How To Choose A Weed Eater: Things To Consider

The weed eater is must-have equipment for completing the garden, as it goes where the lawnmower can't: around trees, edging walks and flower beds, dams, etc.

Generally, the weed wacker is equipped with two handles: a control handle and a grab handle.

However, the weed eater can be used with one hand. It has a cutting head and a protective hood to keep grass, stones, and gravel from flying out.

The device's engine powers a spool of nylon line, which rapidly rotates to cut the weeds. On average, the cutting width is between 20 and 43 cm. Certain string trimmer types have little plastic knives (blades), a stringless trimmer that replaces the nylon line.

Depending on the model, you can renew the used nylon line from the weed eater in 3 ways:

  • Automatic advance: the thread advances as it wears out.
  • Ground strike advance : tap and go system.
  • Manual feed: by pulling the wire yourself.

The spools of wire have a capacity of 4 to 15 m. The wire diameter varies from 1.2 to 2.4 mm depending on the model and the power of the weed eater.

String trimmer or brush cutter

A brushcutter is ideal for heavy-duty weeding. The motor sits on top, and its power allows you to mow small and medium-sized regions as well.

The weight of the trimmer is greater. As a result, you'll need both hands to manage it and a harness to carry it.

The brush cutter costs more than the weed eater but is more powerful. You may also add extra accessories to it.

What are the different weed wacker?

Electric weed eater

electric weed eater

The electric weed eater edger connects to the power supply. A simple electrical outlet is enough ranging from 300 to 1000 watts.


  • The electric lawn trimmer is lightweight and portable, weighing between 1.7 and 4.8 kg.
  • It is completely quiet and eco-friendly.
  • It is reasonably priced: from $60 to $250.

The inconvenient

  • This weed eater comes with an electric cord, which you should keep in mind while gardening.
  • Compared to a gasoline-powered weed eater, an electric one is less powerful.
  • It has a narrower cutting width: on average, 25 cm.

Gasoline weed eater

gas weed wacker

The gas powered string trimmer is powered by a 22–30 cc 2-stroke (lighter) or 4-stroke (more powerful) gasoline engine. Its 1000 W power lets you cut hedges and bushes easily.


  • This model does not require an electrical connection. As a result, you can trim the hedges away from home. Robust and long-lasting, the thermal weed eater is an excellent choice for edging.
  • It has a bigger cutting width: up to 43 cm.

The inconvenient

  • This weed eater is louder and heavier than the electric weed eater (between 4 and 10 kg on average).
  • It is more expensive than the electric version: from $100 and $800.

Cordless electric string trimmer

cordless weed eater

Cordless electric weed eaters combine the advantages of corded electric weed eaters and thermal weed eaters into a single device.


  • This model does not require an electrical connection. You have complete freedom of movement.
  • The battery-powered weed eater is more convenient than the thermal type due to its reduced weight (1.8 kg to 3.8 kg).
  • The battery life is up to one hour, and charging takes between one and three hours, depending on the model.
  • The battery, located in the upper handle, is simple to remove and replace once recharged.

The inconvenient

  • The battery's weight (up to 1 kg) must be considered.
  • When changing wires on battery-powered weed eaters, pay attention to the rewinding orientation—a second charger doubles (or possibly triples) the weed eater's autonomy.

How To Choose A Weed Eater: Things To consider

The type of grass to cut

  • To perfect the edge of a lawn, a 350 W model is sufficient.
  • To cut weeds after mowing the lawn, choose a model over 500 W.
  • For thick grasses, small brushes or thistles, opt for a brush cutter.

The area of the garden to be cleared

  • An electric or battery-powered weed eater with an 18 V battery is ideal for a garden of less than 400 m².
  • For a garden of 400m² or more, choose an weed eater with a 36V battery or a gas-powered weed eater.
  • If you have a vast garden, choose a professional brush cutter.

The accessories of the weed wacker

Several accessories increase the comfort of using an weed eater.

  • Handles wide enough to be used with gardening gloves
  • A telescopic handle up to 115 cm allows you to adapt the string trimmer to your height.
  • Automatic advance of the wire.
  • A 90 ° swivel head to work from all angles, especially in vertical edging.
  • A stopper (stirrup) at the front of the head to avoid damaging the bark of trees or cutting the trunks of shrubs.
  • A harness for more comfort when mowing.

How to properly use your string trimmer?

Precautions for use

  • Read the instructions carefully before using your weed eater for the first time.
  • Despite the protective hood, you must wear closed shoes, protective goggles or visors, and tight-fitting clothing.
  • Never work on a gasoline weed wacker without removing the suppressor.
  • Always unplug the electric weed eater before handling it.
  • Use an insulated extension cord, essential on wet ground.


  • With a thermal weed eater, you should not keep the gasoline-oil mixture for more than three months to avoid clogging the engine. And the air filter should be cleaned regularly.
  • On all weed eater models, thoroughly clean the line spool and housing after each use, removing any cut grass.
  • Store your equipment in a clean, dry place, away from humidity.

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