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Best 18000 btu mini splits - Holiday Sale 2025

Last Updated - December 14, 2025

1
Best Choice

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

ROVSUN

ROVSUN 18000 BTU Floor Ceiling Mounted Air Conditioner with Inverter & Remote Control, 23 SEER2 Ductless Mini Split AC/Heating System with Pre-Charged Condenser, Heat Pump & Installation Kit, 230V

ROVSUN

$1,099.99

More Details
Main highlights
- ❄️ Ultra Quiet Operation: Ultra-quiet 39dB in mute mode operation with uniform air distribution system ensures peaceful indoor environment. Rapid cooling and heating (61°F-88°F), perfect for home, bedrooms, living room, offices, shopping mall, restaurant, both residential and commercial applications
- ❄️ Smart Operation: Operating this diy mini split ac is an easy-understanding and enjoyable cooling experience ( 61℉ - 88℉). We can set all functions on remote control ( Fan Speed Selection, Sleep Mode, 24 Hour Timer, ECO Mode, Turbo Mode, and Mute Mode )
- ❄️ Powerful Cooling and Heating Performance: High-performance 18000 BTU system delivers rapid cooling and heating, including in temperatures as low as -13°F and as high as 131°F instead of others' 5-118°F for extreme weather use. Perfect for year-round comfort in spaces up to 1000 sq.ft. Features heat pump functionality and effective dehumidification mode for different daily needs
- ❄️ Energy-Saving Air Conditioner Unit: Advanced inverter technology with leading 23 SEER rating delivers superior performance through ensuring that the compressor speed adjusts automatically to save energy based on indoor temperature changes, saves up to 40% energy with intelligent frequency adjustment
- ❄️ 100% Satisfaction: Please remain upright for 24 hours before installation. Professional licensed HVAC technician installation recommended for optimal performance and safety. Installation kit includes 16.4 copper lines & signal cord (extra power cord is needed). Please schedule installation after receiving both 2 seperate boxes (delivery-time may vary)
$1,099.99
2

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Della

DELLA Serena 22 SEER2 18000 BTU Smart Wifi Mini Split Heat Pump Works with Alexa, Energy Star 1.5 Ton Pre-Charged 230V Ductless AC Unit Inverter System for Rooms up to 1000Sq.Ft, 16.4ft Install Kit

Della

$1,099.96

More Details
Main highlights
- Strong System: This mini split ac equipped with 4D air flow(up-down left-right), I feel mode, 24 hour timer, sleep mode, eco energy saving mode, multiple fan speeds, turbo function, heating, cooling, auto modes, and dry mode for dehumidifying. Suitable for rooms up to 1000 Sq.Ft. Ideal ac for homes, bedrooms, living areas, offices, and commercial spaces such as stores, eateries, and warehouses. Besides, maintenance is simple and quick, requiring only seasonal cleaning of the reusable filters
- Stay Cool, Stay Smart: Experience seamless smart home integration with Alexa/Google Home voice control or the DELLA app WIFI to control your ac and heater from anywhere. The exclusive geo-location function optimizes comfort and energy efficiency, adjusting the temperature based on your location to save energy when you're away and ensure the perfect climate when you arrive home. Remote Control also included for DELLA Mini Split AC/Heating System
- Leading Technological Frontiers: PureClean tech prevents dust buildup and defrosts the indoor unit, keeps your air fresh and your home healthier. Equipped with a bottom heating element, the outdoor unit prevents ice buildup during winter operation, ensuring efficient defrosting and reliable performance even at 5℉/-15℃. Energy Star certified mini split helps you save more-apply for government rebates. DELLA is a 2025 Red Dot Design Award Winner, with 24/7 live chat and a lifetime warranty
- Energy Efficient Cooling & Heating: DELLA 18000 BTU/h, higher 22 SEER2 rating, 208V-230V, UL/ETL Listed, AHRI Certified 1.5 ton pre-charged heat pump (up to 5℉/-15℃) ac unit features inverter technology, the air conditioner changes the power supply frequency without frequently turning the compressor on and off, provides up to 57% power savings. This split unit is ultra silent at only 22 dBa in mute mode
- 16.4ft Installation Kit: included (Standard size 1/4" & 1/2" outer dimension copper pipes). The length for drain pipe is 78.7". Maximum Fuse Size is 20A, Line-set vacuuming is required during installation. Any alteration of line-set length requires adjusting freon levels.This system mandates professional installation - it's not a DIY mini split AC. Pre-loaded with R32 refrigerant for up to 25 ft
$1,099.96
3

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

COSTWAY

COSTWAY 18,000 BTU Mini Split Air Conditioner, Energy Star, with Heat Pump, 21 SEER2 Inverter Split AC Unit with 24H Timer, Remote Control for Rooms up to 1250 Sq.Ft (Airtural Series)

COSTWAY

$799.99

More Details
Main highlights
- ️ENERGY STAR&AHRI Certified: Most efficient 2024 Energy Star verified. COSTWAY mini spilt ac unit has much lower operating costs and is kinder to the environment. Enjoy Eco-friendly lifestyle, enjoy reduced power bills than non-Energy Star devices. GWP of air conditioning refrigerants is 675.
- ️COSTWAY's superior quality and design are backed by an industry-leading manufacturer's warranty. This warranty covers 5 years of parts replacement and 8 years of compressor coverage, ensuring customers can rely on our products for years to come. In addition to this, the installation of this equipment should be done only by a Licensed HVAC Installer.
- [What’s Included:]The package includes indoor and outdoor units, remote control and installation kit with 13 ft copper piping set and communication wire. The remote control with 26 ft effective control distance provides full control to the AC unit, and it is equipped with child lock for extra security.
- [Powerful Output & Premium Compressor:]With a cooling capacity at 17,000 BTU, a heating capacity at 17,700 BTU and a 1.5 ton heat pump, this mini split air conditioner enables a wide coverage up to 1250 sq.ft. The durable outdoor unit can withstand a max operating temperature from 14℉-122℉, offering stable performance under extreme weather conditions.
- [Innovative Inverter Technology:]This technology adjusts the compressor speed to maintain the set temperature without frequently turning the compressor on and off, which has less energy cost and offers stable cooling. With a 21 SEER2 rating and a 9 HSPF2 rating, this unit is built to be energy efficient. It is also ETL approved and AHRI certified.
- [Built-in Self-Cleaning Function: ]The self-cleaning at 135℉ largely helps to simplify regular cleaning and protect your family’s respiratory health, and the process is as follows: condensation, frosting, melting, sterilization, washing and ventilation. Besides, the filters are also removable and washable under water.
- [4-in-1 Design for Year-Round Comfort:]This mini split AC unit features cool, dry, heat and fan mode and other practical functions including ℉/℃ temp display, turbo mode, sleep mode and 24H timer. With a 60℉-90℉ adjustable temp range and 618 CFM 4D powerful air flow, this AC unit delivers efficient cooling and heating performances, ideal for home or commercial use.
- Tips：Pre-charged with the advanced R32 refrigerant, our mini split stands as the premier eco-conscious option. In contrast, competitors rely on outdated refrigerants, which pose greater harm to the environment. Should the need arise to supplement refrigerant levels, kindly inquire about the accessibility of R32 at your nearby vendor.
$799.99
4
Best Value

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Garvee

18,000 BTU Ductless Mini Split Air Conditioner & Heater, 23 SEER Inverter AC Unit, Cools & Heats Up to 1,250 Sq. Ft, Wall-Mount Split-System with Heat Pump, Alexa/Compatible, 16Ft Installation

Garvee

$999.99

More Details
Main highlights
- User-Friendly Remote & Programmable Timer - Control all AC features easily with the included backlit LCD remote. The 0.5–24 hour programmable timer lets you schedule automatic on/off times for convenience and energy savings. The remote’s display screen switches off automatically to avoid disturbing your sleep.
- Self-Cleaning & Auto Defrost System - Designed for low maintenance and healthy air, this unit features a 131°F high-temperature self-cleaning cycle and washable filter for cleaner, fresher indoor air. The outdoor unit’s auto-defrost function prevents damage and ensures top performance in all weather.
- Quiet & Easy Installation - Operates at a whisper-quiet 52 dB(A), ideal for bedrooms, living rooms, or offices. 4-way air flow design ensures fast and even temperature distribution. A full 16.4ft installation kit is included (copper line set, accessories, drainage extension). Professional installation by a licensed HVAC technician is recommended for best performance.
- Powerful & Energy Efficient Cooling & Heating - With a high 18,000 BTU capacity and an impressive 23 SEER2 energy rating, this ductless mini split AC efficiently cools and heats spaces up to 1,250 sq. ft. Advanced DC inverter technology and pre-charged refrigerant maximize energy savings, helping you reduce electricity bills by up to 30%.
- Comfort with Smart Controls - Enjoy 5 versatile operation modes—Cool, Heat, Fan, Dry, and Auto—plus 4 fan speeds, ECO, sleep mode, IFEEL, turbo, and dehumidification. Compatible with Alexa and Home for voice or app-based control. Set your preferred temperature (61°F–88°F) and personalize your comfort from anywhere.
$999.99
5

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Mountman

Mountman 18000 BTU Mini Split AC/Heating System,19 SEER2 208/230V Energy Efficient Ductless Inverter System,Cools Up to 1250 Sq.Ft with Pre-Charged Condenser,Heat Pump & Installation Kits

Mountman

$699.99

More Details
Main highlights
- Remote Control, Silent Comfort:Take control of your comfort with our mini split ac. The user - friendly remote lets you adjust settings from the comfort of your bed or sofa. With a 24 hour timer, you can customize when it runs, saving energy. Its ultra - quiet operation ensures peaceful sleep, and the remote's display auto - shuts off after 10 seconds of inactivity, so nothing disturbs your rest
- Rapid Refreshment for Your Space:Beat the heat in a flash with our 18,000 BTU mini split ac. Thanks to advanced inverter technology, it’s a cooling powerhouse, effortlessly chilling rooms up to 1250 square feet. Whether it’s your bedroom, living room, office, or apartment, enjoy swift, consistent cooling that transforms any space into a comfortable oasis in no time
- Auto-Maintain, Constant Comfort: Our mini split air conditioner takes the hassle out of maintenance with intelligent self-cleaning and automatic defrost functions. The high-temperature self-clean keeps the indoor unit dry, while the washable anti-dust filter maintains fresh air with a quick monthly rinse. When temperatures drop to -4°F, the auto defrost feature activates, ensuring uninterrupted heating. With these advanced features, your AC runs efficiently in any climate, delivering consistent year-round comfort with minimal effort
- All-Season Comfort:This 18000 BTU mini split AC and heating system offers solid climate control, with a precision-engineered compressor and energy-saving operation. Pre-charged with advanced R32 refrigerant, it’s a practical eco-friendly option—providing efficient cooling in summer and reliable heating in winter. The optimized design reduces frequent compressor cycling, helping extend service life while maintaining steady comfort year-round
- 4 Flexible Modes for Year-Round Comfort :Choose from Cool, Heat, Dry, Fan modes to adapt to any season. Customize airflow with 4 fan speeds (Low/Medium/High/Auto), plus specialized Sleep Mode (ultra-quiet 26dB), ECO Mode (up to 30% energy savings), and Turbo Boost for rapid cooling/heating
$699.99

Best 18000 btu mini splits - Holiday Sale 2025

ROVSUN 18000 BTU Floor Ceiling Mounted Air Conditioner with Inverter & Remote Control, 23 SEER2 Ductless Mini Split AC/Heating System with Pre-Charged Condenser, Heat Pump & Installation Kit, 230V

DELLA Serena 22 SEER2 18000 BTU Smart Wifi Mini Split Heat Pump Works with Alexa, Energy Star 1.5 Ton Pre-Charged 230V Ductless AC Unit Inverter System for Rooms up to 1000Sq.Ft, 16.4ft Install Kit

COSTWAY 18,000 BTU Mini Split Air Conditioner, Energy Star, with Heat Pump, 21 SEER2 Inverter Split AC Unit with 24H Timer, Remote Control for Rooms up to 1250 Sq.Ft (Airtural Series)

18,000 BTU Ductless Mini Split Air Conditioner & Heater, 23 SEER Inverter AC Unit, Cools & Heats Up to 1,250 Sq. Ft, Wall-Mount Split-System with Heat Pump, Alexa/Compatible, 16Ft Installation

Mountman 18000 BTU Mini Split AC/Heating System,19 SEER2 208/230V Energy Efficient Ductless Inverter System,Cools Up to 1250 Sq.Ft with Pre-Charged Condenser,Heat Pump & Installation Kits

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