Evening star. [volume] (Washington, D.C.) 1854-1972, 1931-11-08

The unheated automobile, even
among open models, may still be in the
majority this Winter, but in the eyes
of discriminating motorists who know
the comfort and safety of warmth 1t
will be as definitely outmoded as a
parked car with lap robe over its
radiator. To meet the anticipated de-
mand for heaters number Of addi-
tional firms have entered the field, and
every heater maker is Offering new and
strikingly improved models.
Allows More Fresh Air.
Accelerating the movement toward
heat for the car in cold weather is
the realization that when a car is
warmed the OCCUPANTS are enabled to
allow more fresh air to enter the car
The fear that heating equipment would
be unhealthy in an automobile, espe-
cially closed car, has not been borne
out in practice. Drivers whose feet
end hands are comfortable never are
seen driving along with the windows
closed, as is so often the case with I'M
heated cars
While changes In heating apparatus
for the car have been numerous in the
past few years, many of the latest i'm
provements are not well known. Much
OF the success of any heater also hinges
on care and skill in installation. Until
very recently the difference in the de-
sign of cars has not received proper
consideration, with the result that heat
ers have not been uniformly success
full.
The rapid growth of hot-water heat
ers has been due, in part, to their OBJ
vious freedom from any possibility of
exhaust smells, but motorists consid-
ering improved heaters this year should
not overlook the betterments made in
the hot-air type heaters. The air heaters
in their more advanced form are most
effective with the modern high-com-
preston motors, but require more ex-
tensive installation and are priced
higher than some of the best water
heaters. 1t Is point worthy of utmost
consideration to select heater in &C
cordance with needs.
Physicians Needs.
physician last Winter needed more
or less constant heat on the short runs
between patients homes. He selected q
hot-water heater and had the fan belt
removed from the motor. The result
was constant warmth in the car. A
tourist, on the other hand, equipped his
car with hot-air heater, drawing
warmth from around the exhaust pipe
AT road speed he was able to obtain
such a wealth of heat as to be able to
open the windows and enjoy the crisp
air without discomfort.
Many people make the mistake of Sc
Letting an oversize hot-water heater, or
using two or three heater units, when
the cars cooling system is already too
generous. Instead of obtaining more
heat by this process the driver finds he
is unable to raise heat to the desired
point for comfort. It is important to
select a heater recommended by the
manufacturer of the car, or one which
the car dealer has found through ex-
perience to be practical.
One of the improvements Of the pres
ent season is the development Of spe-
cial type thermoStat, which, inserted in
the extended circulation system, retards
movement Of the water sufficiently to
raise the temperature. Such thermo-
stats are expected to play an important
role this year in making heaters more
effective. Doubtless some experience
will be needed to demonstrate Just how
these thermostatS will function with
some Of the more viscous types Of anti
freeze.
The latest hot-water heaters are