Choosing a combined air conditioner and heater unit can simplify your home’s climate control needs by providing seasonal comfort with a single device. Below is a summary table highlighting five top-rated models ideal for different room sizes and functionality, all available on Amazon.
| Product | BTU Cooling / Heating | Room Coverage | Key Features |
|---|---|---|---|
| BLACK+DECKER Smart Portable Air Conditioner with Heat | 14,000 BTU Cooling / 12,000 BTU Heating | Up to 700 sq. ft. | Wi-Fi & voice control, 4-in-1 functionality, portable design |
| Midea 12,000 BTU Smart Inverter Window Unit | 12,000 BTU Cooling & Heat Pump | Up to 550 sq. ft. | Energy Star rated, inverter tech, remote & app control |
| Whynter 14,000 BTU Portable AC & Heater Dual Hose | 14,000 BTU Cooling / Heater | Up to 500 sq. ft. | Quiet operation, auto-drain dehumidifier, award-winning |
| LG 23,000 BTU Window Air Conditioner With Heat | 23,000 BTU Cooling & Heating | Up to 1400 sq. ft. | Low noise, multiple fan speeds, remote included |
| SereneLife 10,000 BTU Portable AC with Heater | 10,000 BTU Cooling & Heating | Up to 450 sq. ft. | Built-in dehumidifier, 4 modes, remote control |
Content Navigation
- BLACK+DECKER Smart Portable Air Conditioner & Heater
- Midea 12,000 BTU Smart Inverter Window Air Conditioner & Heater
- Whynter 14,000 BTU Portable Air Conditioner Heater Dual Hose
- LG 23,000 BTU Window Air Conditioner & Heater Combo
- SereneLife 10,000 BTU Portable Air Conditioner with Heater
- Buying Guide For Combination Air Conditioner And Heater Units
BLACK+DECKER Smart Portable Air Conditioner & Heater

This four-in-one unit combines 14,000 BTU cooling and 12,000 BTU heating capacities, designed for rooms up to 700 sq. ft. It functions as an air conditioner, heater, dehumidifier, and fan, offering versatile comfort year-round in a compact portable design. The device provides smart connectivity features with Wi-Fi compatibility and voice control through Amazon Alexa or Google Assistant. Its portability allows users to move it between rooms easily while maintaining efficient climate control.
Midea 12,000 BTU Smart Inverter Window Air Conditioner & Heater

This energy star certified 12,000 BTU inverter window unit offers efficient cooling and supplemental heating for up to 550 sq. ft. It features five operational modes including heat, auto, cool, dry, and fan, with three fan speed settings to optimize airflow. The unit offers multiple control options: a physical panel, remote, smartphone app, and voice commands. Its variable-speed inverter technology contributes to significant energy savings compared to standard air conditioners.
Whynter 14,000 BTU Portable Air Conditioner Heater Dual Hose

Recognized as the 2025 Good Housekeeping Award winner, this portable AC and heater excels in quiet and powerful operation. It covers rooms up to 500 sq. ft. and integrates a built-in dehumidifier with a patented auto-drain function, eliminating manual condensate removal. It operates at a low noise level (51 dBA) and uses eco-friendly R-32 refrigerant, supporting both energy efficiency and environmental safety. The dual-hose design enhances cooling efficiency by separating intake and exhaust.
LG 23,000 BTU Window Air Conditioner & Heater Combo

Ideal for larger spaces up to 1,400 sq. ft., this LG unit features powerful cooling and heating with low noise levels as quiet as 50 dB. It offers two fan speeds for both cooling and heating functions to customize airflow and comfort. Designed for installation in a window, this model enables steady temperature control for living rooms or offices. Included is a remote control for convenience, enhancing user experience.
SereneLife 10,000 BTU Portable Air Conditioner with Heater

This compact and portable unit provides 10,000 BTU cooling and heating suitable for rooms up to 450 sq. ft. It integrates a built-in dehumidifier, making it ideal for humid climates, and offers four operational modes including cooling, heating, fan, and dehumidification. The device is designed for user convenience with remote control access and convenient mobility via rolling wheels, allowing placement flexibility throughout a home or office.
Buying Guide For Combination Air Conditioner And Heater Units
Capacity And Coverage Area
When selecting a combined air conditioner and heater, consider the BTU rating relative to your room size to ensure effective temperature control. Larger rooms require higher BTU units. Make sure the product specifications provide recommended square footage to match your space.
Energy Efficiency And Operation Cost
Look for Energy Star certified or inverter technology models that offer better energy consumption rates. Efficient operation reduces electricity bills and environmental impact. Features like auto shutoff, eco modes, and variable fan speeds contribute to optimized energy use.
Portability Vs. Installation
Decide whether you prefer a portable AC heater unit which can be moved between rooms without professional installation, or a fixed window unit that may provide enhanced cooling/heating but requires installation. Portables include easy-setup options with exhaust kits, while window units might maximize performance in a fixed location.
Smart Features And Controls
Smart controls via Wi-Fi, voice assistants (Alexa, Google Assistant), and mobile apps allow convenient and remote operation. Multiple control methods (remote, panel, app) add flexibility and ease of use. Timers and programmable modes optimize comfort scheduling.
Additional Functionalities
Some units offer integrated dehumidifiers, fans, and air purification features, enhancing indoor air quality and comfort. Quiet operation is important for bedrooms or offices to reduce noise distractions. Auto-drain features minimize maintenance needs in portable models.
Installation Requirements And Fit
Consider window size compatibility for window units and ease of exhaust setup for portable units. Adjustable window panels or universal exhaust kits can ease installation challenges. Make sure the unit fits your space and existing infrastructure.