TWO OPTIONS OF HEATERS FOR AQUARIUMS OFFER OUR READERS. Uniform temperature in the aquarium keeps the water-filled Cycling or any other appropriate size camera. It is placed as shown in the figure.
S. KINDLER, Saratov
Heaters that are commercially available — with a filament and salt, or bulky, or too powerful.
“Semiconductor” heater:
1 — wire bracket, 2 — tube, 3 — sand, 4 — tube, 5 — resistor, 6 — power cord with plug.
Within a few minutes you can make a “heating” coal resistors type MLT, VS-2, MT-2, etc. with a capacity of 2 watts. They are inserted into the glass tube, the ends are attached to power cord with plug and close the vial stopper. The power of the heater can be more than 20 watts.
V. BEDNYAGIN, Novocherkassk
Recommend to read
MOBILE SERVING
In the everyday kitchen, as a rule, plays the role and a dining area for Breakfast and dinner, here, feed the children, because everything is at hand. But to sit at the table with a...
TO WASH WITHOUT THE RISK OF
When washing Windows in the apartment, the main problem is to get to the outer top of the glass. Some desperate Housewives dare to reach them, with cords of climbers, and securing the...
