Finding the right air conditioner and heater combo ensures you stay comfortable no matter the season. These all-in-one units often include features like dehumidifiers, smart controls, and portability, making them versatile for various room sizes and settings. Below is a table summarizing the top models that blend cooling and heating efficiently, suited for different room dimensions and usage preferences.
| Product | Cooling BTU | Heating BTU | Coverage (sq. ft.) | Smart Features | Portability |
|---|---|---|---|---|---|
| BLACK+DECKER Smart Portable Air Conditioner with Heat | 14,000 BTU | 12,000 BTU | 700 | Wi-Fi, Alexa, Google Assistant | Yes |
| Midea 12,000 BTU Smart Inverter Window AC with Heat | 12,000 BTU | Supplemental Heat | 550 | App control, Alexa, Google Assistant | No (Window Unit) |
| SereneLife Small Portable AC with Heat | 10,000 BTU | Heat Function | 450 | Remote Control | Yes |
| Whynter Portable 14,000 BTU AC & Heater Dual Hose | 14,000 BTU | Heat Included | 500 | No smart features | Yes |
| Aoxun 10,000 BTU Portable Air Conditioner with Heat | 10,000 BTU | Heat Function | 268 | Remote Control, Timer, Child Lock | Yes |
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BLACK+DECKER Smart Portable Air Conditioner with Heat

This four-in-one unit performs as an air conditioner, heater, dehumidifier, and fan, making it versatile for year-round use. Its 14,000 BTU cooling capacity and 12,000 BTU heating power cover rooms up to 700 sq. ft., ideal for large spaces. The unit is portable, with compact dimensions, and includes a Follow Me Remote for convenient temperature control.
Notably, it supports Wi-Fi connectivity and voice commands via Amazon Alexa and Google Assistant, enabling smart home integration. Its user-friendly app control enhances personalization, while its robust build ensures performance in diverse climates.
Midea 12,000 BTU Smart Inverter Window AC with Heat

The Midea 12,000 BTU unit cools and heats rooms up to 550 square feet with versatile modes including heat, auto, cool, dry, and fan. It features energy-saving inverter technology, earning an Energy Star rating to reduce electricity consumption by up to 35% compared to standard ACs.
Equipped with electronic controls, a 24-hour timer, and an adjustable airflow louver, this window unit provides customizable comfort. Wireless control via the SmartHome app and compatibility with Alexa and Google Assistant make remote operation simple, enhancing convenience in smart homes.
SereneLife Small Portable AC with Heat

This lightweight and portable 10,000 BTU AC is designed for rooms up to 450 sq. ft., suitable for bedrooms, offices, or garages. It combines cooling, heating, dehumidification, and fan modes with auto swing vents for optimized air circulation.
Roller wheels aid mobility, and remote control simplifies mode switching. Its compact size offers financial and spatial savings by consolidating multiple appliance functions into one unit, meeting varying climate demands efficiently.
Whynter Portable Air Conditioner 14,000 BTU & Heater

Recognized as the 2025 Good Housekeeping’s “Best Overall Portable Air Conditioner,” this 14,000 BTU dual-hose unit cools efficiently in rooms around 500 sq. ft. It features quiet operation at 51 dBA on low speed and uses an eco-friendly R-32 refrigerant.
The built-in dehumidifier with patented auto-drain function eliminates condensate manually, offering up to 71 pints per day capacity. It combines powerful cooling, heating, and dehumidification with a focus on user convenience and environmental safety.
Aoxun 10,000 BTU Portable Air Conditioner with Heat

This 4-in-1 portable unit efficiently manages cooling, heating, dehumidifying, and fan functions, covering rooms up to 268 sq. ft. It operates quietly (≤55dB), with a quiet night mode and a 24-hour timer suitable for uninterrupted rest.
Safety and ease of use are highlighted by features such as a child lock and remote control. It maintains temperatures between 62°F and 86°F, perfect for small spaces requiring flexible climate control without complex installation.
Buying Guide for Air Conditioner and Heater Combos
When selecting an all-season air conditioner and heater combo, consider the following key factors to find the unit that best suits your needs.
1. Cooling and Heating Capacity
Evaluate the BTU rating to ensure the unit can efficiently cool and heat your room size. Larger rooms require higher BTU units; for instance, 14,000 BTU units suit spaces up to 700 sq. ft., while smaller rooms benefit from 10,000 BTU units.
2. Portability Versus Installation Type
Portable units offer flexibility and easy relocation, ideal for renters or multi-room use, though often less energy efficient than window units. Window units require installation but usually provide enhanced efficiency for fixed spaces.
3. Energy Efficiency and Certifications
Look for Energy Star ratings or inverter technology to reduce electricity usage. Energy-efficient models save on utility bills and reduce environmental impact.
4. Smart Features and Controls
Wi-Fi connectivity, voice assistant compatibility (Alexa, Google Assistant), and timer settings add convenience and customization. App controls allow remote operation, making it easier to manage indoor climate effectively.
5. Noise Levels
Consider units with low decibel ratings, especially for bedrooms or offices where quiet operation is crucial for sleep or work.
6. Additional Functionalities
Integrated features like dehumidifiers, multi-speed fans, or auto-drain condensate systems enhance comfort and user experience.
7. Room Size and Coverage
Matching the unit’s capacity to the room’s square footage is essential for optimal performance and energy consumption.
8. Ease of Maintenance and Installation
Removable filters, easy window kits, and quick setup options reduce upkeep effort. Portable models with rolling wheels enhance maneuverability.
By carefully comparing these aspects, you can select a high-performance air conditioner and heater combo tailored to your home or office environment, ensuring efficient year-round climate control and user satisfaction.