. 40 *. 
BELDT'S AQUARIUM 
SAINT LOUIS, MO. 
... . ... -i - 
GUARANTEED 
ELECTRIC AQUARIUM HEATERS 
GLASS TUBE HEATER 
NO. 1 HEATER 
PRICE $5.75 
No. 1. Automatic with pilot 
light indicator has a double sock- j 
et, and two heaters can be used 
thermostatically for two different j 
aquariums if desired. Also two 
heaters can be used in one aqua¬ 
rium, that is if the aquarium has 
a capacity of 50 gallons or more, 
two heaters would be necessary 
to heat it efficiently if the very 
large aquariums are kept in cold 
rooms. Each heater will heat 
aquariums from 10 to 45-gallon 
capacity. This immersion heater 
is constructed with a special 
chromalox element. The element 
is guaranteed for one year. No. 1 
outfit furnished complete with 
one heater as illustrated. 
Price _____$5.75 
NO. 5 HEATER 
Price $1.00 
No. 5. These heaters come in 
single watts for following size 
aquariums. Don’t forget to state 
gallon capacity of your aquarium 
or wattage desired. We can supply 
them as follows: 
2 to 4 gal. tanks, 10-watt. 
4 to 5 gal. tanks, 20-watt. 
6 to 9 gal. tanks, 30-watt. 
9 to 15 gal. tanks, 40-watt. 
16 to 25 gal. tanks, 60-watt. 
25 to 35 gal. tanks, 80-watt. 
Glass Tube Heater 
These Glass Tube Heaters are 
supplied with waterproof tops, 
rubber suction hangers, and com¬ 
plete with plug and 6-foot exten¬ 
sion cords. 
6-inch heaters can be supplied 
in following wattages: 10-watt, 
Additional heaters, each. i: 
5 Any of these priced at_ $1.00 
No. 5 heaters can also be sup¬ 
plied to be used on 32-volt gener¬ 
ating plants in 30 and 60 watts at 
$1.50 each. 
NOTICE 
The heating elements in No. 
2 and No. 5 heaters can he re¬ 
placed when burned out. Price 
of additional elements, each 
35c. Installation of elements 
very simple. Element in No. 1 
heater guaranteed for one 
year. 
20-watt, 30-watt, 40-watt. 
Price complete, each .... $0.85 
8-inch glass tube heaters can 
be supplied in 40-watt, 60-watt, 
80-watt. Complete as illustrated. 
Each . $0.95 
Do not compare this new type 
glass tube heater to the old sand 
filled type. The glass tubes are 
strong and can stand 800° F. 
without breaking. The special 
michrome element is entirely en¬ 
closed in copper which is rust re¬ 
sisting and a quick conductor of 
heat, giving this low priced 
heater all of the quality of a 
higher priced article. 
No. 2 HEATER 
PRICE $4.00 
This No. 2 heater is built into 
one unit complete with thermo¬ 
static control, which is enclosed 
in a 6 in. x % in. glass tube. The 
heating element housing is made 
from heavy copper tubing which 
is nickeled, then chromium-plat¬ 
ed. They last quite a number of 
years continually submerged in 
water. A good feature not to be 
overlooked is the fact that the 
heating element can be easily re¬ 
placed for only 35c postpaid in 
case it burns out. A very popular 
and serviceable heater for aqua¬ 
riums holding 15 to 35 gallons of 
water. 
ARE BELDT'S HEATERS SATISFACTORY? 
Kingsport, Tenn. 
I have been ordering from you occa¬ 
sionally for two years and found my 
dealings with you have always been 
pleasant. Mrs. J. W. Harrison. 
Deer Park, Wash. 
I sent to you for an aquarium last fall 
| and have been real pleased with it. 
Mrs. S. Sawyer. 
Norman, Okla. 
I’d like to express my sincere thanks 
for and appreciation of your excellent 
service during the year of 1938. I’ve 
been very much satisfied with your ship¬ 
ments. Michael Ivanoff. 
Walla Walla, Washington. 
It might interest you to know that 
the aquarium, thermostat and heaters I 
bought from you about five years ago 
are all working still. No leaks in the 
aquarium, and the electric equipment 
giving excellent service. 
John Pemberton. 
Youngtown, Ohio. 
I found the heater which you sent 
me most satisfactory. 
Mr. Wallace Dillon. I 
Submerged Aquarium 
Reflector 
This reflector is made to hang 
on the inside in the aquarium. It 
is five inches long and one inch 
in diameter. Besides light, it also 
produces a little heat which 
makes it very practical for tropi¬ 
cal aquariums. Supplied com¬ 
plete with bulb, rubber hanger 
and rubber extension cord. 
Price each.. $ 1.00 
3 for .. $2.50 
No, 6 
The “Watchman” 
Automatic Glass Tube 
Heater No. 6 
This automatic heater is de¬ 
signed for aquariums from 4 to 
20-gallon capacity. The thermo¬ 
stat is set to maintain a temper¬ 
ature of 76° F. However an ad¬ 
justment is possible by turning 
the small set screw on the back 
plate. A fraction turn to the 
right increases the temperature. 
Price each.$2.00 
3 for. 5.oo 
All of Our Automatic 
Heaters Are Fitted with 
Condensers to Prevent 
Radio Interference 
Page 34 
