat your home.
A new conversion unit is avail
able for installation on almost any
type gravity hot air furnace. 1t
cleans the air, which is pulled down
from upstairs via return duct of
sheet metal, blows it over the heat
Ing surface of the furnace, and forces
1t upstairs again to every room
equipped with supply duct and
register.
The unit is built of steel, and
consists of a good looking cabinet
which incloses a powerful blower
unit. The cabinet is finished in
hammered silver finish which will
add considerably to the appearance
Of your basement game room.
The blower, equipped with self
llbricating bearings, is quiet In
opera ton. It's powerful motor Is
mounted on top with sound dead
ening rubber supports. 1t has a
capacity of $50 cubic feet per minute
for 18 and 20 inch. furnaces, with
an output of $1,000 B. T. U. 1t is
driven by V-belt with an ad-
Unstable speed pulley on the motor.
The filter, which Is mounted in the
blower cabinet, is of the self-sealing
type, and is easily removed and re-
hewed.
Note-For further information
about any of the products de-
scribed here, write Mr.. Crolius,
The Evening Star. and inclose a