Finding a single unit that cools efficiently in the summer and provides dependable heating in cooler months can simplify home climate control. The selections below focus on window and portable models that offer heat, dehumidification, and smart features for American homes. Each option balances energy efficiency, noise levels, and ease of use, so you can compare quickly and pick the right fit for spaces from apartments to living rooms.
| Product | Capacity | Type | Notes |
|---|---|---|---|
| Midea 8,000 BTU Smart Inverter Window Unit | 8,000 BTU | Window | Heat and cool, Energy Star, smart control |
| Midea 12,000 BTU Smart Inverter Window Unit | 12,000 BTU | Window | Up to 550 sq ft, energy saver, app/voice control |
| LG 23,000 BTU Window Air Conditioner with Heat | 23,000 BTU | Window | Low noise, auto restart |
| ROVSUN 8000 BTU Window Unit with Heat | 8,000 BTU | Window | 4-in-1, APP & voice control |
| TURBRO 14,000 BTU Portable Unit | 14,000 BTU | Portable | 4-in-1 with UV-C light |
Best Overall Window Unit With Heat

The Midea 8,000 BTU window unit combines cooling and supplemental heat for spaces up to 350 square feet. It uses inverter technology for energy efficiency and includes an LED display, remote control, and app/voice compatibility with Alexa and Google Assistant. Energy Star certification highlights long-term cost savings, while washable filters support ongoing maintenance. Note that heating is available when outdoor temperatures are above 41°F, making it a practical choice for year-round comfort in moderate climates.
Best 12,000 BTU Inverter Window Unit

This 12,000 BTU window unit cools larger rooms (up to 550 square feet) and includes supplemental heat. It features five modes (Heat, Auto, Cool, Dry, Fan), three fan speeds, a 24-hour timer, and ECO energy saver. The unit works with a SmartHome app and supports voice assistants. While the heat function is available above 41°F, the combination of cooling power and energy-saving inverter technology makes it a strong option for mid-sized living spaces seeking year-round climate control.
Best Quiet Window Unit With Heat

LG’s high-capacity 23,000 BTU window unit is designed for larger rooms up to 1,400 square feet. It offers low-noise performance (as low as 50 dB in certain modes) and an auto restart feature after power outages. The unit supports cooling and heating, making it a versatile option for living rooms, dens, and larger offices seeking steady year-round comfort with minimal disruption.
Best Smart Window Unit With Advanced Controls

ROVSUN’s 8,000 BTU window AC with heat combines cooling, a 4,000 BTU heater, dehumidifier, and fan in a single unit. It supports app and voice control via Alexa or Google Assistant, plus a 24-hour timer and eco-friendly energy saver. This model emphasizes ease of installation with a simple kit and a washable filter for straightforward maintenance, making it suitable for bedrooms or compact living areas that require flexible climate control.
Best Portable All-Season Unit

The TURBRO portable unit delivers 14,000 BTU cooling with 10,000 BTU heating, serving up to 600 square feet. It includes a UV-C light for air purification, a dehumidifier, a fan, and a sleep mode. The unit is designed for flexible placement with portable installation, a remote, and a 24-hour timer. It’s a strong choice for renters or spaces where window units aren’t feasible but year-round comfort is needed.
Buying Guide: Key Considerations For Aircon and Heater Units
- Room size and BTU capacity: Match cooling/heating capacity to space. Oversized units may waste energy, while undersized units struggle to maintain comfort.
- Seasonal usability: Consider whether you want a dedicated heat pump, supplemental heat, or a portable unit with multi-mode capabilities for year-round use.
- Energy efficiency: Look for Energy Star certification and inverter or variable-speed technology to reduce consumption and operating costs.
- Control options: Apps, voice assistants, remotes, and smart home integration add convenience and potential energy savings through scheduling.
- Installation and space fit: Window units require compatible windows; portable units offer flexibility but need proper ventilation and drainage considerations.
- Noise levels: For bedrooms and offices, prioritize models with low decibel output on cooling and heating modes.
- Maintenance: Washable or easy-access filters, auto-evaporation features, and accessible panels simplify upkeep and performance.
- Safety and compatibility: Check electrical requirements and compatibility with your existing outlets and home wiring.