Thanks for the request for quotes on 18"-22" electric chain saws. Based on the PriceCheck search results, I would recommend considering either the GE-EC 2240 or Makita UC4041A electric chain saws. The GE-EC 2240 is available in two options - one for R1999 with a powerful 2240W motor that would be suitable for cutting thicker wood. It also comes with automatic chain oiling for easier use. The Makita UC4041A is more expensive at R3439 but Makita is a reputable brand and this saw comes with additional features like a dust blower port and side-access chain tensioning for convenience. Both saws fall in your requested 18-22" size range and should serve you well for lighter jobs around the property. Let me know if you need any other details on these options.
