Keeping a comfortable indoor climate year-round requires a smart mix of cooling, heating, and dehumidification. The following picks highlight window and portable units that offer heating and cooling capabilities, energy efficiency, and flexible control options. Read on to compare top features and find how each model can fit your space—from small apartments to larger rooms.
| Product | BTU Range | Type | |
|---|---|---|---|
| Midea 8,000 BTU Smart Inverter Window Unit | 8,000 | Window Unit | Heat and Cool, Energy Star, Alexa/Voice Control, Inverter Technology |
| Midea 12,000 BTU Smart Inverter Window Unit | 12,000 | Window Unit | Heat and Cool, Energy Star, App Control, Inverter |
| LG 18,000 BTU Heat & Cool Window AC | 18,000 | Window Unit | Remote/Smart Control, Supplemental Heat, Customizable Speeds |
| ROVSUN 8,000 BTU Window AC with Heat | 8,000 | Window Unit | 5 Modes, App/Voice Control, Energy Saver |
| Whynter 14,000 BTU Portable AC with Heater | 14,000 | Portable Unit | Dual Hose, Dehumidifier, Quiet Operation, Auto Drain |
The following sections spotlight five highly relevant models. Each entry includes a brief overview, key specifications, and notable features to help you evaluate suitability for your space and climate goals.
Midea 8,000 BTU Smart Inverter Window Unit
The Midea 8,000 BTU window air conditioner offers both cooling and supplemental heating for year-round comfort in rooms up to 350 square feet. It uses inverter technology for quieter operation and energy savings, with an Energy Star rating to reduce ongoing costs. The unit features 5 modes (Heat, Auto, Cool, Dry, Fan) and 3 speeds, plus a 24-hour timer and ECO energy saver. A smart-home capability lets you control the unit via the SmartHome App or voice assistants like Alexa and Google Assistant. Heat is available when outdoor temperatures exceed 41°F.
Key considerations:
- Best for mid-size living rooms or bedrooms within 350 sq ft.
- Energy-efficient operation via variable-speed inverter technology.
- Smart control enables remote setup and voice commands.
Midea 12,000 BTU Smart Inverter Window Unit
The larger Midea 12,000 BTU model expands coverage up to roughly 550 square feet and includes heat mode for year-round comfort. It shares multiple control options with the smaller model—LED display, 5 modes, 3 speeds, a 24-hour timer, ECO energy saver, and smart home integration via an app and voice assistants. Note that heat pump functionality is temperature dependent and may not operate below certain outdoor temperatures. Inverter technology supports energy savings up to about 35% versus traditional standards.
Key considerations:
- Greater cooling capacity for larger rooms, up to 550 sq ft.
- Heat mode available with note on outdoor temperature requirements.
- Energy-saving inverter design and familiarity with smart control options.
LG 18,000 BTU Heat and Cool Window Air Conditioner
LG’s 18,000 BTU window unit delivers robust cooling for large spaces and includes supplemental heat for milder winters. The ThinQ smart platform enables remote control and voice operation with Alexa and Google Assistant, allowing temperature adjustments from anywhere. It offers customizable cooling and heating through multiple speeds, a 24-hour timer, and a user-friendly interface. This model suits larger living rooms or open-plan layouts that require steady climate management throughout the year.
Key considerations:
- High cooling capacity suitable for large rooms (up to 1,000 sq ft suggested by typical use cases).
- Supplemental heat adds versatility across seasons.
- Smart features enable convenient control and scheduling.
ROVSUN 8,000 BTU Window AC With Heat
The ROVSUN 8,000 BTU unit combines cooling and heating with dehumidification and a fan for flexible climate control in rooms up to about 350 sq ft. It features a five-mode setup (Heat, Auto, Cool, Dry, Fan), three speed options, a 24-hour timer, and energy-saving ECO mode. In addition to a front-access washable filter, the unit includes a swing function to direct airflow. The device supports app and voice control via Alexa or Google Assistant, expanding convenient management from a smartphone or voice-enabled device.
Key considerations:
- Balanced cooling/heating with energy-efficient operation.
- App and voice control augment ease of use for busy households.
- Suitable for mid-size rooms and apartments up to 350 sq ft.
Whynter 14,000 BTU Portable AC With Heater
The Whynter ARC-14SH portable unit provides 14,000 BTU cooling with heating capabilities, designed for rooms up to 500 sq ft. It includes a built-in dehumidifier, a dual-hose exhaust design, and an auto-drain function to minimize maintenance. The unit operates quietly (approx. 51 dBA on low) and supports a window kit for installation. It also emphasizes eco-conscious cooling with CFC-free refrigerant and energy-efficient operation while delivering strong performance for larger spaces.
Key considerations:
- Portability gives flexibility for space rearrangement or seasonal use.
- Dual-hose design improves efficiency, especially in warmer climates.
- Integrated dehumidification helps manage humidity alongside temperature.
Buying Guide: Key Purchase Considerations and Comparisons
When choosing a heater and air conditioner combination, consider the following criteria to ensure you select a unit that fits your space and needs:
- Room size and BTU: Match BTU output to the room size. Undersized units struggle to cool or heat effectively, while oversized units may cycle too quickly and waste energy.
- Seasonal functionality: Look for heat and cool capabilities, and note any temperature or outdoor-condition limitations for heat pumps or supplemental heating.
- Energy efficiency: Inverter or variable-speed systems deliver energy savings and quieter operation. Energy Star ratings can help compare efficiency.
- Control options: Remote control, built-in displays, smartphone apps, and voice control (Alexa/Google Assistant) offer flexible operation. Ensure your ecosystem is supported.
- Installation type: Window units are space-saving but require a proper window fit; portable units add mobility but may require exhaust venting and more space for optimal airflow.
- Maintenance: Accessible filters and easy-clean components extend performance. Check front-panel access and filter cleanliness.
- Noise level: Consider decibel ratings for bedrooms or study areas where quiet operation matters.
- Dehumidification: If humidity is a concern, favor units with a dedicated dehumidifier mode or efficient moisture removal capacity.
- Smart integration: If you rely on voice assistants or smart home routines, verify compatibility with your preferred platforms.
In summary, for mid-size living spaces, the Midea 8,000 BTU and 12,000 BTU models provide inverter efficiency with integrated heating options. For larger rooms, the LG 18,000 BTU unit offers robust cooling and supplemental heat with strong smart features. The Whynter portable option adds mobility with a dual-hose design and substantial dehumidification, while the ROVSUN 8,000 BTU unit combines practical controls with app and voice compatibility for flexible setup.