Finding the best 5100 BTU air conditioner can make a huge difference when it comes to effectively cooling small rooms and spaces. Whether you need a portable unit for apartments, camping tents, or a window air conditioner for bedrooms and offices, this cooling capacity is ideal for areas ranging from 150 to 350 square feet. Below is a summary table of some top 5100 BTU air conditioners that combine functionality, portability, and energy efficiency.
| Product | Key Features | Cooling Area |
|---|---|---|
| BLACK+DECKER Portable AC | 3-in-1: AC, fan, dehumidifier; remote control; easy controls | Up to 350 sq. ft. |
| GE 5,100 BTU Portable AC | 3-in-1 cooling, fan, dehumidifier; auto evaporation; easy window install | Up to 150 sq. ft. |
| GE 5,000 BTU Window AC | Manual adjustable fan; low noise operation; easy install kit | Up to 150 sq. ft. |
| CYBERTAKE Portable AC 5100 BTU | 4-in-1: AC, heater, fan, dehumidifier; energy-efficient; lightweight | Suitable for tents, RVs, small rooms |
| DuraComfort Portable AC | 8,500 BTU ASHRAE / 5,100 SACC; cooling, fan, dehumidifier mode; portable | Up to 200 sq. ft. |
Content Navigation
- BLACK+DECKER Portable Air Conditioner, 5,100 BTU SACC
- GE 5,100 BTU Portable Air Conditioner for Small Rooms
- GE Window Air Conditioner Unit, 5,000 BTU for Small Rooms
- CYBERTAKE Portable Air Conditioner 5100 BTU with Heater
- DuraComfort Portable Air Conditioner, 5,100 BTU Cooling
- Buying Guide for Selecting the Best 5100 BTU Air Conditioner
BLACK+DECKER Portable Air Conditioner, 5,100 BTU SACC

The BLACK+DECKER Portable Air Conditioner is a versatile 3-in-1 cooling solution that combines air conditioning, dehumidifying, and fan functions. It effectively cools rooms up to 350 sq. ft., making it a great fit for dorm rooms, apartments, bedrooms, and offices. Featuring a top-mounted LED control panel and full-function remote control, users can easily adjust settings for personalized comfort. The included window kit facilitates quick installation, and its portability allows convenient movement between areas.
GE 5,100 BTU Portable Air Conditioner for Small Rooms

This GE Portable Air Conditioner is designed for efficient cooling in small rooms up to 150 sq. ft. It features a 3-in-1 design allowing air conditioning, fan modes, and dehumidifying capabilities to optimize indoor comfort. Its auto evaporation technology reduces the need for manual water draining under most conditions. The easy-to-install window kit requires no cutting, enabling quick setup in bedrooms, offices, or studios.
GE Window Air Conditioner Unit, 5,000 BTU for Small Rooms

The GE 5,000 BTU Window Air Conditioner is a compact and quiet unit ideal for small rooms up to 150 sq. ft. It offers a mechanical control panel with adjustable fan and cooling settings, perfect for bedrooms or living rooms. The package includes an easy-install kit so users can set it up quickly. Its low noise operation supports comfortable nighttime environments without loud disruptions.
CYBERTAKE Portable Air Conditioner 5100 BTU with Heater

The CYBERTAKE Portable AC delivers powerful cooling and heating with its 5100 BTU capacity and 1800W auxiliary heating. It is highly energy efficient, featuring an inverter compressor and consumes only 100W/hour in sleep mode. Weighing just 25.57 lbs, its lightweight design and ergonomic handle make it highly portable. This 4-in-1 unit is perfect for camping, RVs, or small indoor rooms, providing quiet and effective climate control.
DuraComfort Portable Air Conditioner, 5,100 BTU Cooling

The DuraComfort Portable Air Conditioner offers an effective cooling output of 8,500 BTU (ASHRAE) / 5,100 BTU (SACC), ideal for compact rooms up to 200 sq. ft. Its multifunction design supports cooling, dehumidifying, and fan modes to meet all-year comfort needs. The portable unit features wheels and a handle for easy mobility, making it a practical choice for both home and office use.
Buying Guide for Selecting the Best 5100 BTU Air Conditioner
Choosing the right 5100 BTU air conditioner involves considering several factors to ensure optimal cooling performance and convenience for your specific needs.
Cooling Capacity and Room Size
5100 BTU units are suited primarily for small rooms ranging from roughly 150 to 350 square feet. It’s important to match the BTU level closely to your room size to avoid inefficient cooling or unnecessary energy consumption.
Type of Air Conditioner
- Portable ACs offer flexibility as they can be moved between rooms and often combine multiple functions like dehumidifying and fan modes.
- Window ACs are generally more energy-efficient for a fixed location but require installation and are less portable.
Additional Features
- Dehumidifying Function: Helps reduce indoor humidity which can enhance comfort and prevent mold.
- Auto Evaporation: Reduces the hassle of manually emptying water collected during cooling.
- Remote Control and Programmable Timers: Increase ease of operation and allow better energy management.
- Noise Levels: Low decibel ratings are preferred for bedrooms or quiet spaces.
Energy Efficiency and Operating Costs
Look for units with inverter compressors or energy-saving modes to reduce electricity usage. Checking for an Energy Star certification or similar efficiency ratings is beneficial for long-term savings.
Portability and Installation
If you require mobility, choose lightweight units with ergonomic handles and caster wheels. For stationary use, window units with included installation kits simplify setup.
Climate and Use Case
Consider whether you need additional heating capabilities, ideal for colder seasons or regions. Units with combined cooling and heating offer year-round climate control.