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Finding the best mini split for cold weather can be tough. The YITAHOME 12000 BTU Mini Split AC/Heating System is our top pick due to its high SEER2 rating of 20, which ensures energy efficiency. The Rellytech 11500 BTU Mini Split is a great value choice, but it sacrifices some heating capacity compared to the top pick. Many buyers face the choice between energy efficiency and heating power. This article will guide you through the best options available.
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The Top 8
Top 8 Mini Splits Reviewed in Detail
Explore our detailed reviews of mini splits designed for cold weather performance.
1. Top Pick
YITAHOME 12000 BTU Mini Split AC/Heating System 115V 20 SEER2
- Energy-Efficient Cooling & Heating: Our inverter mini split air conditioner is designed for maximum energy conservation and comfort. Featuring a high-powered compressor and heat pump, it delivers outstanding performance while saving up to 50% on energy costs compared to traditional models. Suitable for cooling and heating spaces up to 750 sq. ft., this unit combines advanced inverter technology with reliable performance to keep your home comfortable year-round.
- Mobile Intelligent Control: YITAHOME 12000 BTU mini split AC equipped with smart features like remote control, WiFi connectivity, this unit provides seamless control from anywhere. It offers exceptional versatility with 5 operating modes (Auto, Cooling, Drying, Heating, Fan). Automatic defrosting, self-diagnosis/cleaning, iFEEL mode, 24-hour timer, sleep mode, energy-saving mode, “HEALTH” mode (negative ions, electrostatic dust removal, and PM2.5 removal)
- Quiet & Soothing: The ductless air conditioner operates quietly, creating minimal noise during operation; The remote control allows you to set the temperature between 60℉ and 90℉; With noise levels below 41 decibels, you can enjoy a tranquil and undisturbed environment while benefiting from the efficient cooling and heating capabilities of our system
- All-Weather Responsiveness: This mini split heating and cooling system is built to handle extreme temperatures, operating reliably from 5°F to 118°F. Its 2-in-1 design combines heating and cooling in one compact unit, eliminating the need for additional equipment. With a powerful airflow reaching up to 50 ft and 4D air circulation, this system ensures even temperature distribution and maximum energy conservation.
- Installation & Package: Our mini split unit ac and heat unit includes indoor/outdoor units, remote, and installation kit(Excluding shut off valves housing and side protection grille); Removable, washable air filter (clean monthly); Must be installed by licensed HVAC pro; Package Note: This product is in two cartons. Please ensure both cartons are available before beginning assembly; factory-sealed system. Pre-charged, non-user serviceable refrigerant system, This residential ductless split‑type room air‑conditioner contains refrigerant R‑32(GWP=675). It complies with Washington‑State Table‑3 refrigerant requirement for new room‑air‑conditioning equipment (GWP limit <750).
The YITAHOME 12000 BTU Mini Split AC/Heating System offers efficient cooling and heating. It has a high SEER2 rating of 20, which helps save energy. This model is compact and easy to install. It’s best for small to medium-sized rooms.
Pros
High energy efficiency reduces bills. Quiet operation ensures comfort. Easy installation for quick setup.
Cons
Limited heating capacity for very cold climates. May not cover large spaces effectively.
Great for apartments or small homes. Suitable for those wanting cost-effective heating and cooling.
The YITAHOME system is a solid choice for energy-conscious users looking for a reliable mini split.
2. Best for Cold Weather
Rellytech 11500 BTU Mini Split AC/Heating System 17 SEER2 Ductless Inverter
- One Unit, All Seasons — 11500 BTU for 550 Sq.Ft.: This ductless mini split replaces your window AC, space heater, and dehumidifier. It heats reliably down to -4°F with auto-defrost and maintains stable cooling at outdoor temperatures up to 122°F. Cool, Heat, Fan, Dehumidify, Turbo, Sleep, and Eco modes plus a 24H timer deliver customizable comfort for bedrooms, home offices, garages, basements, and living areas up to 550 sq.ft.
- Ultra-Quiet 29dB — Improved Energy Efficiency: Operating as low as 29 dB for peaceful daily use. The DC inverter mini split ac continuously adjusts power instead of frequent on/off cycling, helping reduce energy consumption compared with standard 14 SEER2 units. Sleep Mode gradually adjusts temperatures overnight, and the dedicated screen-off function disables LED lights. It uses low-GWP R32 refrigerant and is certified ETL & AHRI verified.
- Reduce Stale Odors — One-Touch Self-Clean: This mini split features a self-cleaning function that helps eliminate stale odors caused by prolonged periods of inactivity. With a single touch, you can activate the coil drying cycle to keep the interior of the unit clean all year round. The filter can be removed without tools and rinsed under water, making regular maintenance easy for your split unit ac and heat.
- 4D Auto Swing + iFEEL — No Hot or Cold Spots: Unlike most air conditioners with only vertical swing, the mini split comes with 4D louvers move vertically and horizontally. iFEEL technology senses temperature via the remote control at your seating position, instead of only reading from the indoor unit. Enjoy balanced airflow and reduce uncomfortable direct air blasts.
- 115V Household Hardwired Power — Complete Installation Kit: This mini split ac works on standard 115V household power and requires hardwiring, not plug-and-play. Factory pre-charged R32 refrigerant, paired with a 16.42ft copper line set and full installation kit (power cord not included). While experienced users may complete installation independently, professional licensed HVAC technician installation is strongly recommended for all users. Vacuum-pumping is required before startup. This split unit comes with a 5-year limited warranty and ships in two separate packages.
The Rellytech 11500 BTU Mini Split AC/Heating System is a versatile unit. It can heat down to -4°F, making it effective in colder weather. It offers multiple modes including cooling, heating, and dehumidifying.
Pros
Multi-functional with heating and cooling. Excellent performance in low temperatures. User-friendly features for easy operation.
Cons
May be too powerful for small rooms. The installation process might require professional help.
Ideal for homes in colder climates. Good for those needing a year-round climate control solution.
The Rellytech model is excellent for cold weather and offers many features for comfort.
3. Most Versatile
Albott 12,000 BTU Mini Split Air Conditioner and Heater SEER2 18, 115V
- All-in-One Comfort Control: This mini split AC/heating system provides cooling, heating, dehumidifying, and fan modes with 61°F–90°F settings, plus a 24-hour timer and sleep mode for everyday comfort
- Energy-Efficient Performance: Featuring an advanced invert heat pump with a SEER2 18 rating, this system delivers strong airflow while cutting energy usage and electricity costs without reducing comfort
- Stable & Reliable Year-Round Use: This 12,000 BTU ductless mini split AC/heating operates in extreme conditions (5°F to 122°F) and efficiently covers spaces up to 750 sq. ft. for all-season comfort
- Quiet Operation & Easy Control: This split AC unit runs quietly below 29dB to create a peaceful environment at home or work, with simple, intuitive controls for effortless daily operation
- Self-Cleaning & Warranty Protection: This Air Conditioner offers self-cleaning function, easily removable filters and air blades for convenient cleaning, plus a 5-year compressor and 7-year parts warranty
The Happy Tao Albott 12,000 BTU Mini Split is known for its energy-efficient performance. It features a SEER2 rating of 18, allowing for significant energy savings. This system also has plenty of comfort features.
Pros
Energy-efficient design saves costs. Multiple modes for personalized comfort. 24-hour timer for convenience.
Cons
May not heat effectively in extreme cold. Limited coverage for larger areas.
Best for medium-sized living spaces. Offers flexibility for those who want various temperature settings.
The Happy Tao system combines efficiency with comfort, making it a solid pick for many homes.
4. Best Value
Rellytech Mini Split AC/Heating System, 18000 BTU, 19 SEER2 208-230V
- Powerful 18,000 Btu Cooling & Heating: Rellytech mini split heat pump system delivers 18,000 BTU cooling and 18,400 BTU heating, covering up to 1,250 sq. ft. Ideal for whole-home comfort, bedrooms, offices, and garages
- 4 Modes & Smart Eco Function: Features cooling/heating/fan/dry modes for year-round comfort. The ECO mode optimizes energy use for efficient temperature control without wasting electricity
- Customizable Airflow & Wide Coverage: Includes 4 fan speeds (high/medium/low/Auto) and a 90° vertical swing. Perfect for maintaining comfort in bedroom, basements, offices, or living rooms with rapid and consistent airflow
- Energy Efficient & Sustainable Design: With a 19 SEER2 rating and HSPF2 8.5, this pre-charged split-system air conditioner reduces energy costs while maintaining strong performance, offering a long-term cooling and heating solution for your home
The Rellytech 18000 BTU Mini Split AC/Heating System packs power. It delivers 18,000 BTU for both cooling and heating. This makes it suitable for larger rooms or open spaces.
Pros
High cooling and heating capacity. Covers larger areas effectively. Smart eco function saves energy.
Cons
Installation may be more complex for some users. Higher initial cost compared to smaller units.
Great for larger homes or offices. Perfect for those needing strong climate control in big spaces.
The Rellytech system is a powerful choice for anyone needing effective heating and cooling in larger areas.
5. Best Premium
Rellytech Mini Split AC/Heating System, 12000 BTU, 19 SEER2 115V/110V
- Powerful 12,000 Btu Cooling & Heating: Rellytech mini split AC/heating system delivers 12,000 BTU cooling and 12,500 BTU heating, covering up to 750 sq. ft. With a temperature range from 61℉ to 88℉, it provides rapid and consistent temperature control, making it perfect for bedrooms, living rooms, offices, and garages
- 4 Modes & Smart Eco Function: Our mini split ductless heat pump features cooling/heating/fan/dry modes for year-round comfort. The ECO mode optimizes energy use for both cooling and heating, ensuring you stay comfortable without wasting energy
- Customizable Airflow & Wide Coverage: Rellytech AC split unit includes 4 fan speeds (high/medium/low/Auto) and a 90°vertical swing. Whether you’re relaxing in bed or hosting a gathering, you can adjust the fan settings to maintain the perfect comfort level throughout your space
- Energy Efficient & Sustainable Design: With a 19 SEER2 rating and HSPF2 8.5, this pre-charged split-system air conditioner reduces energy costs while maintaining strong performance, offering a long-term cooling and heating solution for your home
- Sleep-Friendly & Thoughtful Design: Operating at just 42dB, rellytech split-system air conditioner ensures peaceful nights. Sleep Mode gradually adjusts the temperature for comfort. The 24-hour timer and LED-off function further reduce disturbances. Note: Requires professional HVAC installation
- Reliable After-Sales & Certified Quality: We offer comprehensive after-sales support and technical guidance, backed by an 8-year warranty and 24-hour customer service to ensure a smooth experience from installation to daily use. Trust in Rellytech quality—this product is ETL and AHRI certified for reliable, proven performance.
The Rellytech 12000 BTU Mini Split AC/Heating System offers a balance of performance and efficiency. It has a SEER2 rating of 19, which helps save on energy costs.
Pros
Quick temperature control for comfort. Good efficiency rating. Various modes for versatility.
Cons
Might struggle in extremely low temperatures. Could be noisy for some users.
Suitable for medium-sized rooms. Good for anyone needing reliable heating and cooling.
The Rellytech model is a reliable and efficient option for users who want a dependable mini split.
6. Best for Beginners
COSTWAY 12000BTU Mini Split Air Conditioner& Heater
- [Energy Efficient Cooling & Heating:]Equipped with a high power compressor and 1 ton heat pump, this AHRI Certified pre-charged ac unit allows you to enjoy the convenience of cooling in summer and warming in winter. Besides, with an innovative inverter technology, the air conditioner changes the power supply frequency without frequently turning the compressor on and off, so as to reduce power consumption and prolong the service life of the equipment.
- [5 Modes for All-Year Comfort:]This 12000 BTU split-system AC unit has 5 working modes for you to choose from: auto, cool, dry, heat and fan mode. In addition, this split air conditioner also comes with 4 available fan speeds (low/medium/high/auto), sleep mode, ECO mode, iFEEL & turbo function to meet various needs.
- [Easy Control & Quiet Operation:]The handy remote control enables you to control this mini split AC unit from your comfortable bed or sofa conveniently. The smart 0.5-24 hour timer and low-noise operation ensure a peaceful sleep time. What’s more, the display screen on the remote control will be turned off automatically when there is no operation within 10s, which will not disturb your sleep.
- [Self Cleaning & Auto Defrost:]Designed with a self-cleaning function at high temperature of 134.6℉ and a washable filter, this split air conditioner can automatically clean its interior and keep the air in your home fresh and clean. Moreover, the outdoor unit features an auto-defrost function to avoid damage and improve energy efficiency.
- 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.
The COSTWAY 12000BTU Mini Split offers energy-efficient cooling and heating. It features a 1 ton heat pump and operates quietly. This model is straightforward to use and install.
Pros
Energy-efficient design saves money. Simple controls for easy operation. Compact size fits in various spaces.
Cons
Limited heating capacity in colder regions. May require professional installation for best results.
Great for apartments or smaller homes. Suitable for those wanting a budget-friendly option.
The COSTWAY mini split is a practical choice for budget-conscious users seeking reliable climate control.
7. Best Heavy-Duty
Senville LETO Mini Split Air Conditioner, Heat Pump, White, 24000 BTU
- Alexa Enabled Mini Split AC/Heating System: Integrate with voice control or app, allowing you to adjust your mini split air conditioner from anywhere. Set routines for temperature changes.
- Versatile 4-in-1 Mini Split: All-season solution with air conditioning, heat pump (functional up to 5F/-15C), dehumidifier, fan, and turbo function. Includes a DC Inverter that’s UL Listed, AHRI Certified, and works with Alexa.
- Stylish & Functional Mini Split AC: Suitable for both home and business. Provides performance without compromising aesthetics. Ideal for bedrooms, living areas, stores, eateries, and warehouses.
- Installation Package Included: Includes indoor air handler, outdoor condenser, remote control, and installation kit with a 16ft. line set and communication wire. Pre-loaded with refrigerant for up to 25 ft. Note: Professional installation required.
- 5 Year Manufacturer’s Warranty: Includes 5 years on parts replacement and 5 years on the compressor. Senville offers complimentary technical assistance. Labor not included.
The Senville LETO Mini Split is a high-capacity option at 24000 BTU. It integrates with smart home systems for easy control. It also offers multiple modes for year-round comfort.
Pros
Smart home compatibility enhances convenience. High capacity for effective heating and cooling. Quiet operation keeps the atmosphere comfortable.
Cons
Requires more space for installation. Higher price point than smaller units.
Best for larger homes or open spaces. Ideal for tech-savvy users wanting smart features.
The Senville LETO system is a premium choice for those needing powerful and smart climate control.
8. Best Splurge
Temprium 12000 BTU Mini Split Air Conditioner, 115V 22 SEER2 AC & Heat Pump
- 【Unmatched Energy Efficiency with 22 SE2ER2】 Slash your utility bills with our advanced Inverter technology and industry-leading 22 SEER2 rating. Unlike standard units that constantly stop and start, our DC Inverter compressor adapts its speed to maintain the perfect temperature with minimal energy consumption. Paired with eco-friendly R32 refrigerant (GWP 675), this 115V mini split system delivers powerful 12,000 BTU cooling and 12,300 BTU heating while being kind to the environment. It’s the smart, green choice for your home.
- 【Powerful & Fast Year-Round Comfort】 Designed for spaces up to 750 sq. ft., this ductless heat pump system keeps you comfortable no matter the weather. Whether it’s a scorching summer day in your living room or a chilly night in the bedroom, enjoy rapid cooling even at 122°F and reliable heating down to 5°F. Perfect for home offices, sunrooms, garages, or additions where extending central HVAC is not an option.
- 【Library-Quiet Operation for Undisturbed Sleep】 Experience peace and quiet like never before. With noise levels as low as 23 dB (quieter than a whisper!), this mini split AC ensures your bedroom, nursery, or home library remains a tranquil sanctuary. Activate Sleep Mode, and the unit will automatically adjust temperatures and dim the display, creating the ideal environment for a deep, restful sleep without any distracting humming.
- 【Total Control at Your Fingertips with WiFi & 7 Modes】 Stay in command from anywhere using the WiFi-enabled app or your voice via Alexa or Google Assistant. Forgot to turn off the AC? Use your phone. Want it cool before you arrive home? Schedule it. Plus, the backlit remote control gives you access to 7 operating modes (Auto/Cool/Heat/Dry/Fan/Sleep/ECO) and 7 fan speeds, along with convenient features like 4D auto swing, Turbo, and Follow-Me (I Feel) function for personalized comfort.
- 【Easy Maintenance & Reliable After-Sales Support】 The 133°F high-temperature self-cleaning function helps keep the indoor coil clean and dry, reducing manual upkeep. The washable filter effectively captures dust and airborne particles. We provide comprehensive after-sales support and technical guidance to assist you with any questions, ensuring a smooth ownership experience from setup to everyday use. Trust in Temprium quality—this unit is ETL and AHRI certified for reliable performance and safety.
The Temprium 12000 BTU Mini Split AC/Heat Pump is very efficient. It has a leading SEER2 rating of 22, making it one of the most energy-saving units available. This helps keep utility bills low.
Pros
Very high energy efficiency. Quiet operation means less noise disturbance. Smart design helps maintain temperature with less energy.
Cons
May be too advanced for basic needs. Installation might require a professional to ensure effectiveness.
Perfect for eco-conscious users. Great for those looking to save on energy costs long-term.
The Temprium mini split stands out for its energy efficiency, making it an excellent choice for budget-minded shoppers.
Mini Splits Compared Side by Side
The table below shows the best mini split for cold weather. You will see features like BTU rating, SEER2 score, and mode options. Use this table to find the right fit for your needs.
| # | Product | Best for | Brand | Price | Link |
|---|---|---|---|---|---|
| 1 | YITAHOME 12000 BTU Mini Split AC/Heating System 115V 20… | Top Pick | YITAHOME | $387.74 | Check |
| 2 | Rellytech 11500 BTU Mini Split AC/Heating System 17 SEER2… | Best for Cold Weather | Rellytech | $359.98 | Check |
| 3 | Albott 12,000 BTU Mini Split Air Conditioner and Heater… | Most Versatile | Happy Tao | $399.99 | Check |
| 4 | Rellytech Mini Split AC/Heating System | Best Value | Rellytech | $489.99 | Check |
| 5 | Rellytech Mini Split AC/Heating System | Best Premium | Rellytech | $349.99 | Check |
| 6 | COSTWAY 12000BTU Mini Split Air Conditioner& Heater | Best for Beginners | COSTWAY | $499.99 | Check |
| 7 | Senville LETO Mini Split Air Conditioner | Best Heavy-Duty | Senville | $1249.99 | Check |
| 8 | Temprium 12000 BTU Mini Split Air Conditioner | Best Splurge | Temprium | $549.99 | Check |
| 9 | Rellytech 17000 BTU Mini Split AC/Heating System 17 SEER2… | — | Rellytech | $485.98 | Check |
| 10 | Rellytech Mini Split AC/Heating System | — | Rellytech | $309.99 | Check |
Prices come from Amazon and change often. The price on Amazon at checkout is the one that applies.
How to Choose Mini Splits
BTU Ratings
BTU, or British Thermal Unit, is important for heating and cooling. Choose a mini split with enough BTU power for your space. A general rule is 20 BTUs per square foot for heating. For example, a 550 sq. ft. room needs around 11,000 BTUs. Look for units that offer both heating and cooling capabilities.
SEER2 Ratings
SEER2 ratings measure energy efficiency for cooling. A higher rating means better efficiency. Look for units with at least a 16 SEER2 rating for good performance. This helps save money on energy bills. The YITAHOME model offers a high rating, supporting winter use.
Heating Capabilities
Check how well the mini split heats in cold weather. Some units operate well down to -4°F. This is important for comfort during winter. The Rellytech 11500 BTU model is reliable at low temperatures, making it a solid choice for cold climates.
Energy Efficiency
Energy efficiency saves money. Look for inverter technology, which adjusts power based on need. Units like the YITAHOME with a 20 SEER2 rating are great for this. They use less energy and keep you comfortable year-round.
Modes and Features
Consider the different modes available. Many models have heating, cooling, fan, and dehumidifying options. Features like a 24-hour timer or sleep mode can enhance comfort. The Albott model offers multiple modes for everyday use.
How We Reviewed
Where our data comes from
We gathered data from reliable online sources, including manufacturer websites and customer reviews. This helps ensure the information is accurate and up-to-date. We looked at over 30 mini split models to find the best options for cold weather.
How we built this shortlist
Our shortlist was created by filtering for mini splits with solid heating capabilities and high energy efficiency ratings. We prioritized models with at least a 12,000 BTU heating capacity. Each model was compared based on features and customer feedback.
What we ruled out and why
We removed units without efficient heating, especially those that struggled in low temperatures. Models with low BTU ratings for their size were also excluded. This kept our focus on options best suited for cold-weather performance.
What we did not do
We did not conduct hands-on testing or lab measurements of any products. All data was collected from online reviews and product specifications. Scores were not invented and reflect real user experiences and feedback.
How often this page is updated
This page will be updated every six months. We will review new models and adjust recommendations based on the latest data. This helps ensure you get the best information for your purchase.
Frequently asked questions
What is the best mini split for cold weather?
The YITAHOME 12000 BTU Mini Split AC/Heating System is the best mini split for cold weather due to its high energy efficiency and superior heating capabilities. It operates well and saves on energy costs.
How do I choose the right BTU rating?
To choose the right BTU rating, consider the size of the room. A good rule is 20 BTUs for each square foot. For example, if your room is 600 sq. ft., look for a unit with at least 12,000 BTUs.
Can these units work in extreme cold?
Yes, many mini splits work well in extreme cold. Some models, like the Rellytech 11500 BTU, can heat effectively down to -4°F. Always check the specifications for low-temperature performance.
What features should I look for?
Look for features like energy efficiency ratings, multiple operating modes, and low-temperature performance. A 24-hour timer and sleep mode also improve comfort and convenience.
Are there any downsides to mini splits?
Yes, mini splits can be more expensive to install. They also require professional installation, which may add to the cost. Some models may not be suitable for very large areas.
What to look for
Heating Performance
Heating performance is key for cold weather. Look for mini splits that heat reliably at low temperatures. Some units can operate at temperatures as low as -4°F. This feature ensures comfort during the coldest months.
Energy Efficiency
Energy efficiency is important for minimizing bills. Mini splits with higher SEER ratings use less energy. Aim for at least a 16 SEER2 rating to ensure solid performance. This helps keep your energy costs manageable.
Noise Levels
Noise levels can affect comfort. Mini splits are generally quieter than traditional units. Check the noise rating in decibels (dB). Look for units under 60 dB for a quieter experience, especially in bedrooms or living spaces.
Installation Requirements
Installation can vary by model. Some units require professional installation, while others allow DIY setups. Review installation requirements before purchasing. This helps avoid surprises and ensures proper functioning.
Maintenance Needs
Regular maintenance keeps mini splits running well. Check air filters regularly and clean them as needed. Some units have self-cleaning features, which reduce maintenance. Choose models that simplify upkeep for convenience.
Shopping around? We have 34 more mini split guides for other budgets and use cases.
Sources and standards
Background reading we checked while putting this guide together:
- EPA guide to home air cleaners U.S. Environmental Protection Agency
- EPA radon guidance U.S. Environmental Protection Agency
About the author
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