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
THE LIGHT TURNS ON THE DOOR
Not too cosy feel in the evening opening the door in the unlit apartment. You have to fumble along the wall in search of switch risk anything to trip or stumble. And if you make it to...
HOW TO REPLACE THE GRILLE?
The ventilation grille is not very decorate your kitchen, no matter from which it was made of metal, plaster or plastic. And if you have a gas stove, just a few weeks, the lattice turns...
