Weeds that keep sprouting can drive home gardeners to despair. But how can the green be removed permanently and effectively from the joints of patio and pavement slabs? It is very easy to keep them clean with hot air weed killers. In this article you will learn how to use them correctly and how they work.

Destroying weeds with hot air is particularly suitable for spot control

What are hot air weed killers?

With these electrically operated devices, the weeds are destroyed by means of hot air and not by a flame, as is the case with gas-powered weed burners. The heat causes the proteins inside the plant to coagulate and the cell walls to burst. As a result, the weed dies down. The hot air flow also reaches the roots and damages them, so that new growth is greatly reduced.

How environmentally friendly is this technology?

Although hot air weed killers require electricity, apart from that they are very environmentally friendly. The jet of air, which can be up to 650 degrees, is directed at the weeds for just a few seconds, which then dry up and can simply be swept away.

Unlike gas appliances, the plant initially looks relatively intact after heating. Don't let this fool you: after a few hours or days, it will wither.

What are the advantages of the devices?

  • Since there is no open flame, these devices are considered safer than those that run on gas.
  • The thermal destruction protects the joints.
  • In contrast to weed removal with the joint scraper, no joint sand has to be sprinkled after weeding has been completed with the hot air tool.
  • Since the hot air flow can be used in a targeted manner, ornamental plants in the immediate vicinity are protected.

Are there any disadvantages?

When using the hot air weed killer, you are dependent on electricity. The extension cable required for this limits the working radius. Therefore, these devices are rather unsuitable for very large plots of land.

If necessary, several applications are necessary until the weed finally dies.

tips

Hot air weed killers often have practical additional functions. With some devices you can light the grill, remove paint and varnish and even de-ice objects.

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