LG 9,800 BTU Through the Wall Air Conditioner with Supplemental Heat

In this review the LG 9,800 BTU through the wall air conditioner is evaluated for medium rooms where both cooling and occasional heating are needed. The bottom line: this wall-mounted unit is best for homeowners or renters who want a single, compact device that cools up to 440 sq.ft. while offering a supplemental heat option for chillier days. It earns recommendation mainly for its solid coverage, simple controls and useful auto restart, making it a practical choice for bedrooms, home offices, or suites where a ductless solution is preferred.

Key Features

• Cools rooms up to 440 sq.ft.: Designed to handle medium spaces comfortably, giving even temperature control in areas about 25' x 18'.
• Supplemental heat option: Adds warmth on cooler days so the same through-wall unit can serve as temporary heating without a separate heater.
• Two fan and temperature speeds: Offers 2 cooling, heating and fan speeds to tailor airflow and comfort to the room and personal preference.
• Digital controls and remote: Easy-to-use digital control panel plus remote lets users change settings from across the room.
• 4-way air deflection: Directs air where it is needed most to optimize cooling, heating and circulation throughout the room.
• Auto restart and washable filter: Auto Restart restores operation after power outages and the removable washable filter simplifies maintenance.

Who It's For

This unit is aimed at people who need a dependable through-the-wall air conditioner for a medium bedroom, office, or den up to 440 sq.ft., and who appreciate an integrated supplemental heat function for occasional cold snaps. It suits occupiers of apartments or homes where adding ductwork is impractical and a wall installation is acceptable.

Those seeking whole-house HVAC performance, whisper-quiet operation for very noise-sensitive bedrooms, or advanced smart home integration should look elsewhere; this model focuses on straightforward performance, manual controls, and practicality rather than multi-zone or app-based features.

Pros & Cons

Pros

• Good coverage for medium rooms, making it versatile for bedrooms and offices.
• Combined cooling and supplemental heat means year-round utility without extra appliances.
• Convenience features like remote control, 24-hour timer, and Auto Restart simplify daily use.
• Removable, washable filter and trim kit make upkeep and installation tidier.

Cons

• Only two fan and temperature speeds limit fine-grained control compared with multi-speed units.
• As a through-wall unit it requires proper installation and wall sleeve, so DIY placement options are constrained.

Specifications

Brand	LG
Cooling capacity (nominal)	9,800 BTU (listed 10,000 BTU model family)
Recommended room size	Up to 440 sq.ft. (approx. 25' x 18')
Voltage	230V
Fan and speed options	2 cooling, heating and fan speeds
Features	Supplemental heat, 4-way air deflection, Auto Restart, remote, digital controls
Filter	Removable, washable filter with filter light reminder

Our Verdict

The LG 9,800 BTU through the wall air conditioner is a practical, good-value choice for medium rooms where both cooling and occasional heating are needed. Its combination of coverage, supplemental heat, and convenience features like Auto Restart and remote control make it especially suitable for bedrooms and home offices; buyers who need more precise fan speeds or whole-house solutions should consider other options.

Frequently Asked Questions

Can this unit heat as well as cool?
The unit includes a supplemental heat option that provides additional warmth on cooler days, making it useful year-round for moderate heating needs.

What size room will it cool?
This model is intended for medium rooms up to about 440 sq.ft., roughly a 25' x 18' room.

What happens after a power outage?
Auto Restart will automatically turn the unit back on and resume the previous settings when power is restored.