Through-the-wall heat pumps are ideal for apartments, small homes, or spaces where ductwork isn’t feasible. This guide highlights five top through-the-wall units, explaining who they’re best for and why they stand out. The selections emphasize compact installation, reliable heating, and smart controls for convenient year-round comfort. Buyers can use this overview to compare options for space up to roughly 450–700 square feet depending on the model.
| Product | Key Benefit | Approximate Space | |
|---|---|---|---|
| Whirlpool 14,000 BTU Through-the-Wall | Large living spaces in apartments | High cooling with supplemental heat | Up to 700 sq ft |
| ROVSUN Smart 8000 BTU Through-the-Wall | Smaller rooms with smart control needs | App & voice control, 8,000 BTU cooling | Up to 350 sq ft |
| LG 11,800 BTU Through-the-Wall | Bedrooms or offices needing balanced climate | 4-way deflection and wall mounting | Up to 550 sq ft |
| Midea 8,000 BTU Smart Window Unit | Budget-friendly, compact cooling with heat | Inverter efficiency, energy saver | Up to 350 sq ft |
| ROVSUN Smart 10000 BTU Through-the-Wall | Mid-size rooms with smart features | 10,000 BTU cooling with heating | Up to 450 sq ft |
Whirlpool 14,000 BTU Through-the-Wall Air Conditioner With Supplemental Heat
Best for: Apartments or living spaces up to 700 sq ft that need strong cooling plus backup heat. This unit delivers 14,000 BTU cooling with 10,600 BTU supplemental heat, not intended as primary heat in very cold months. It fits 230V/20A outlets and includes a trim kit for a finished look. The 8-way louvers and multiple fan speeds allow tailored airflow. Choose this if you want a robust cooling capacity and a built-in heat option for shoulder seasons.
Limitations: Supplemental heat is not a primary heat source in the coldest weather; installation requires a compatible sleeve and 4.9-ft plug. The unit is relatively large and may require a precise sleeve fit.
ROVSUN Smart 8000 BTU Through the Wall Air Conditioner With Heat
Best for: Small rooms or apartments where smart control matters. This unit provides 8,000 BTU cooling and 4,200 BTU heating with dehumidification, five modes, and a 24-hour timer. It supports app and voice control via Alexa/Google Assistant, making it convenient for remote adjustments. Use this option when you want modern connectivity and energy-saving features in a compact package.
Limitations: The heating capacity is modest; the room size should be within the 350 sq ft range for optimal performance. Front-access washable filter is convenient but periodic cleaning is required for peak efficiency.
LG 11,800 BTU Through the Wall Air Conditioner and Wall Heater
Best for: Bedrooms or small offices where both cooling and heating are needed with flexible airflow. This LG unit cools and heats with multiple speeds and a 4-way deflection system, offering balanced comfort. It includes a digital control panel, remote, trim kit, and washable filter for simple maintenance. Choose this if you want reliable performance with straightforward operation in a mid-size space.
Limitation: The unit’s best performance is in spaces up to about 550 sq ft; oversized rooms may feel underpowered on peak heat days.
Midea 8,000 BTU Smart Inverter Window Unit With Heat
Best for: Budget-conscious buyers needing a compact, energy-efficient option that provides cooling and supplemental heat. The Midea unit uses inverter technology for energy savings and includes a smart control app, voice compatibility, and multiple modes. This option is well-suited for smaller rooms up to 350 sq ft where energy efficiency is a priority.
Limitation: It is a window unit rather than a dedicated through-the-wall model, which affects installation options for some apartments that require a wall-mounted solution. Heat function only activates effectively when outdoor temperatures are above 41°F.
AMANA 15,000 BTU PTAC With 3.5kW Electric Heater
Best for: Larger suites or mixed-use spaces where robust climate control is needed. The Distinctions by Amana PTAC combo offers high cooling and a strong electric heater, with R32 refrigerant for efficiency. It’s suited for installations with appropriate electrical and sleeve setups and is designed for 208-230V operation.
Limitation: Requires proper sleeve/grille and dedicated electrical provisions. Installation flexibility depends on existing infrastructure in the room or building.
Cooper & Hunter 15,000 BTU PTAC With 3.5kW Heater
Best for: Commercial or multi-unit settings needing a built-in heating option and remote control. This PTAC system is designed for 230/208V operation and includes a 20A plug. It’s suitable for hotels, apartments, or dorms where a dedicated sleeve and exterior grille are part of the setup. Choose this if you need a ready-to-install packaged unit with a wireless smart kit alternative.
Limitation: New installations require exterior components not included in the listing, and verify sleeve compatibility before purchase.
ROVSUN Smart 10000 BTU Through-the-Wall With Heat
Best for: Mid-size rooms that require stronger cooling with heating support and smart features. This unit provides 10,000 BTU cooling and 10,600/8,600 BTU heating, plus 5 modes and app/voice control. It’s suited for living rooms or home offices where remote operation is valuable. The energy-saving features help maintain comfort with efficiency.
Limitation: Heating performance is contingent on outdoor temperatures; consider climate and insulation when sizing for a room.
Buying Guide
What to consider before buying a through-the-wall heat pump
Room size and insulation determine the best BTU rating. Oversized or undersized units waste energy and underperform. Measure the space and compare to the unit’s cooling and heating capacity to ensure efficient operation.
What installation requirements matter
Most units require a compatible sleeve or through-wall opening, plus electrical compatibility (230V/20A or similar). Some models include trim kits, but exterior components or sleeves may be sold separately. Verify wall construction and sleeve availability before purchase.
Smart controls and energy efficiency
Smart features like app control, voice compatibility, and timers add convenience and can improve energy usage. Look for inverter technology and energy efficiency ratings to lower long-term costs.
Heat capability and seasonal use
Heat performance varies with outdoor temperatures. Units labeled for “supplemental heat” are not primary heat sources in cold months. Consider climate and seasonal needs to select a unit that maintains comfort year-round.
Durability and maintenance
Front-access washable filters simplify routine cleaning. Four-way or multi-direction airflow improves comfort, while deflection features help tailor airflow to the room layout. Check for easy access to filters and parts for ongoing maintenance.
Comparison snapshot
- Best for maximum cooling: Whirlpool 14,000 BTUThrough-the-Wall (up to 700 sq ft).
- Best for smart control: ROVSUN Smart 8000 BTU and ROVSUN Smart 10000 BTU.
- Best for bedrooms/offices: LG 11,800 BTU with 4-way deflection.
- Best budget option: Midea 8,000 BTU Smart Window Unit (compact, energy saver).
FAQ
- What size through-the-wall unit do I need for my room?
- Can these units heat a room in winter?
- Do they require professional installation?
- Are there smart features that work with voice assistants?
- What maintenance is needed?
- Is inverter technology worth it?
Match BTU capacity to room size and insulation. Use the manufacturer guidance for square footage and consider ceiling height and sun exposure for accurate sizing.
Most provide supplemental heat rather than primary heating. For very cold climates, pair with a primary heating system or choose a model designed for stronger heating capacity in winter.
Installation often requires a sleeve or wall opening and electrical work. Some models include installation accessories, but verify sleeve compatibility and electrical wiring needs before purchase.
Yes. Several models offer app control and compatibility with Alexa or Google Assistant for remote and voice-controlled operation.
Regularly clean or replace washable filters, inspect louvers for proper deflection, and ensure outdoor units (if present) are free of debris to maintain efficiency.
Inverter models generally provide smoother temperature regulation and lower energy use, which can lead to long-term savings despite higher upfront cost.