LG Dual Inverter 8,500 BTU vs TCL Q-Series 8,000 BTU Inverter
Quick take: The TCL Q-Series 8,000 BTU Inverter costs $180 less.
| Spec | LG Dual Inverter 8,500 BTU | TCL Q-Series 8,000 BTU Inverter |
|---|---|---|
| Price | $459 | $279 |
| Rating | 4.4★ (73) | — |
| Type | Window | Window |
| Capacity (ASHRAE) | 8.5k BTU | 8k BTU |
| SACC (delivered) | — | — |
| Coverage | ~380 sq ft | ~350 sq ft |
| Noise (lowest) | 44 dB | 42 dB |
| CEER (efficiency) | 15 | 15 |
| Compressor | Inverter (variable) | Inverter (variable) |
| Heating | — | — |
| Window Fit | 27–42 in | 26–36 in |
| Voltage | 115V | 115V |
| Weight | 83 lbs | 62 lbs |
| WiFi Control | Built-in | Built-in |
| Install | Do not attempt this one alone: the inverter chassis weighs about 83 pounds and is nearly 29 inches deep, so most of the mass hangs outside the window. A support bracket is strongly recommended (and required by code in NYC-style installs), and two people make the lift safe. It needs a wider window than most 8K units — roughly 27 to 42 inches — plus about 16 inches of sash height. Budget an hour, and note the deep cabinet can block outward-opening screens. | TCL's pre-assembled rigid frame is the standout: the bracket-and-curtain assembly comes built, so install is genuinely a three-step job most owners finish in 20–30 minutes. At 62 pounds it's lighter than the LG inverter but still a two-person lift for upper floors. It needs a window 26 to 36 inches wide with 14.5 inches of opening height, and the rigid side panels mean you can still open and close the window with the unit mounted — a rare trick. A support bracket is smart but not strictly required on solid sills. |
| Warranty | 1-year parts & labor; 10-year warranty on the dual inverter compressor | 1-year limited parts & labor warranty |
Pros & cons
LG Dual Inverter 8,500 BTU
- ✓Dual inverter compressor ramps instead of cycling — no on/off thunk
- ✓Published operation as low as 44 dB
- ✓CEER 15.0 cuts energy use up to 35% vs conventional units
- ✓Holds set temperature within about 1 degree
- ✓ThinQ app with energy monitoring, Alexa and Google voice control
- ✓8,500 BTU covers up to 380 sq ft — more headroom than rival 8Ks
- ✓10-year compressor warranty backs the inverter hardware
- ✓4-way air deflection spreads air well in wide rooms
- ✗83 lbs and 28.75 in deep — a two-person install that wants a bracket
- ✗Needs a window at least ~27 in wide; won't fit narrow openings
- ✗ThinQ app is clunky, with login and connectivity complaints
- ✗Some units develop a low-frequency hum at mid compressor speeds
- ✗$150+ premium over budget 8K units
- ✗Condensate gurgle noises reported in humid climates
TCL Q-Series 8,000 BTU Inverter
- ✓CEER 15.0 matches LG's efficiency for ~$150 less
- ✓Quiet mode as low as 42 dB; newest revision claims 40 dB cooling
- ✓Pre-assembled frame installs in about three steps
- ✓Window can still open and close with the unit mounted
- ✓Holds set temperature within about 1°F
- ✓TCL Home app plus Alexa, Google, and Siri shortcuts
- ✓62 lbs — notably lighter than LG's 83 lb inverter chassis
- ✗Only a 1-year warranty — no long compressor coverage like LG
- ✗TCL Home app is the most common owner complaint
- ✗Short US track record makes longevity an open question
- ✗Needs 26 in of window width — misses narrower bedroom windows
- ✗Display is bright at night until manually dimmed