Choosing a combined window air conditioner and heater gives year‑round temperature control without a separate HVAC system. The options below cover small to large rooms, smart controls, inverter efficiency, and supplemental heat. The table summarizes the five selected units featured in this guide to help you compare capacity, coverage, and standout features at a glance.
| Product | Cooling Capacity | Recommended Coverage | Standout Feature |
|---|---|---|---|
| Midea 8,000 BTU Smart Inverter Air Conditioner With Heat | 8,000 BTU | Up To 350 Sq. Ft. | Variable‑speed inverter, Energy Star, Wi‑Fi |
| LG 23,000 BTU Window Air Conditioner With Heat | 23,000 BTU | Up To 1,400 Sq. Ft. | High capacity for large rooms, low noise |
| GE AWGP08WWA 8,000 BTU Smart Heat/Cool Window AC | 8,000 BTU | Up To 350 Sq. Ft. | Heat pump tech, Wi‑Fi SmartHQ app |
| ROVSUN 8,000 BTU Window AC With Heat (App & Voice) | 8,000 BTU / 4,000 BTU heat | Up To 350 Sq. Ft. | App control and Alexa/Google compatibility |
| Keystone 23,200 BTU Window‑Wall AC With 16,000 BTU Heat | 23,200 BTU | Up To 1,500 Sq. Ft. | Through‑the‑wall capability, strong supplemental heat |
Midea 8,000 BTU Smart Inverter
This Midea model combines cooling, heating, and dehumidification for multi‑season use. The unit uses a variable‑speed inverter compressor for more consistent temperatures and reduced energy draw. It’s Energy Star rated and engineered to cool spaces up to 350 square feet while offering supplemental heat via a heat pump function (operates when outside temp is above 41°F).
Controls include an LED display, five operation modes (Heat, Auto, Cool, Dry, Fan), three fan speeds, a 24‑hour timer, ECO mode, front‑access washable filter, and louvers with swing control. Wireless control via the SmartHome app and voice support for Alexa and Google are included, enabling remote setup and scheduling.
LG 23,000 BTU AC With Heat
The LG 23,000 BTU window unit is designed for large spaces up to approximately 1,400 square feet and includes a supplemental heating function. It operates on 230V power and is intended for robust cooling and heating demands in living rooms, dens, or large office areas.
Key functionality includes multiple fan and mode settings, two cooling and heating speeds, and a focus on low noise operation (reported down to about 50 dB in low mode). The unit’s design supports steady temperature maintenance for larger rooms and aims to balance airflow, cooling capacity, and quieter performance for night or daytime use.
GE 8,000 BTU Smart Heat/Cool
The GE AWGP08WWA provides 8,000 BTU for both cooling and heating via an advanced heat pump design. GE states the heat pump delivers up to two times more effective heating versus traditional resistive elements, improving warm‑up speed and energy use in moderate cold.
It supports Wi‑Fi connectivity and integration with the SmartHQ app for remote control and scheduling. The unit targets medium rooms up to 350 square feet and includes a remote control and an easy install kit. The feature set focuses on smart home compatibility and year‑round comfort using heat pump efficiency.
ROVSUN 8,000 BTU With App Control
ROVSUN’s 8,000 BTU window AC and heater combo lists cooling at 8,000 BTU with a heating mode rated at 4,000 BTU, suitable for rooms up to 350 square feet. The unit offers five modes (Heat, Auto, Cool, Dry, Fan), three speed settings, a 24‑hour timer, ECO mode, and a washable front filter for maintenance.
Connectivity includes an app and voice control that works with Alexa and Google Assistant. This enables remote adjustments, routines, and scheduling. The product emphasizes fast cooling and heating for small‑to‑medium rooms and user convenience through smart controls and standard remote or panel use.
Keystone 23,200 BTU Window-Wall Unit
The Keystone 23,200 BTU model is built for very large spaces up to 1,500 square feet and functions as a through‑the‑wall or heavy‑duty window unit. It supplies high cooling output and a 16,000 BTU supplemental heat mode designed for temperate winter conditions as an auxiliary heat source.
Features include cooling, supplemental heating, dehumidification, and fan circulation. The remote control reads room temperature and updates the unit’s control signal periodically for accurate regulation. The manufacturer notes supplemental heat is intended as an aid rather than the primary heat source in cold climates.
Buying Guide: How To Choose A Window Air Conditioner And Heater Combo
Selecting the right window air conditioner and heater combo requires matching capacity, power requirements, heating type, efficiency, and features to your space and climate. Use the following criteria to compare options objectively.
Capacity And Room Size
Match BTU cooling capacity to room square footage. Typical guidelines: 5,000 BTU for small rooms (~150 sq. ft.), 8,000 BTU for medium rooms (~350 sq. ft.), and 20,000+ BTU for large rooms or open areas. Oversizing wastes energy; undersizing reduces comfort and runtime.
Heating Method And Climate Suitability
Two common heating types: heat pump and resistive supplemental heat. Heat pumps are more efficient and provide cooling and heating in one compressor cycle, but their heating performance drops at lower outdoor temperatures. Supplemental resistive heaters work in very cold conditions but are less efficient.
Check the unit’s specified operating range for heat pump mode (for example, some heat pump functions require outdoor temps >41°F). Choose units with supplemental heat if you expect colder winters or want backup heat.
Voltage And Electrical Requirements
Smaller units typically run on 115V/120V; larger high‑capacity units often require 230V circuits. Verify your window or through‑wall installation can safely support the voltage and that dedicated circuits are available if required. Consult an electrician for 230V installations.
Energy Efficiency And Inverter Technology
Look for Energy Star certification and inverter compressors for better part‑load efficiency and quieter operation. Inverter units modulate compressor speed, maintaining set temperatures with fewer on/off cycles and potentially saving energy over fixed‑speed compressors.
Noise Levels
Sound is important for bedrooms and living areas. Manufacturers may list dB levels or note “ultra‑quiet” designs. Inverter and U‑shaped designs can reduce perceived noise and vibration. Compare reported decibel levels for low and high fan settings when available.
Installation Type And Window Compatibility
Decide between standard window units, U‑shaped inserts, or through‑the‑wall models. U‑shaped designs allow the top sash to close behind the unit and can reduce exterior noise. Through‑the‑wall models require a sleeve or professional install but offer higher capacity and permanence.
Smart Features And Controls
Wi‑Fi, app control, and voice assistant compatibility provide remote control, scheduling, and integration with smart home routines. If you want remote pre‑cooling/heating or automated schedules, prioritize units with reliable apps and widely supported voice platforms.
Air Quality, Dehumidification, And Filter Access
Many units offer a dry/dehumidify mode and washable filters. Check filter access for ease of cleaning and replacement. Dehumidification improves perceived comfort in humid climates and reduces runtime in cooling mode.
Maintenance And Durability
Front‑access washable filters, accessible coils, and a clear drain path simplify maintenance. Consider available replacement parts, warranty length, and the reputation of the brand for serviceability.
Operation Modes And Controls
Look for multiple fan speeds, idle/auto modes, ECO or energy‑saving modes, and a 24‑hour timer. These features allow finer control of runtime and comfort while optimizing energy use.
Sizing Tips And Load Considerations
- Account for ceiling height, sun exposure, insulation level, and occupant load when sizing a unit.
- For kitchens or rooms with heat‑producing equipment, increase BTU sizing slightly.
- If in doubt, consult HVAC sizing charts or a professional for an accurate load calculation.
Comparing Inverter Vs Traditional Units
Inverter units adjust compressor speed for steady temperatures and higher efficiency at part load. Traditional fixed‑speed compressors cycle on/off and can be noisier with larger temperature swings. In climates with variable usage, inverter units can deliver measurable electricity savings.
Budgeting For Installation And Operation
Consider upfront installation (especially for 230V or through‑the‑wall), and ongoing operating costs based on local electricity rates. Higher efficiency and inverter technology can reduce monthly bills but may have higher initial cost or installation requirements.
Warranty And Support
Review manufacturer warranties for parts and compressors, and note the availability of customer support and replacement parts. For smart units, confirm ongoing app support and firmware updates from the manufacturer.
Comparison Perspectives
When comparing units, balance capacity vs. efficiency. Smaller inverter or heat pump units like the Midea and GE models suit medium rooms with improved efficiency and Wi‑Fi control. High‑capacity units like LG and Keystone cover large spaces but often require 230V circuits and may rely on supplemental heating rather than heat pumps for extreme cold.
Consider smart features if remote control and scheduling matter; otherwise, prioritize raw capacity, noise level, and maintenance ease. For year‑round use in milder climates, heat pumps offer a good balance of heating and cooling efficiency. In colder regions, ensure supplemental resistive heat or central heat is available.