Making an eternal log from a metal pipe: saving firewood up to 50%

If you have a summer cottage, a bathhouse, then you have to use a wood-burning stove. Most of the heat escapes to the street, into the chimney. You need to constantly throw the next armful of firewood into the stove. How to save on firewood? There is one interesting trick. On the Internet, she caused a lot of positive and negative reviews (50:50).

Eternal log. Some believe that it can save up to 50% of the cost of buying firewood. To make such a "miracle" you need a metal pipe with thick walls, 76 mm in diameter. It must be made so long that it fits into the firebox (like a piece of wood).

You also need to cut out 2 circles from a sheet of metal with a diameter equal to the diameter. pipes. Now you need to weld the edges. Another important point - you need to make the legs - weld metal legs from the corner (10-12 cm).

Next, we make holes in the upper part of the pipe. It is advisable to drill many small holes rather than large ones. We make another hole through which we will pour water. Drill a hole and weld on the nut. A bolt screwed onto a nut is a cover.

Now you can save firewood. The iron log is filled with water. You can pour boiling water. Do this carefully so as not to burn yourself. Screw in and place the eternal log on the bottom of the stove. Cover it with wood on all sides. Heat the oven as usual.

The liquid will turn into steam and the eternal log will start working. But the log is not suitable for a brick stove with a duct chimney. Condensation will form. Therefore, this method is only suitable for a potbelly stove (a stove with a straight chimney).

How does it help you save on firewood?

The author of the invention claims that the burning time in the furnace increases (up to 40-50 minutes). As a result, little firewood is required. The heat capacity of the formed steam is higher. This is stated in the handbook about the specific heat of liquids.

Air and steam in the stove forms a mixture of higher heat capacity.

This method must be used carefully. The steam acts as a heat transfer enhancer and acts as a binder for the ash.

From the inside on the walls of the furnace, the ash will harden, which will impair the heat transfer. You just need to clean the oven more often. Another minus: the flue pipe burns out faster. Therefore, the invention is beneficial to use only in cold weather, not constantly.

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