MRCOOL Easy Pro 12,000 BTU
Single-Zone DIY
$1,300

MRCOOL

MRCOOL Easy Pro 12,000 BTU

4.5(388 reviews)

We swapped this in for the Pioneer Diamante, which turned out not to be truly DIY — Pioneer's linesets aren't precharged or quick-connect, so it needs a vacuum pump like the Della. The Easy Pro (sold as 'EZ Pro' at Lowe's) is MRCOOL's answer to its own price problem: the same no-vacuum Fast Connect install as the DIY series for a few hundred dollars less, sold at Home Depot around $1,300 and frequently cheaper on sale. Owners rate the install and day-one performance nearly as highly as the DIY series — quiet, cold, easy app setup. What you give up is meaningful: 18 SEER2 instead of 22.5, heating rated only to 5°F instead of -13°F, a short fixed 16-ft lineset, and a dramatically weaker warranty (retailers list roughly 1-2 years versus the DIY line's 7-year compressor). Reddit's consensus is blunt: for a bedroom or office in a mild climate where the condenser sits right outside the wall, it's a bargain; for primary heat or a long lineset run, spend up for the real DIY series.

Price
$1,300
Size
12k BTU
SEER2
18
Best For
A single bedroom or office in a mild climate where the condenser sits directly outside and budget beats efficiency.

Specifications

SEER2 (cooling)
18
Capacity
12k BTU
Low-Ambient Heating
heats to 5°F
Zones
Single zone
Voltage
115V
WiFi Control
Built-in
Type
Single-Zone DIY
Coverage
~500 sq ft
Install
MRCOOL's budget DIY line keeps the important part — a precharged 16-ft lineset with Fast Connect fittings, no vacuum pump — and runs on a standard 115V dedicated circuit. The 16-ft lineset is fixed-length and can't be extended, so the condenser must sit close to the head; that's the main planning constraint versus the DIY series' 25-ft runs.
Warranty
Short limited warranty — retailer listings show roughly 1-year compressor / 2-year parts, far below the DIY series' 7/5
Model
EZPRO-12-HP-11516

Highlights

Cheapest MRCOOL with no-vacuum Fast Connect install115V — no new 240V circuitShort 16-ft fixed lineset

Pros

  • Precharged 16-ft Fast Connect lineset — true no-vacuum DIY install at MRCOOL's lowest price
  • 115V circuit requirement keeps electrical work minimal
  • 4.5-star average across 388 dealer reviews for the Easy Pro 12k
  • Same SmartHVAC app, Alexa, and Google control as the premium DIY series
  • Frequently discounted below $1,100 during Lowe's and Home Depot promos
  • Lighter head and condenser make it the easiest one-person MRCOOL install

Cons

  • Warranty is the catch: retailer listings show ~1-year compressor / 2-year parts versus 7/5 on the DIY series
  • 18 SEER2 and no published HSPF2 — noticeably less efficient than the DIY 12k
  • Heating rated only to 5°F, so it's not a cold-climate primary heat source
  • 16-ft lineset is fixed — can't be extended or swapped, which rules out many layouts
  • Not Energy Star certified, so it misses most utility rebate programs

Related mini-splits

More from MRCOOL
MRCOOL DIY 4th Gen 12,000 BTU
$1,700
Single-Zone DIY

This is the unit that made 'DIY mini-split' a real category, and the 4th Gen E-Star is the version most owners on r/hvacadvice actually have. The precharged quick-connect lineset genuinely works — most people report a half-day install with basic hand tools — and 115V power means no new 240V circuit for a garage or bonus room. Owners consistently praise how quiet it is and how well it holds temperature; the honest knocks are on longevity, not setup. The most common failure threads involve communication/control boards and, on earlier gens, slow condenser leaks a few years in; MRCOOL's warranty covers parts but owners report slow phone support and paying shipping on replacement parts. One more consideration: 4th Gen is R-410A and being cleared out for the R-454B 5th Gen, which is why prices swing so much (Costco and Home Depot deals have dipped well under list). If you can turn a wrench and read a torque spec, this is still the default answer.

Precharged 25-ft quick-connect linesetRuns on 115V — no 240V circuit neededHeats down to -13°F
12k BTUheats to -13°F
Best for: First-time DIYers conditioning a 400-500 sq ft garage, ADU, or bonus room off a standard 115V circuit.
View Details
MRCOOL DIY 4th Gen 18,000 BTU
$2,200
Single-Zone DIY

The 18k is the sweet spot in the DIY lineup for a big master suite, open basement, or 600-750 sq ft apartment, and it posts the best efficiency numbers of the whole 4th Gen range at 22.7 SEER2. Owners describe the install as identical to the 12k — the condenser is just heavier (two people for stairs) — and the recurring gotcha in reviews is electrical, not refrigerant: people assume it's plug-and-play and then discover they need a 240V circuit, disconnect box, and whip. Reliability chatter mirrors the rest of the DIY line: strong first-year impressions, quiet operation, solid -13°F heating, with the long-tail complaints centered on control boards and the occasional leaky quick-connect that MRCOOL diagnoses over email photos. Costco has run this size in the $1,300-1,500 range during clearance events, so patient shoppers can beat typical retail by hundreds. Register the warranty immediately — owners who skipped it got stuck at 1-year coverage.

Best-in-line 22.7 SEER2 efficiencyCovers up to 750 sq ftSame no-vacuum install as the 12k
18k BTUheats to -13°F
Best for: A master suite, large basement, or small apartment where 12k won't keep up but a multi-zone is overkill.
View Details
MRCOOL DIY 4th Gen 24,000 BTU
$2,500
Single-Zone DIY

The 2-ton is what people buy for a 1,000 sq ft shop, big open living area, or whole small home, and Home Depot reviewers repeatedly say some version of 'saved $3,000 doing it myself.' It delivers 23k BTU cooling / 25k heating with 20.5 SEER2 — a step down in efficiency from the 12k/18k but still Energy Star. Owner sentiment is the same trade as the rest of the line: install day goes shockingly well, and the risk shows up in years 2-4 as board or sensor failures for an unlucky minority. At this size the DIY premium gets real — you're paying roughly $800-1,000 over an equivalent pro-install unit — but a single pro install quote usually exceeds that gap. Watch freight shipping: the most common negative reviews are dented condensers and cracked air handler mounts on delivery, so photograph the pallet before signing. HD has run it near $2,900 while Ingram's sells it around $2,500, so shop around.

2-ton coverage up to ~1,000 sq ftReal Home Depot base: 4.3 stars, 200+ reviews25k BTU heating to -13°F
24k BTUheats to -13°F
Best for: A 900-1,100 sq ft shop, open-plan main floor, or small whole-home retrofit with a 230V circuit available.
View Details