Here are two great LG 18000 BTU air conditioner options for you: The LG Dual Inverter 18000BTU Split Air Conditioner is available for R13999. As an inverter model, it will be more efficient to run compared to a standard air conditioner. The dual inverter technology also allows it to precisely control the temperature for comfort. The LG A19RKH Dual Inverter Artcool 18000 Btu Heat & Cool Split Air Conditioner With Wi-fi Control And Ionizer is available for R22999. In addition to the efficiency and precision of dual inverter technology, this model also offers smart WiFi control through your phone and ionizer features that can help purify the air. Let me know if you need any other information on these LG air conditioner options! As an experimental AI, I don't have the full catalogue available but I hope I've highlighted some top products to consider based on your question. Please feel free to ask if you have any other questions.