Best DIY Ductless Mini Split Systems for Home Installation

For buyers wanting to install a ductless mini split themselves, these models offer DIY-friendly features, pre-charged kits, or straightforward wall-mount systems. Choose MRCOOL 12000 if you want a proven DIY Easy Pro option for medium rooms, YITAHOME 12000 if you want WiFi and broad 750 sq. ft. coverage, Temprium 12000 if energy efficiency and very low noise matter, Albott 12000 for balanced all-season performance and simple controls, and MRCOOL 9000 for small rooms or garages. The table below summarizes each pick and who it’s best for.

Product Best For
YITAHOME 12000 BTU Mini Split Buyers who want WiFi/Alexa and larger coverage (up to 750 sq. ft.)
MRCOOL 12000 BTU Easy Pro DIY installers wanting a streamlined install for medium rooms (~550 sq. ft.)
Temprium 12000 BTU Energy-conscious buyers seeking high SEER2 and ultra-quiet operation
Albott 12000 BTU Buyers who want simple controls and reliable year-round operation up to 750 sq. ft.
MRCOOL 9000 BTU Easy Pro DIY installers for smaller rooms up to 400 sq. ft.

YITAHOME 12000 BTU Mini Split Air Conditioner Heat Pump System

YITAHOME 12000 BTU Mini Split

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Features listed include a high-power compressor with inverter technology, 20 SEER2 efficiency, coverage up to 750 sq. ft., ETL and AHRI certifications, five operating modes (auto/cool/dry/heat/fan), WiFi and Alexa compatibility, automatic defrost/self-diagnosis, iFEEL mode, 24-hour timer, sleep and energy-saving modes, a “HEALTH” mode for airborne particles, and quiet operation below 41 dB.

Best for homeowners who want smart controls and larger-area coverage. Selected because it combines multiple modes, certification claims, and WiFi/Alexa compatibility with an included installation kit for easier DIY installs.

Choose this if you need built-in smart home integration and coverage up to about 750 sq. ft. Avoid this if you require a unit rated for very small rooms only, since its capacity targets larger spaces.

Caution: The listed noise level is under 41 dB, but actual in-room noise depends on mounting location and room acoustics.

MRCOOL 12000 BTU 115V Ductless Inverter Mini Split Easy Pro

MRCOOL 12000 BTU Mini Split

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Features listed include 12,000 BTU capacity, heating and cooling for up to ~550 sq. ft., energy-efficient inverter design, quiet operation, and streamlined DIY installation to reduce mess and cost.

Best for DIY installers seeking a purpose-built Easy Pro option for medium-size rooms. Selected because the product specifically markets an easier installation process intended for homeowner installation without specialized brazing.

Choose this if you want a balance of DIY-friendly installation and medium-room capacity. Avoid this if your space exceeds the listed coverage or if you need very high heating capacity in cold climates.

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Caution: Coverage is listed near 550 sq. ft.; confirm room layout and insulation before choosing this capacity.

Temprium 12000 BTU Mini Split Air Conditioner 115V

Temprium 12000 BTU Mini Split

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Features include 22 SEER2 efficiency, R32 refrigerant, 12,000 BTU cooling and 12,300 BTU heating, coverage for up to 750 sq. ft., DC inverter compressor, quiet operation down to 23 dB, and reliable performance across a wide temperature range (cooling to 122°F, heating to 5°F) per the listing.

Best for buyers prioritizing energy efficiency and low noise. Selected for its high SEER2 rating and stated ultra-quiet operation, which can lower operating cost and improve comfort in bedrooms or offices.

Choose this if low running noise and higher SEER2 are top priorities. Avoid this if you need a simpler, lower-cost unit without advanced inverter control.

Caution: The claim of 23 dB is a low value; room placement and wall mounting will influence perceived noise.

Albott Mini Split Air Conditioner and Heater 12,000 BTU

Albott 12000 BTU Mini Split

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Features listed are SEER2 18 efficiency, inverter heat pump, cooling/heating/dehumidifying/fan modes, 61°F–90°F temperature settings, 24-hour timer, sleep mode, remote and app control, self-cleaning, and operation in conditions from 5°F to 122°F covering up to 750 sq. ft.

Best for buyers who want straightforward all-season performance and app control without very high SEER2 complexity. Selected for its range of modes, self-cleaning claim, and broad operating temperature range suitable for year-round use.

Choose this if you want a versatile unit that covers multiple modes and simple app/remote control. Avoid this if you need the absolute highest SEER2 efficiency available.

Caution: Self-cleaning features can reduce maintenance but do not replace regular filter checks and routine servicing.

MRCOOL 9000 BTU 115V Ductless Inverter Mini Split Easy Pro

MRCOOL 9000 BTU Mini Split

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Features listed include 9,000 BTU capacity, heating and cooling for up to ~400 sq. ft., energy-efficient inverter operation, quiet performance, and Easy Pro design intended to simplify DIY installation and reduce installation costs.

Best for DIY installers working on small rooms, bedrooms, or home offices. Selected because the lower-capacity Easy Pro model is suitable where smaller BTU is appropriate and where pre-charged or simplified installation reduces complexity.

Choose this if your room is under about 400 sq. ft. and you want a straightforward DIY install. Avoid this if you need to heat or cool larger open-plan spaces.

Caution: A 9,000 BTU unit is not intended for large or poorly insulated spaces; sizing to room characteristics is important.

Buying Guide

How Do I Choose The Right BTU Size?

Match BTU capacity to the room size and use. Product listings give approximate coverage (for example, 9,000 BTU for ~400 sq. ft., 12,000 BTU for ~550–750 sq. ft.). Choose a higher capacity for open layouts, high ceilings, or poor insulation. Choose a lower capacity for small, well-insulated rooms.

What Electrical Requirements Should I Check?

Confirm voltage and circuit requirements in the product specs. Many DIY-friendly models use 115V and can plug into standard circuits; larger units may require 208–230V and a dedicated circuit. Verify maximum fuse/breaker size and whether a dedicated circuit is needed before installation.

Which Features Make Installation Easier For DIYers?

  • Pre-charged line sets that avoid brazing or refrigerant charging.
  • Included installation kit with mounting bracket, line set and wall sleeve.
  • Clear manufacturer instructions and online support resources.
  • 115V power options that work with existing household wiring.

How Important Is SEER2 And Refrigerant Type?

SEER2 indicates seasonal efficiency; higher SEER2 can reduce operating costs. R32 refrigerant has lower global warming potential than older refrigerants; check listings if refrigerant type or efficiency is a priority.

What About Noise, Controls, And Smart Features?

Noise levels are listed for several models; lower dB ratings benefit bedrooms and home offices. Decide if WiFi, app control, or voice assistant compatibility (Alexa) is important for remote operation or automation.

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When Should I Hire A Professional?

Hire a professional if the install requires electrical panel changes, 230V wiring, wall cutting beyond included kits, long line-set runs beyond pre-charged lengths, or if local codes require licensed HVAC work. For simple installs with pre-charged kits and standard 115V wiring, many models are marketed for DIY installation.

FAQ

Can I install a ductless mini split myself?
Many models are marketed for DIY installation and include pre-charged line sets or installation kits. Check the product’s installation instructions and your local code requirements before attempting a DIY install.

How do I size a mini split for my room?
Use the manufacturer’s coverage guidance (BTU vs. square footage) and factor in room height, insulation, sun exposure, and open-plan layouts. When in doubt, choose a slightly higher capacity for poorly insulated or sunny rooms.

Do DIY mini splits require special tools or refrigerant handling?
Some DIY models include pre-charged line sets and require only basic tools for mounting and electrical hookup. Models that need refrigerant charging or brazing typically require professional HVAC equipment and certification.

Are smart features like WiFi and Alexa useful?
Smart features enable remote control, scheduling, and voice control. They are useful if you want automated schedules or integration with existing smart home systems; otherwise basic remote control is typically adequate.

What maintenance is required after installation?
Regular tasks include cleaning or replacing filters, checking condensate drain lines, and periodic visual inspection of indoor and outdoor units. Follow the manufacturer’s maintenance recommendations in the product manual.

Will a mini split heat in cold climates?
Many listed units are heat pumps and specify heating performance down to a particular outdoor temperature (for example, 5°F). Check the product’s rated low-temperature heating capability before choosing for cold-climate use.

How to Get the Best HVAC Prices

  • Firstly, keep in mind that installation quality is always the most important thing for residential HVAC project. So never sacrifice contractor quality for a lower price.
  • Secondly, remember to look up the latest rebates as we talked above.
  • Thirdly, ask for at least 3 bids before you make the decision. You can click here to get 3 free estimates from your local contractors, and this estimate already takes rebates and tax credit into consideration and filter unqualified contractors automatically.

Lastly, once you chose the right contractor, remember to use the tactics from this guide: Homeowners Tactics When Negotiating with HVAC Dealer to get the final best price.

Written by

Rene has worked 10 years in the HVAC field and now is the Senior Comfort Specialist for PICKHVAC. He holds an HVAC associate degree and EPA & R-410A Certifications.
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