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Manastin 12000BTU Mini Split AC & Heating System, 19 SEER2, 115V

  • Based on 142 reviews
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Availability: 20 left in stock
Fulfilled by EYSTER

Arrives Tuesday, Sep 29
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Set name: 12000BTU-115V-19 SEER2


Features

  • Wide Coverage for Optimal Comfort: Manastin Inverter air conditioner is capable of both cooling and heating rooms up to 750 sq.ft., providing year-round comfort. It uses the latest R32 refrigerant, a more eco-friendly option compared to the outdated refrigerants used by many competitors, which can be harmful to the environment. If additional refrigerant is needed, simply consult with your local dealer for refills. Stay comfortable and environmentally conscious with this innovative cooling solution.
  • Multiple Powerful Functions for Ultimate Comfort: Our split air conditioner comes with 5 versatile modesCooling, Heating, Auto, Fan, and Dryalong with 4 adjustable fan speeds (Low, Medium, High, Auto) to suit your needs. It also features a 24-hour timer, Sleep Mode for enhanced comfort during rest, Eco Mode for energy-saving operation, and a Turbo Boost function for fast cooling or heating when needed.
  • Quiet Operation for a Peaceful Environment: This air conditioner operates with minimal noise, ensuring a quiet and comfortable environment. Whether you're working, sleeping, or relaxing, you can enjoy cooling or heating without disruptive sounds, making it ideal for bedrooms, offices, and living spaces.
  • Automatic Defrost Function: This air conditioner includes an automatic defrost function to prevent ice buildup, ensuring efficient operation even in colder temperatures.
  • Complete Package with Easy Maintenance: Our air conditioner comes with all the necessary accessories for easy setup, shipped in two separate packages which may arrive at different times. The filters are washable for easy maintenance and long-term use. Please note that professional installation is required to ensure proper setup and optimal performance.

Brand: Manastin


Capacity: 1 tons


Cooling Power: 12000 british thermal units


Special Feature: Fast Cooling


Product Dimensions: 8.2"D x 32.3"W x 11.9"H


Seasonal Energy Efficiency Ratio (SEER): 19


Color: White


Voltage: 115 volts


Noise Level: 41 db


Refrigerant: R-32


Cooling Power: 12000 british thermal units


Additional Features: Fast Cooling


Color: White


Noise: 41 db


Refrigerant: R-32


Inverter Type: Has Inverter


Installation Type: Split System


Compressor Type: rotary_scroll


Outdoor Unit Compatibility: Requires New Outdoor Unit


Air Conditioner Application: Indoor Residential/Small Commercial


Voltage: 115 volts


Wattage: 1500 watts


Seasonal Energy Efficiency Ratio (SEER): 19


Annual Energy Consumption: 3.51 KW


Capacity: 1 tons


Floor Area: 750 square_feet


Room Type: Bedroom


Heating Capacity: 12500 BTU


Brand Name: Manastin


Model Name: Manastin Mini Split Air Conditioner & Heater with Inverter, 19 SEER2 Energy Saving AC Unit, Complete Installation Kit


Model Number: MS24SAC120S


Included Components: Remote Control, Compressor


Manufacturer: Manastin


Warranty Description: 1 year


Item Dimensions D x W x H: 8.2"D x 32.3"W x 11.9"H


Item Weight: 89.3 pounds


Control Method: Remote


Controller Type: Remote Control


Operating Mode: Cooling


BEE Star Rating: 5 Star


Form Factor: Mini-Split


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Sep 29

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Peaceful Cooling & Heating For My Bedroom
I installed this mini split in my master bedroom, and it runs impressively quiet. Fan volume stays low even on higher settings, and sleep mode maintains stable temps overnight without noisy cycling. It’s a great fit for my bedroom. Its 19 SEER2 inverter efficiency doesn’t disappoint. It lowers my electric bill significantly while providing consistent cooling , so I’m not throwing away energy to stay comfortable. overall I would recommend ... show more
Reviewed in the United States on August 8, 2026 by James

  • Very impressed
Very impressed with this mini split! It cools the room quickly and runs much quieter than I expected. The 18,000 BTU power is perfect for larger spaces, and the inverter system helps keep the temperature stable without constantly turning on and off. Installation kit included almost everything needed, which made setup easier. The gray color also looks modern and blends nicely with the room. Great value for the price so far. ... show more
Reviewed in the United States on May 22, 2026 by ddg

  • I would buy this unit again
Set name: 12000BTU-115V-19 SEER2
Looks good, super quiet, and blows cold cold air! UPS delivered it upside down with the box all beat up and it still works great so must be a solid unit. I would buy again
Reviewed in the United States on July 31, 2026 by ryan t rock

  • Nota good item
Set name: 12000BTU-115V-19 SEER2
Not a good product
Reviewed in the United States on July 15, 2026 by Richard P.

  • I should recieve a free unit!!!!
Set name: 18000BTU-230V-19 SEER2
I should recieve a free unit from the company. Not because the priduct is bad, but because the product is so go four of our friends have ordered them since installing the inital unit. We bought one for my husbands 72 year old uncle. His ac unit went out instead of replacing the unit .We bought him the 18000btu unit. The remote control is easy enough for him to operate. With the easy install we had it mounted and running with in a few hours. (Would of been quicker but we had to install the 220 electric line) The unit is very quiet. The size of the room : His living room has an open floor plan with the kitchen and dinning room square foot is roughly 579 square foot but we went with the bigger unit due to vaulted celinings and "the men " (husband and uncle) didn't want the unit to be over worked. So far it has been a very reliable product, Only time will tell if it cools everything down. Since installing four of our friends have asked about product and requested help installing thier when they come in. We will be purchasing three unit ourself in the near future. ... show more
Reviewed in the United States on July 24, 2026 by Melinda

  • Lower Power Costs
It rapidly cools my open room and works well for heating in cold weather. Eco mode reduces power consumption, and dry mode removes muggy indoor moisture. Thanks to inverter technology, my monthly power costs are lower, and versatile modes adapt to everyday use all year long.
Reviewed in the United States on August 11, 2026 by Jack jack

  • 115V 12K BTU- cheaply put together. May be worth it for some.
Set name: 12000BTU-115V-19 SEER2
I would say it’s cheaper for a reason. Had I not installed some mini splits before this would have been very frustrating. In some aspects it still was, I installed on a flat 1/2 zip system wall in. A trailer. The clips would not keep it locked it, I had to drill holes and zip them the to the clips. They really are all built very similar but the build quality of the Della units are much better. The heat exchanger/condenser is only protected with With a plastic shroud that sits right up against the fins. That said, it seems to be working fine. The whip it comes with is 14 gauge and I’m not sure why. Most everything I saw online for 115v says 12 gauge. It was also not really something I felt comfortable with as it could be damaged easy. I bought an armolite 12/2 as it’s going on my work trailer. I’ll also need to ad some new shrouds to help keep them protected, I’d do this even if it was on my house. We will see how it works but it seems to be working as it should. But if you haven’t done one before don’t plan on the directions being helpful. ... show more
Reviewed in the United States on July 23, 2025 by JLM

  • Manastin 12000BTU Mini Split Air Conditioner & Heater with Inverter - 1,000 square foot area.
Set name: 12000BTU-115V-19 SEER2
Excellent unit. Have used in both summer and winter at this point in Kansas. Cooling is great but heating is a little lacking for ~1,000 sf. Although not covered in the installation manual, I did evacuate the system which did require an adapter to fit the orifice. Unit produced very little noise in normal operation and was pretty easy to install. The remote works great but the icons could should be changed for more clarity. A fire sign for heat versus a sun would be a little less confusing to my wife. ... show more
Reviewed in the United States on December 2, 2025 by william w.

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