Mini-Splits & Heat Pumps/DIY Mini-Splits (Pre-Charged)
DIY Mini-Splits (Pre-Charged) Reviews & Guides
DIY pre-charged mini-split reviews - MrCool and other quick-connect kits compared on install difficulty, line-set limits, cold-weather heat, reliability, and value.
← All reviews
← Indoor unit 31.57 in wide (12k) →SCORE5.2 / 10
MrCool
MrCool DIY Select Review: Why We'd Spend a Little More
17.5 SEER2 (12k) · 6,200 BTU/h at 5°F (12k) · 11.5 ft Quick Connect · 1 yr parts / 2 yr compressor
TroubleshootingMrCool Error Codes and What to Do
MrCool DIY 5th Gen error codes from the manual: EL 0C, EH C1, EL 01, PC 03 and more, what you can safely do, and when to call MRCOOL. (updated 2026)
Use-Case GuideDo You Need a Vacuum Pump for a Mini-Split? Quick-Connect vs Flare Installs
Quick-connect mini-splits skip the vacuum pump; flare units need one plus a micron gauge. What each manual requires, tool costs, hiring it out (updated 2026)
ComparisonA6.9 / 10B6.4 / 10
MrCool DIY 5th Gen vs Senville Leto: The Cheaper Box Needs a Contractor
“I installed a Mr cool DIY. If you do a search for them here you will find several posts with very positive reviews.”
ComparisonA6.9 / 10B7.1 / 10
MrCool DIY 5th Gen vs Pioneer Diamante Pro: It Comes Down to the Vacuum Pump
“I bought and installed a Mr. Cool DIY mini split, it was something like $4k, plus $600 for my electrician to wire it.”
ComparisonA6.9 / 10B5.8 / 10
MrCool DIY 5th Gen vs Easy Pro: The Line Set and the Warranty Decide It
“I am in Arizona and installed Mr.Cool DIY 5th Gen units which is produced in Midea factories.”
← Indoor unit 31.57 in wide (12k) →SCORE5.8 / 10
MrCool
MrCool Easy Pro Review: The 11.5 ft Line Set Decides It
19.5 SEER2 (12k) · 6,700 BTU/h at 5°F (12k) · 11.5 ft Quick Connect line set · 3 yr parts / 5 yr compressor
“Mr/Mrs cool were great to work with. Very responsive (via email).”
Buying GuideBest DIY Mini-Split (No Vacuum Pump Needed)
Which mini-splits install without a vacuum pump, which only look like they do, and when a flare unit plus a hired startup is the better buy. (updated 2026)
← Indoor unit 31.57 in wide (9k/12k) →SCORE6.9 / 10
MrCool
MrCool DIY 5th Gen Review: Who the No-Vacuum Premium Is For
23.5 SEER2 (12k) · 8,400 BTU/h at 5°F (12k) · Heats to -13°F · Quick Connect, no vacuum
“I DIY a 18k btu minisplit from Mr cool 2 years ago and the compressor just died this year.”