Few people realize that many things that have outlived their time can be turned into those that will be useful in another field. For example, some experienced travelers and outdoor enthusiasts know how to create a compact heater from an expired oil filter. If desired, a miracle device is created in a matter of minutes, and it will serve faithfully for more than one trip.
What you need: used oil filter, thread lock, paint can, six round head screws, coin, fire source.
The first step is to ignite the oil filter in an oven or over a fire. This is necessary so that all residues of oil and paint burn out in it. As soon as the object cools down, we arm ourselves with a grinder and cut off a steel ring from it. We remove from the inner space the remnants of the filter element (they will carbonize), the spring, the safety valve and other removable elements.
For further work, we only need a metal case and a ring. In the upper part of the former filter, using a drill, we make holes in the upper part of the case on each of the edges. Next, using a drill, we drill out the spot welding spots in the bottom. In the holes made with a tap, we make a metal thread.
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We screw one screw with a round head into them through one hole. After tightening them, cut the hardware from the back side. All parts can be coated with heat-resistant paint during operation. The cover of the filter element must be pressed into the base, and a coin or a steel disc of a suitable size must be pressed into its central hole.
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Now you can grind the outer sides of the case, after which the base of the heater is installed with three screws. The heater is ready. The best fuel is tea candles. A detailed assembly process in the video below.
Continuing the topic, read about 10 hidden uses for dishwashing spongesthat allow you to use them in unexpected ways.
Source: https://novate.ru/blogs/020120/52930/