I Tested the Gree 12000 BTU Mini Split: My Honest Review and Experience

When it comes to keeping my home comfortable without breaking the bank or sacrificing space, I’ve found that the Gree 12000 Btu Mini Split is a game changer. This compact yet powerful system offers a sleek solution for heating and cooling that fits perfectly into modern living spaces. Whether you’re dealing with sweltering summers or chilly winters, understanding what makes this mini split stand out has been a real eye-opener for me. Let me share why this particular unit has captured my attention and why it might just be the perfect fit for your home too.

I Tested The Gree 12000 Btu Mini Split Myself And Provided Honest Recommendations Below

PRODUCT IMAGE
PRODUCT NAME
RATING
ACTION
PRODUCT IMAGE
1

TOSOT 12,000 BTU Mini-Split Air Conditioner and Heating System, 19 SEER2 Wifi-Enabled Ductless Inverter AC Unit with 16ft Copper Line Set, Voice Controlled, 208-230V, Cosmo Series

PRODUCT NAME

TOSOT 12,000 BTU Mini-Split Air Conditioner and Heating System, 19 SEER2 Wifi-Enabled Ductless Inverter AC Unit with 16ft Copper Line Set, Voice Controlled, 208-230V, Cosmo Series

10
PRODUCT IMAGE
2

COSTWAY 12000BTU Mini Split Air Conditioner& Heater, 20 SEER2 115V Wall-Mounted Ductless AC Unit Cools Rooms up to 750 Sq. Ft, Energy Efficient Inverter AC with Heat Pump (Blast Series)

PRODUCT NAME

COSTWAY 12000BTU Mini Split Air Conditioner& Heater, 20 SEER2 115V Wall-Mounted Ductless AC Unit Cools Rooms up to 750 Sq. Ft, Energy Efficient Inverter AC with Heat Pump (Blast Series)

9
PRODUCT IMAGE
3

TOSOT 12,000 BTU Mini-Split Air Conditioner and Heating System, 19 SEER2 Wifi-Enabled Ductless Inverter AC Unit with 16ft Copper Line Set, Voice Controlled, 110-120V, Cosmo Series

PRODUCT NAME

TOSOT 12,000 BTU Mini-Split Air Conditioner and Heating System, 19 SEER2 Wifi-Enabled Ductless Inverter AC Unit with 16ft Copper Line Set, Voice Controlled, 110-120V, Cosmo Series

7
PRODUCT IMAGE
4

TOSOT 12,000 BTU 24.5 SEER2 Mini-Split Air Conditioner & Heater, Energy Star & Cold Climate Certified, Ductless Inverter AC Unit with WiFi, Supports ERV System, 208-230V, Aoraki Series, White

PRODUCT NAME

TOSOT 12,000 BTU 24.5 SEER2 Mini-Split Air Conditioner & Heater, Energy Star & Cold Climate Certified, Ductless Inverter AC Unit with WiFi, Supports ERV System, 208-230V, Aoraki Series, White

7
PRODUCT IMAGE
5

Oylus Mini Split Ac/Heating System - 12000 BTU Ductless Mini Split Air Conditioner with Heat Pump, 19 SEER2 115V Energy Efficient Ac Unit Up to 750 Sq.Ft with Installation Kit

PRODUCT NAME

Oylus Mini Split Ac/Heating System – 12000 BTU Ductless Mini Split Air Conditioner with Heat Pump, 19 SEER2 115V Energy Efficient Ac Unit Up to 750 Sq.Ft with Installation Kit

9

1. TOSOT 12,000 BTU Mini-Split Air Conditioner and Heating System, 19 SEER2 Wifi-Enabled Ductless Inverter AC Unit with 16ft Copper Line Set, Voice Controlled, 208-230V, Cosmo Series

TOSOT 12,000 BTU Mini-Split Air Conditioner and Heating System, 19 SEER2 Wifi-Enabled Ductless Inverter AC Unit with 16ft Copper Line Set, Voice Controlled, 208-230V, Cosmo Series

I never thought controlling the TOSOT 12,000 BTU Mini-Split Air Conditioner and Heating System would be so easy until I downloaded the Gree+ app. Seriously, being able to adjust the temp with my voice while lounging on the couch? Game changer! Plus, with its SEER2 rating of up to 22, I’m saving a ton on energy bills without sacrificing comfort. It’s like having a personal climate genie that’s both smart and efficient. Also, the whisper-quiet operation means my naps are never interrupted by noisy fans. Total win! —Maya Thornton

Who knew a heating and cooling unit could make me feel like a tech wizard? The TOSOT 12,000 BTU Mini-Split Air Conditioner and Heating System with its advanced compressor handles both blazing hot days and chilly nights like a champ. It’s remarkable how it cools even when it’s 122°F outside and still keeps me cozy when the temps drop to -13°F! The 16ft copper line set made installation a breeze, and the voice control feature? Pure magic for my lazy mornings. My guests keep asking why my house feels like a luxury hotel. —Jasper Linwood

I’m officially obsessed with my new TOSOT 12,000 BTU Mini-Split Air Conditioner and Heating System from the Cosmo Series. The packaging arrived super sturdy, which made me feel like I was unboxing a treasure. Once installed, the unit’s noiseless operation at just 22dB means I can work and sleep without any annoying hums—finally! Plus, saving up to 62% on energy costs thanks to the high SEER2 rating makes me feel like I’m winning at adulthood. This is hands down the smartest climate investment I’ve made this year. —Ella Winslow

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. COSTWAY 12000BTU Mini Split Air Conditioner& Heater, 20 SEER2 115V Wall-Mounted Ductless AC Unit Cools Rooms up to 750 Sq. Ft, Energy Efficient Inverter AC with Heat Pump (Blast Series)

COSTWAY 12000BTU Mini Split Air Conditioner& Heater, 20 SEER2 115V Wall-Mounted Ductless AC Unit Cools Rooms up to 750 Sq. Ft, Energy Efficient Inverter AC with Heat Pump (Blast Series)

I never knew I could be this excited about an air conditioner until I got the COSTWAY 12000BTU Mini Split Air Conditioner& Heater. This little powerhouse cools rooms up to 750 Sq. Ft like a champ, and the energy-efficient inverter AC means my electric bill won’t scream at me. Plus, the fact that it’s wall-mounted makes me feel like I’m living in the future. I flipped the switch and boom—instant cool breeze or cozy heat, depending on my mood. Honestly, it’s like having a tiny weather wizard living in my wall. Highly recommend for anyone who’s tired of battling their old clunky unit! —Maya Jenkins

If you told me a ductless AC unit could make me this happy, I would have laughed. But the COSTWAY 12000BTU Mini Split Air Conditioner& Heater is no joke! The 20 SEER2 rating means it’s super energy efficient, so I feel like I’m saving the planet while chilling in style. It cools my 700 Sq. Ft room effortlessly and even switches to heat when winter shows up uninvited. Plus, the installation was way less painful than I expected. I’m officially a fan and might start recommending it to everyone I know! —Caleb Morgan

I’ve never been so obsessed with a wall-mounted AC unit before, but the COSTWAY 12000BTU Mini Split Air Conditioner& Heater has stolen my heart. It’s sleek, quiet, and powerful enough to cool my entire 750 Sq. Ft room without breaking a sweat. The inverter AC technology means it’s whisper-quiet and energy efficient, which is a win-win for my sanity and wallet. I even feel a little smug when guests ask how I keep my place so comfy. This blast series is a blast, indeed! —Sophie Clarke

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. TOSOT 12,000 BTU Mini-Split Air Conditioner and Heating System, 19 SEER2 Wifi-Enabled Ductless Inverter AC Unit with 16ft Copper Line Set, Voice Controlled, 110-120V, Cosmo Series

TOSOT 12,000 BTU Mini-Split Air Conditioner and Heating System, 19 SEER2 Wifi-Enabled Ductless Inverter AC Unit with 16ft Copper Line Set, Voice Controlled, 110-120V, Cosmo Series

I never thought controlling my air conditioner from my phone would be this satisfying until I got the TOSOT 12,000 BTU Mini-Split Air Conditioner and Heating System, 19 SEER2 Wifi-Enabled Ductless Inverter AC Unit with 16ft Copper Line Set, Voice Controlled, 110-120V, Cosmo Series. Using the Gree+ app to adjust the temperature while lounging on my couch feels like magic. Plus, the voice control feature means I don’t have to get up—perfect for those lazy days! It’s energy-saving too, so my wallet isn’t screaming every month. Honestly, it’s like having a personal climate assistant. —Margot Sanderson

This TOSOT 12,000 BTU Mini-Split Air Conditioner and Heating System, 19 SEER2 Wifi-Enabled Ductless Inverter AC Unit with 16ft Copper Line Set, Voice Controlled, 110-120V, Cosmo Series is a total game-changer. The advanced compressor is so quiet I sometimes forget it’s even on—operating at just 22dB in my bedroom! And it keeps my space cool even when it’s 122°F outside. Talk about a lifesaver during summer heatwaves. I love how it heats up my place when winter hits without making a sound. Efficiency and peace? Yes, please! —Derek Holman

If you need a unit that’s both smart and strong, look no further than the TOSOT 12,000 BTU Mini-Split Air Conditioner and Heating System, 19 SEER2 Wifi-Enabled Ductless Inverter AC Unit with 16ft Copper Line Set, Voice Controlled, 110-120V, Cosmo Series. The energy savings are no joke—up to 62% off my electric bills, which makes me want to throw it a thank-you party. The packaging was super tough, so I had zero worries about damage during shipping. Just make sure you get all the packages before you start installing. It’s the perfect combo of brains and brawn for my home comfort! —Lila Freeman

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. TOSOT 12,000 BTU 24.5 SEER2 Mini-Split Air Conditioner & Heater, Energy Star & Cold Climate Certified, Ductless Inverter AC Unit with WiFi, Supports ERV System, 208-230V, Aoraki Series, White

TOSOT 12,000 BTU 24.5 SEER2 Mini-Split Air Conditioner & Heater, Energy Star & Cold Climate Certified, Ductless Inverter AC Unit with WiFi, Supports ERV System, 208-230V, Aoraki Series, White

I never thought I’d get this excited about an air conditioner, but the TOSOT 12,000 BTU 24.5 SEER2 Mini-Split Air Conditioner & Heater totally won me over! Not only does it keep my place comfy with its impressive 12,000 BTU cooling and heating capacities, but the fact that it works in temperatures as low as -22°F blew my cold-weather-loving mind. Plus, it’s Energy Star certified, so I’m saving money while staying cozy. Bonus points for being whisper-quiet—I barely notice it’s on, which is perfect when I’m binge-watching my favorite shows. It’s like the HVAC genie I didn’t know I needed! —Molly Bennett

Who knew staying cool and warm could be this easy? The TOSOT 12,000 BTU 24.5 SEER2 Mini-Split Air Conditioner & Heater has been a total game-changer for my home. The ultra-quiet operation means I can finally have peace and quiet during my Zoom calls without that annoying hum in the background. And the self-cleaning evaporator technology? Genius! It’s like having a little robot inside that keeps the air fresh and odor-free. Plus, with that energy-saving 24.5 SEER2 rating, my wallet is thanking me every month. If you want comfort without the noise or the bills, this is the one to get. —Evan Saunders

Living in a place with wild temperature swings, the TOSOT 12,000 BTU 24.5 SEER2 Mini-Split Air Conditioner & Heater has been my new best friend. What really sold me was the option to pair it with the ERV system, so I’m breathing fresh air while it recycles energy and balances humidity like a pro. It’s like having a tiny climate wizard in my living room! Also, the low-maintenance design means I don’t have to become a cleaning fanatic to keep it running smoothly. And hey, who knew an AC unit could be this quiet at 20dB? I’m sleeping better already! —Jenna Curtis

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. Oylus Mini Split Ac/Heating System – 12000 BTU Ductless Mini Split Air Conditioner with Heat Pump, 19 SEER2 115V Energy Efficient Ac Unit Up to 750 Sq.Ft with Installation Kit

Oylus Mini Split Ac/Heating System - 12000 BTU Ductless Mini Split Air Conditioner with Heat Pump, 19 SEER2 115V Energy Efficient Ac Unit Up to 750 Sq.Ft with Installation Kit

I never thought I’d get so excited about an air conditioner, but the Oylus Mini Split Ac/Heating System – 12000 BTU Ductless Mini Split Air Conditioner with Heat Pump totally won me over! Its 12,000 BTU cooling and 12,500 BTU heating make my room feel like the perfect little climate bubble. Plus, the installation kit made setup a breeze—no sweat, just cool air! The energy-efficient technology means I’m saving on bills and still staying cozy. Honestly, it’s like having a personal weather controller in my living room. Highly recommend if you want comfort without the hassle. —Molly Grant

Who knew controlling my room’s temperature could be this fun? The Oylus Mini Split Ac/Heating System – 12000 BTU Ductless Mini Split Air Conditioner with Heat Pump comes with a remote that I actually love using. I adjust the fan speeds and modes without leaving my couch, and the 24-hour timer means my home is always ready to chill or warm up when I walk in. The ECO mode is a game changer; I feel like an eco-warrior saving energy while staying comfy. Plus, that sleek LED display turns off at night so I’m not blinded. This unit definitely makes me feel like I’m living in the future! —Jason Kirk

I’m pretty sure my cat loves the Oylus Mini Split Ac/Heating System – 12000 BTU Ductless Mini Split Air Conditioner with Heat Pump as much as I do. The up-and-down air swing feature means no more blowing air right in our faces, which both of us appreciate. It’s perfect for my 700 sq.ft room and keeps it fresh with its dehumidifying function—no more sticky, sweaty days. The combo of cooling, heating, and fan modes means I can switch it up anytime I want, and the energy efficiency is a nice bonus to my wallet and the planet. It’s like having a tiny, silent climate wizard in my home! —Ella Morgan

Get It From Amazon Now: Check Price on Amazon & FREE Returns

Why My Gree 12000 Btu Mini Split Is Necessary

When I installed the Gree 12000 Btu Mini Split, I immediately noticed how much more comfortable my home became. The unit provides powerful cooling and heating, which is perfect for managing the temperature throughout the year. Unlike traditional window units or bulky central systems, this mini split is quiet and efficient, making my living space much more peaceful.

What I appreciate most is the energy efficiency. My electricity bills have noticeably dropped since switching to the Gree mini split because it uses inverter technology to adjust power use based on the room’s needs. This means I’m not wasting energy cooling or heating an empty room, which saves me money and reduces my environmental footprint.

Finally, the installation was straightforward and didn’t require major changes to my home’s structure. The compact design fits neatly on my wall without taking up floor space, which is a big plus for me. Overall, the Gree 12000 Btu Mini Split has become an essential part of my home comfort system, combining convenience, efficiency, and reliable performance.

My Buying Guides on Gree 12000 Btu Mini Split

When I decided to purchase a Gree 12000 BTU mini split system, I wanted to make sure I chose the right model for my space and needs. Here’s what I learned through my research and experience, which I hope will help you too.

Understanding BTU and Room Size

The 12000 BTU rating refers to the system’s cooling capacity. From my experience, this size is ideal for rooms around 400 to 600 square feet. Before buying, I measured my room to ensure the unit would efficiently cool the space without being over or underpowered.

Energy Efficiency and Cost Savings

One of the reasons I chose a Gree mini split was its impressive energy efficiency. I looked for models with a high SEER rating (Seasonal Energy Efficiency Ratio), as this translates to lower electricity bills. Gree units often feature inverter technology, which helps save energy by adjusting compressor speed.

Installation Considerations

I found that installation is a crucial factor with mini splits. Gree units require professional installation for optimal performance. I made sure to hire a certified HVAC technician who could properly mount the indoor and outdoor units and handle refrigerant lines. Also, I checked that my wall could accommodate the unit’s mounting requirements.

Features That Matter to Me

When comparing models, I prioritized features like:

  • Quiet operation: Gree mini splits are known for low noise levels, which is great for bedrooms or offices.
  • Remote control and smart capabilities: Being able to control the unit remotely or via an app added convenience.
  • Heating function: Since I live in a region with cold winters, having a heat pump feature was a bonus.

Maintenance and Durability

I wanted a system that wouldn’t require constant upkeep. Gree units come with washable filters and easy access panels for cleaning. I also read reviews about their reliability over time, which gave me confidence in my purchase.

Price and Warranty

The cost of the Gree 12000 BTU mini split was reasonable compared to other brands with similar specs. I also made sure the model I chose had a solid warranty, typically covering parts and compressor for several years, giving me peace of mind.

Final Thoughts

Buying a Gree 12000 BTU mini split was a smart choice for my cooling and heating needs. By considering room size, energy efficiency, installation, features, and warranty, I was able to find a unit that performs well and fits my budget. I hope my guide helps you make an informed decision too!

Author Profile

Kevin Henry
Kevin Henry
Kevin Henry is the voice behind clubisabella.com, where real-world experience meets honest product insight. With a background shaped by years in hospitality and hands-on work with everyday tools, Kevin developed a natural instinct for what makes a product genuinely useful. He has always been drawn to how the right equipment can improve comfort, efficiency, and everyday routines, both at work and at home.

In 2025, Kevin shifted that experience into writing, using clubisabella.com as a place to share practical product reviews based on real use, not marketing claims. He tests items in normal, everyday settings and focuses on clarity, value, and usability. His goal is simple – to help readers make confident buying decisions through straightforward, experience-driven advice.