How To Size & Choose a Compatible A/C Unit

  • Air Conditioners MUST have a Digital Display and Automatic Restart
  • °CoolBot is COMPATIBLE with Window and Mini-Split Air Conditioners - see Compatibility List for brands
  • °CoolBot is NOT COMPATIBLE with Portable A/Cs*, Central A/Cs, RV A/Cs, Roof-mount A/Cs, PTACs or Cassette type Mini-Splits
  • SIZE your A/C following our Quick Reference A/C Sizing Chart or our using A/C Size Calculator 


LG is our preferred A/C brand.

Please see our A/C Brand Compatibility List for other compatible brands and notes about models to avoid.

Most window A/C units over 8K may have secondary sensors.

LG (except Dual Inverter Models) and Haier window A/Cs DO NOT have secondary sensors.

LG window dual inverter compressor models HAVE secondary sensors.

A/C Secondary Sensor Guide available for download at our Support Library.

Frigidaire, Arctic King, Gree, Kelvinator and some Danby window A/Cs have a minimum ON cycle time set from the factory; using an over-sized window A/C from one of these brands may lead you to
experience colder than set temperatures or ice ups. Please use the recommended size A/C.

Quick Reference A/C Sizing Chart


Quick Reference A/C Sizing Chart (Metric)


Air Conditioners with Secondary Sensor


Click for Secondary Sensor Guide

Mini-Split A/C Installation Guide


Click for Mini-Split A/C Installation Guide

Window Air Conditioner Wall Installation