MRCOOL Easy Pro 12,000 BTU vs MRCOOL Easy Pro 5th Gen 12,000 BTU
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Quick take: The MRCOOL Easy Pro 5th Gen 12,000 BTU replaced the MRCOOL Easy Pro 12,000 BTU, which is discontinued; the MRCOOL Easy Pro 5th Gen 12,000 BTU is the more efficient unit (19.5 SEER2).
| Spec | MRCOOL Easy Pro 12,000 BTU | MRCOOL Easy Pro 5th Gen 12,000 BTU |
|---|---|---|
| Price | $1,300 | $1,599 |
| Rating | 4.5★ (388) | — |
| Type | Single-Zone DIY | Single-Zone DIY |
| Capacity | 12k BTU | 12k BTU |
| Coverage | ~500 sq ft | ~500 sq ft |
| SEER2 (cooling) | 18 | 19.5 |
| HSPF2 (heating) | — | 9.3 |
| Low-Ambient Heating | to 5°F | to 5°F |
| Max heat at 5°F (NEEP) | not listed | 6,700 BTU |
| Heat kept at 5°F | — | 56% of rated |
| Refrigerant | — | R-454B |
| Zones | Single zone | Single zone |
| Voltage | 115V | 115V |
| WiFi Control | Built-in | Built-in |
| 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. | The main thing to plan is still the short precharged lineset. MRCOOL DIY Direct lists a 16-ft Quick Connect set, now charged with R-454B, and like any precharged set it can't be cut down or extended, so the condenser has to sit close to the head. It plugs into a dedicated 115V circuit, so you won't need a 240V run. No vacuum pump, no gauges. |
| Warranty | Short limited warranty — retailer listings show roughly 1-year compressor / 2-year parts, far below the DIY series' 7/5 | 1-year compressor / 2-year parts on registration per MRCOOL DIY Direct; one reseller lists 5-year compressor / 3-year parts, so confirm the terms before buying |
Pros & cons
MRCOOL Easy Pro 12,000 BTU
- ✓Precharged 16-ft Fast Connect lineset — true no-vacuum DIY install at MRCOOL's lowest price
- ✓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
- ✗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
MRCOOL Easy Pro 5th Gen 12,000 BTU
- ✓Runs on a dedicated 115V circuit, so you skip the 240V electrical work
- ✓Precharged R-454B Quick Connect lineset: no vacuum pump or gauges
- ✓Certified 19.5 SEER2 and 9.3 HSPF2, up from 18 SEER2 with no HSPF2 on the original
- ✓Same SmartHVAC app with Alexa and Google support as MRCOOL's pricier DIY line
- ✗MRCOOL DIY Direct lists only a 1-year compressor / 2-year parts warranty, against 7/5 on the DIY series
- ✗Heating stops at 5°F, and NEEP shows just 6,700 BTU/h at that temperature
- ✗Not Energy Star cold-climate certified, which rules it out of some heat-pump rebate programs
- ✗The short precharged lineset can't be extended, which limits where the condenser can go
- ✗About $300 more than the original Easy Pro usually sold for
- ✗Retailers disagree on both the warranty and the lineset length (16 ft vs 11.5 ft), so read the listing you're actually buying from

