Finding the best small heat pump air conditioner is essential for comfort in compact spaces without compromising energy efficiency. This article reviews top-rated portable and window units designed to effectively cool and heat smaller rooms. Each model brings unique features such as smart connectivity, quiet operation, and multi-functionality like dehumidifying and fan modes. Below is a summary table of these highly rated options to help you choose the perfect fit.
| Product | Cooling BTU | Heating BTU | Coverage Area | Smart Features |
|---|---|---|---|---|
| BLACK+DECKER Portable AC with Heat | 14,000 | 12,000 | Up to 700 Sq. Ft. | Wi-Fi, Alexa, Google Assistant |
| Midea 12,000 BTU Smart Inverter | 12,000 | 12,000 | Up to 550 Sq. Ft. | SmartHome App, Voice Control |
| Whynter Portable 14,000 BTU AC & Heater | 14,000 | Heater Included | Up to 500 Sq. Ft. | Auto Drain, Dual Hose |
| GE 8,000 BTU Smart Heat/Cool Window Unit | 8,000 | 8,000 | Up to 350 Sq. Ft. | SmartHQ App |
| Westinghouse 14,000 BTU Air Conditioner with Heat | 12,000 (ASHRAE) | Heat Mode Available | Up to 700 Sq. Ft. | Wi-Fi Enabled, Remote Control |
BLACK+DECKER Smart Portable Air Conditioner with Heat
The BLACK+DECKER BPACT14HWT offers a versatile four-in-one design, providing 14,000 BTU cooling along with 10,000 BTU heating ideal for rooms up to 700 square feet. This portable unit also functions as a dehumidifier and fan, enhancing comfort year-round. Its compact size (16.5” x 14.06” x 27.09”) allows easy portability, perfect for bedrooms or living spaces.
This model supports Wi-Fi connectivity with app control available for iOS and Android devices. Voice control integration with Amazon Alexa and Google Assistant adds modern convenience. Its heat pump functionality efficiently manages temperature fluctuations, making it a reliable choice for seasonal changes.
Midea 12,000 BTU Smart Inverter Air Conditioner Window Unit
This Midea 12,000 BTU window unit features an energy-efficient inverter technology, providing up to 35% energy savings compared to standard units. It cools rooms up to 550 sq. ft. and heats efficiently with supplemental heat, though the heat pump does not operate below 41°F outdoors.
Equipped with an LED display, multiple modes (Heat, Auto, Cool, Dry, Fan), and three fan speeds, it offers full customization. It also includes a 24-hour timer and an adjustable swing function for directed air flow. Smart controls through Midea’s app and voice assistants enhance user experience.
Whynter Portable Air Conditioner 14,000 BTU & Heater
Awarded Good Housekeeping’s 2025 “Best Overall Portable Air Conditioner,” this Whynter unit cools up to 500 sq. ft. while operating quietly at 51 dBA. It uses environmentally friendly R-32 refrigerant and includes a dual-hose system for efficient temperature control.
The built-in dehumidifier has a 71-pint per day capacity and an automatic drain feature, removing condensate efficiently in most conditions. The included window kit adds easy installation versatility, making it a robust choice for both cooling and heating small spaces.
GE AWGP08WWA 8,000 BTU Smart Heat/Cool Window Air Conditioner
The GE AWGP08WWA is ideal for medium-sized rooms up to 350 sq. ft., offering 8,000 BTU cooling and heating by advanced heat pump technology. This system provides up to double the heating efficiency of traditional electric heaters for faster, more sustainable warmth.
It integrates Wi-Fi for remote control with the SmartHQ app, allowing you to monitor and adjust settings from anywhere, ensuring your room is always comfortable upon arrival. The included easy-install kit simplifies setup for window use.
Westinghouse 14,000 BTU Air Conditioner with Heat Mode
This Westinghouse window unit delivers 12,000 BTU ASHRAE cooling and heat mode to manage rooms up to 700 sq. ft. Its fast-cooling capability and programmable thermostat maintain steady temperatures with two fan speeds for efficient air circulation.
Beyond air conditioning, it features a dehumidifier mode to remove excess moisture, improving indoor air quality. The included remote and Wi-Fi functionality add convenience by enabling control from across the room or remotely through mobile devices.
Buying Guide for Small Heat Pump Air Conditioners
Choosing the right small heat pump air conditioner involves several factors to ensure it meets your needs efficiently and comfortably. Consider these key points:
Cooling and Heating Capacity
BTU rating determines the unit’s cooling and heating power. Match the BTU to your room size for optimal performance—too low will overwork the unit; too high wastes energy. For small rooms (under 700 sq. ft.), 8,000 to 14,000 BTU units are commonly recommended.
Energy Efficiency
Look for units with Energy Star ratings or inverter technology, which provide significant savings in electricity use without sacrificing performance. Heat pump models generally offer better energy efficiency than electric resistance heating.
Installation Type
Decide between portable units, which offer flexibility and no permanent installation, or window units, which often provide better energy efficiency but require mounting in a window space. Mini-split units are an alternative for semi-permanent solutions.
Smart Features and Controls
Wi-Fi connectivity, mobile app compatibility, and voice assistant integration enhance usability. Features like programmable timers, adjustable airflow louvers, and remote controls offer added comfort and convenience.
Noise Level
For bedrooms or offices, check the noise rating. Quiet models operate around 50-60 dBA or lower, minimizing disturbances during sleep or work.
Additional Functions
Some units also act as dehumidifiers, fans, or air purifiers. Consider multifunctional devices if these features are a priority for your indoor air quality and comfort.
Climate Compatibility
Ensure the heat pump is rated to operate effectively in your local climate, especially for colder regions where freezing temperatures can affect heating capability.