BELDT*S AQUARIUM 
SAINT LOUIS, MO. 
NO. 1 HEATER 
PRICE $6.75 
With Cliromalox EJcnieiit 
No. 1. Automatic with pilot 
light indicator has a double sock¬ 
et, and two heaters can be used 
thermostatically for two different 
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. 
Additional heaters, with 
chromalox elements, eacli..!)!4.00 
GUARANTEED 
ELECTRIC AQUARIUM HEATERS 
NO. 5 HEATER 
Price $1.25 
No. 5. These heaters come in 
single watts for following size 
aquariums. Don’t forget to .state 
gallon enpacity of your aqiiariiini 
or wattage rleslred. 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. 
IG to 25 gal. tanks, GO-watt. 
25 to 35 gal. tanks, SO-watt. 
Any of these priced 
at..'(il.l’.'i 
No. .’> 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 hurned out. Price 
of additional elements, each 
35e. Installation of elements 
very simple. Element in No. 1 
heater guaranteed for one 
year. 
GLASS TUBE HEATER 
Glass Tube Heaters 
Built-in P.vrex Tnhes 
These Glass Tube Heaters .are 
supplied with waterproof tops, 
rubber suction hangers, and com¬ 
plete with plug and fi-foot exten¬ 
sion cords. 
6-inch heaters can be supplied 
in following- wattages: 10-watt 
20-watt, 30-watt, 40-watt. 
Price complete, each _ .$0.!t() 
8-inch glass tube heaters can 
be supplied in 40-watt, 60-watt, 
80-watt. Complete as illustrated. 
Each . . .$1.0(1 
ARE BELDT'S HEATERS SATISFACTORY? 
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 :J5c postpaid in 
case it burns out. A very popular 
and serviceable heater for aqua¬ 
riums holding 15 to 35 gallons of 
water. 
Wenatchee, Wash. 
You probably think it odd that I 
should send all the way to your aqua¬ 
rium but I find that your service is much 
more rapid than many of the coast cities. 
Jim Elmore. 
Detroit, Mich. 
The things we ordered arrived safely, 
and thank you for such prompt service. 
Mrs. James Helka. 
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 tbe 
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. 
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 
Built-in Pyrex ’I'libox 
This automatic heater is de¬ 
signed for aquariums from 4 to 
20-ganon 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. $2.1.5 
3 for . (t.OO 
All of Our Automatic 
Heaters Are Fitted with 
Condensers to Prevent 
Radio Interference 
Page 33 
