Best Heat and Cool Window Unit Options for All Seasons
Finding a window air conditioner that can both cool and heat makes year-round comfort easier to manage. Below are five top-rated window units featuring built-in heating, smart controls, and reliable performance for spaces up to several hundred square feet. Each product summary highlights its key capabilities, energy-saving features, and smart options to help you compare quickly.
Summary of Selected Products
| Product | BTU (Cooling) | Supplemental Heat | Smart Features | Room Size |
|---|---|---|---|---|
| ROVSUN 8000 BTU Window AC Unit with Heat | 8000 | 4000 BTU | Remote, App compatibility | Up to 350 sq ft |
| LG 12,200 BTU Window AC with Supplemental Heat | 12200 | Supplemental Heat | Remote, Electronic controls | 570 sq ft |
| Whirlpool 8,000 BTU Window AC with Supplemental Heat | 8000 | 4000 BTU | Digital controls, Eco/Sleep modes | Up to 350 sq ft |
| Keystone 12,000 BTU Window-Wall AC with Heating | 12000 | 11000 BTU | Remote, Dehumidification | Up to 550 sq ft |
| LG 18,000 BTU Window AC with Heat | 18000 | Supplemental Heat | Remote, 24-hour timer, Washable filter | Up to 1000 sq ft |
ROVSUN 8000 BTU Window AC Unit With Heat
The ROVSUN 8000 BTU window air conditioner combines cooling and heating with a 4,000 BTU heater. Suitable for rooms up to 350 square feet, it offers easy operation via LED display and remote control. A timer, ECO mode, and multiple fan speeds provide flexible comfort. Side panels and mounting hardware simplify installation, with a note to verify window size before purchase.
LG 12,200 BTU Window AC With Supplemental Heat
LG’s 12,200 BTU unit provides cooling for larger spaces up to about 570 square feet and includes supplemental heat for cooler days. It features electronic controls with a remote, offering multiple fan speeds for customized comfort. The installation is straightforward, and the unit includes standard conveniences like a filter reminder and 24-hour timer for entry-level energy management.
ROVSUN 8000 BTU Window AC With APP & Voice Control
This ROVSUN model combines 8,000 BTU cooling with a 4,000 BTU heater and adds Wi-Fi/app and voice control compatibility. It supports routine scheduling, and the built-in timer and energy-saving features help manage electricity use. The front-accessible washable filter simplifies maintenance, while the washable filter helps sustain performance over time.
Whirlpool 8,000 BTU Window AC With Supplemental Heat
Whirlpool pairs 8,000 BTU of cooling with 4,000 BTU of supplemental heat for adaptable comfort in spaces up to 350 square feet. The unit includes an electronic control panel with digital display, multiple modes, and a 24-hour on/off timer. An installation kit helps with window mounting and achieving a proper seal for energy efficiency.
Keystone 12,000 BTU Window-Wall With Heating
Keystone offers a powerful 12,000 BTU cooling capacity with 11,000 BTU supplemental heating and dehumidification for rooms up to 550 square feet. It uses inverter technology to improve energy efficiency and reduce noise. The product includes a smart remote with LCD display and a comprehensive remote control for temperature management across seasons.
LG 18,000 BTU Window AC With Heat
LG’s 18,000 BTU window unit is designed for larger spaces up to 1,000 square feet and includes supplemental heat. It features two speeds for cooling and heating, a 24-hour timer, easy digital controls, and a four-way air deflection system. The unit uses a NEMA 6-20 compatible plug in special installations and includes a washable filter for ongoing maintenance.
Buying Guide
- Room size and BTU: Match cooling BTU to the square footage. Consider units with higher heating capacity if you need reliable warmth in shoulder seasons.
- Thermal efficiency: Look for inverter technology or ECO modes to reduce energy usage and operating costs over time.
- Smart features: App or voice control can simplify scheduling and remote adjustments, especially for multi-room setups.
- Installation and window compatibility: Confirm window dimensions and mounting kits included. Some units require special electrical outlets or 230V options.
- Maintenance: Washable filters and accessible front panels save time and maintain performance.
- Noise level: For bedrooms or study areas, consider models with lower decibel ratings in cooling and heating modes.
- Heat function usage: Supplemental heating is best for moderate cool weather; it is not a primary heat source for very cold climates.
- Energy star and ratings: When available, compare energy efficiency and long-term savings potential.
These options provide a range of cooling capacities, heating capabilities, and smart features to support year-round comfort in typical American homes and apartments. Each model offers a different balance of power, efficiency, and convenience, so choosing the right one depends on room size, climate, and how you prefer to manage climate control.