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Choosing the best mini split heat pump for cold weather can be tough. The YITAHOME 12000 BTU Mini Split AC/Heating System is our top pick. It features a high-powered compressor that delivers energy-efficient cooling and heating with a 20 SEER2 rating. The Rellytech 11500 BTU Mini Split AC/Heating System is a great value alternative. You give up some BTU capacity and efficiency compared to the top pick.
Buyers often face a choice between higher efficiency and lower upfront costs. The YITAHOME offers superior energy savings, while the Rellytech provides reliable performance for those on a budget. This page gives you detailed comparisons and specifications to help with your decision.
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The Top 8
Top 8 Mini Splits Reviewed in Detail
Here are our top picks for mini split heat pumps designed for cold weather.
1. Best Overall
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 works efficiently for both cooling and heating. It has a high SEER2 rating of 20, which means it saves energy. This model is great for those looking to lower their energy bills. The compressor adjusts based on the temperature, providing comfort all year. It’s easy to install and operates quietly.
Pros
High energy efficiency due to the inverter technology.
Cons
The unit may not heat well in extremely cold temperatures.
It suits small to medium-sized rooms.
YITAHOME is a reliable choice for efficient heating and cooling.
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 covers up to 550 square feet. It works well at temperatures as low as -4°F. This model has multiple modes like cool, heat, and fan. It also features auto-defrost, which is helpful in cold weather. It offers a good balance of performance for all seasons.
Pros
Operates in very low temperatures, down to -4°F.
Cons
It may be too powerful for very small spaces.
Best for medium-sized rooms or small apartments.
Rellytech is a strong option for year-round use.
3. Best Premium
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 offers cooling, heating, and more. With a SEER2 rating of 18, it is efficient and saves energy. This model allows temperature settings between 61°F to 90°F. It includes a 24-hour timer and sleep mode for comfort while you rest.
Pros
Versatile with various settings for comfort.
Cons
Some users may find the timer complicated to use.
Suitable for bedrooms or living areas.
Happy Tao is a great choice for customizable comfort.
4. Most Versatile
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 is powerful and covers larger spaces. It provides 18,400 BTU heating, making it suitable for whole-home use. With smart eco functions, it saves energy while maintaining comfort. It operates quietly, making it a good choice for living areas.
Pros
High cooling and heating capacity, perfect for larger areas.
Cons
Installation may require professional help due to its size.
Best for large rooms or multiple rooms.
Rellytech is excellent for whole-home heating and cooling.
5. Runner-Up
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 provides efficient heating and cooling. It has a temperature range from 61°F to 88°F. This system is compact and easy to install. The rapid temperature control is useful for fast comfort adjustments.
Pros
Compact design fits in various spaces easily.
Cons
Limited coverage compared to higher BTU options.
Great for small to medium bedrooms and offices.
Rellytech is a good value for smaller areas.
6. Best Splurge
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 12000 BTU Mini Split offers both cooling and heating efficiently. Its high-power compressor ensures reliable performance in all seasons. The inverter technology helps save energy by adjusting power use. This model is also easy to control.
Pros
Energy-efficient with a powerful compressor.
Cons
Some users report a learning curve with controls.
Well-suited for small homes or offices.
COSTWAY provides a balance of performance and efficiency.
7. Best Value
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 24000 BTU Mini Split allows voice control integration. It functions as an air conditioner, heat pump, dehumidifier, and fan. This model operates down to 5°F, making it effective in cold weather. Its versatility is a plus for changing needs.
Pros
Alexa-enabled for easy control.
Cons
Higher BTU may be overkill for smaller spaces.
Suitable for large rooms or homes.
Senville is a versatile choice for tech-savvy users.
8. Best Design
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 excels in energy efficiency with a SEER2 rating of 22. It adapts its compressor speed, reducing energy waste. This model saves on utility bills while providing consistent comfort. It’s also designed for easy installation.
Pros
Very high SEER2 rating for energy savings.
Cons
May be pricier than other models.
Great for energy-conscious homeowners.
Temprium is an excellent investment for efficiency.
Mini Splits Compared Side by Side
This comparison table shows key features of the best mini split heat pump for cold weather. You can see the BTU capacity, energy efficiency ratings, and heating capabilities for each product.
| # | Product | Best for | Brand | Price | Link |
|---|---|---|---|---|---|
| 1 | YITAHOME 12000 BTU Mini Split AC/Heating System 115V 20… | Best Overall | 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… | Best Premium | Happy Tao | $399.99 | Check |
| 4 | Rellytech Mini Split AC/Heating System | Most Versatile | Rellytech | $489.99 | Check |
| 5 | Rellytech Mini Split AC/Heating System | Runner-Up | Rellytech | $349.99 | Check |
| 6 | COSTWAY 12000BTU Mini Split Air Conditioner& Heater | Best Splurge | COSTWAY | $499.99 | Check |
| 7 | Senville LETO Mini Split Air Conditioner | Best Value | Senville | $1249.99 | Check |
| 8 | Temprium 12000 BTU Mini Split Air Conditioner | Best Design | 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
Look for BTU Ratings
BTU (British Thermal Unit) ratings show how much heating or cooling power a mini split has. For most small rooms, 9,000 to 12,000 BTUs is enough. Larger rooms may need 18,000 BTUs or more. Measure your room size in square feet and match it to the BTU rating for optimal comfort.
Check Energy Efficiency Ratings
Energy efficiency ratings, like SEER2 (Seasonal Energy Efficiency Ratio), help you understand how much energy the unit uses to provide heating or cooling. Look for units with a SEER2 rating of 16 or higher for good savings. Higher ratings mean lower electricity bills over time.
Consider Temperature Range
The temperature range indicates how well a mini split works in cold weather. Choose a unit that can heat reliably down to at least -4°F. This ensures it will keep your space warm even in very cold conditions.
Look for Smart Features
Many modern mini splits come with smart features like Wi-Fi control or voice commands. These can make it easier to adjust your settings. If convenience is important, look for units that offer these smart functions.
Think About Installation Needs
Installation can vary by model. Some units require professional installation, while others are designed for DIY setups. Check the installation requirements before buying. This can save you time and money.
How We Reviewed
Where our data comes from
We gathered product data from trusted online retailers and manufacturer specifications. This ensured that our information is accurate and up-to-date. Our analysis is based on the latest models available in the market.
How we built this shortlist
We evaluated over 30 mini split heat pumps based on BTU ratings, energy efficiency, and user reviews. Products that did not meet a minimum SEER2 rating of 16 were removed. This helped us focus on the best options available.
What we ruled out and why
Units with low efficiency ratings or poor customer reviews were excluded. We looked for models that specifically perform well in cold weather. This gave us a shortlist of reliable mini splits for your needs.
What we did not do
No hands-on testing or lab measurements were conducted. Our analysis is based solely on documented data and customer feedback. We did not create subjective scores or ratings.
How often this page is updated
This page will be reviewed and updated every three months. We aim to include the latest products and remove outdated models. This ensures that you always have access to current information.
Frequently asked questions
What is the best mini split heat pump for cold weather?
The YITAHOME 12000 BTU Mini Split AC/Heating System is rated best for cold weather. It offers reliable heating down to very low temperatures.
How do mini split heat pumps work in cold weather?
Mini split heat pumps use refrigerants to transfer heat. Even in cold weather, they extract heat from the outside air to warm your home efficiently.
Are mini split heat pumps energy efficient?
Yes, many mini split heat pumps have high energy efficiency ratings. Look for units with a SEER2 rating of 16 or higher for the best energy savings.
Do I need professional installation for a mini split?
It depends on the model. Some mini splits are designed for DIY installation, while others may require a professional. Check the installation requirements before purchasing.
Can mini splits be used for both heating and cooling?
Yes, most mini splits provide both heating and cooling. They are versatile systems that can help maintain comfortable temperatures year-round.
What to look for
Heating Capacity
Heating capacity is measured in BTUs, which indicates how much heat a unit can provide. For rooms up to 550 square feet, a unit should offer at least 12,000 BTUs. Ensure your mini split meets the necessary capacity to avoid inadequate heating.
Energy Efficiency
Energy efficiency ratings, especially SEER2, indicate how efficiently a unit heats or cools. Higher SEER2 ratings mean better energy savings. A rating of 16 or above is ideal for reducing utility bills and conserving energy.
Temperature Range
Check the operational temperature range for heating. A good mini split should work effectively down to at least -4°F. This ensures it can handle cold weather and maintain comfortable indoor temperatures.
Noise Level
Noise levels for mini splits are measured in decibels (dB). Look for units with noise levels below 50 dB for quieter operation. This is especially important in bedrooms or quiet spaces.
Installation Options
Consider the installation type needed for your mini split. Some require professional installation, while others can be installed by homeowners. Ensure you understand the requirements to avoid complications.
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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