MrCool might be the most asked-about brand in our phone queue, and the question is almost never “is it any good?” It’s some version of “okay, which one?” The catalog has DIY, DIY Select, EasyPro, Hyper Heat, Advantage, Olympus, and the Universal, and from the product photos they all look like roughly the same white box. They are not the same box. Two of those lines shouldn’t be touched without a certified tech, one of them is built for winters that hit twenty below, and the price spread between the cheapest and the most capable 12,000 BTU system is wide enough to matter.
We stock the whole MrCool family at Buy Comfort Direct, so we get to see which lines go to which kinds of projects every single day. This guide is the explanation we give over the phone, written down.
Table of Contents
- The one question that sorts the whole lineup
- DIY 5th Gen: the flagship kit
- DIY Select: the budget version of the same idea
- EasyPro: the middle path
- Hyper Heat: the cold-climate DIY
- Advantage and Olympus: the pro-install lines
- Universal: MrCool for ducted homes
- A quick word on R-454B
- Our honest picks for 2026
The one question that sorts the whole lineup
Before you compare a single efficiency number, answer this: who is doing the install?
Every MrCool line falls on one side or the other. The DIY, DIY Select, EasyPro, and Hyper Heat lines ship with pre-charged Quick Connect line sets. The refrigerant is already sealed inside the line set at the factory, and the fittings thread together without flaring, vacuum pumps, or a gauge set. A reasonably handy homeowner with a drill, a level, and a free Saturday can put one in, and no EPA refrigerant certification is required because you never open the refrigerant circuit.
Advantage and Olympus are conventional mini splits. Flare connections, field-supplied line set work, evacuation with a vacuum pump, and a proper charge check. That’s a job for a licensed HVAC tech, same as a Daikin or any other pro-grade ductless system.
Neither side is “better.” The pre-charged kits buy you independence from the installer shortage; the pro lines buy you more flexibility on line lengths and configurations, usually at a lower equipment price for similar capacity. Decide who’s doing the work and half the catalog disappears from your shortlist.
DIY 5th Gen: the flagship kit
This is the line that made MrCool famous, now in its fifth generation. It’s the most capable of the self-install options and the one we recommend when the budget allows.
What you’re paying for, compared to the cheaper DIY options:
- Efficiency. The current 12k 115V system on our shelves is rated 23.5 SEER2. The 18k runs 22.5 SEER2. Those are genuinely high numbers for ductless, not just high for a DIY kit.
- More ways to mount it. The 5th Gen family isn’t limited to the wall-mount head everyone pictures. There are ceiling cassettes and slim ducted air handlers in the DIY ecosystem, which matters if you hate the look of a wall unit.
- Multi-zone. One outdoor unit can feed several rooms. If that’s the direction you’re headed, read our multi-zone mini split guide before you pick head sizes, because oversizing zones is the most common mistake we see.
- Smart control out of the box. Wi-Fi control through the app, plus voice assistant support, without buying an add-on kit.
- The longest warranty coverage of the DIY-install lines. Register the system after install and keep your paperwork; the coverage gap between this line and the budget kits is real, and it’s one of the quieter reasons the 5th Gen costs more.
We wrote a full MRCOOL DIY guide covering sizing and what the install day actually looks like, so we’ll leave the details there.
DIY Select: the budget version of the same idea
DIY Select (you’ll see “DIYS” in the model numbers) is MrCool’s answer to a fair complaint: the flagship DIY kit got expensive. Select keeps the part people actually want, the pre-charged Quick Connect install, and trims nearly everything else to hit a lower price.
The 12k Select on our site is rated 17.5 SEER2 against the standard DIY’s 23.5. It’s single-zone only, wall-mount only, and the included line set is shorter than what ships with the flagship kit, so measure the run from your outdoor pad to the indoor head before you order.
Who it’s for: the garage, the shop, the bonus room over the garage, the three-season porch. Spaces where you want real heating and cooling on a budget and the unit might run a few hundred hours a year instead of a few thousand. In that duty cycle, the efficiency gap barely shows up on a power bill. We put one of these in the same bucket as the projects covered in our garage mini split guide.
Who it’s not for: the main living space you condition all year. Run the math on annual hours and the flagship DIY usually earns its premium back.
EasyPro: the middle path
EasyPro (EZPRO in the model numbers) sits between Select and the flagship, and honestly it’s the line people most often haven’t heard of. Same pre-charged Quick Connect install. Single-zone, wall-mount. The 12k on our shelves is rated 19.5 SEER2 and the 18k hits 20 SEER2, so you’re getting a meaningful efficiency step up from Select without paying flagship money.
The trade-off hiding in the fine print is warranty length. EasyPro’s coverage terms are shorter than the flagship DIY line’s, by years, not months. For a bedroom or an office addition that’s a trade plenty of our customers make with eyes open. Just make it knowingly: pull up the warranty document on the product page before you buy, not after the compressor acts up in year six.
One habit worth copying from our contractor customers: whatever line you pick, photograph the data plate and your registration confirmation the day you install. Warranty claims go smoother when the paperwork exists.
Hyper Heat: the cold-climate DIY
A standard mini split heat pump loses capacity as the outdoor temperature falls, and the budget lines lose it fastest. If you’re in Georgia or the Carolinas, that’s a non-issue. If you’re trying to heat a space through a Minnesota or Vermont winter, it’s the whole ballgame.
The DIY Hyper Heat models (DIYHH) are built for exactly that. They use an enhanced low-ambient compressor setup and are rated to keep producing heat far below zero; MrCool publishes low-ambient ratings down to around −22°F on some sizes, so check the spec sheet for yours. You still get the pre-charged Quick Connect install, and efficiency stays strong, with the 12k rated 23.5 SEER2 and the 18k at 21.2.
If you’re deciding whether any air-source heat pump can carry your winter, our cold-climate heat pump guide walks through balance points and backup heat. The short version: in a genuinely cold climate, Hyper Heat is the only DIY-install MrCool we’d put our name behind as a primary heat source.
Advantage and Olympus: the pro-install lines
These two confuse people because they look like the DIY units and wear the same brand. They are not DIY products. No pre-charged line set, no Quick Connect fittings. A tech flares the connections, pulls a vacuum, and verifies the charge, which is normal procedure for every other mini split brand on the market.
Advantage is the value play of the pro lines. The 12k we carry is rated 21.3 SEER2 and the 18k comes in at 19.2. If you already have an installer you trust, an Advantage system often lands at a lower total equipment cost than a flagship DIY kit of the same size, because you’re not paying for the pre-charged convenience you don’t need.
Olympus is the premium ductless family. It’s where you’ll find the broadest spread of indoor unit styles, including ceiling cassettes and concealed ducted air handlers, plus ENERGY STAR configurations in the lineup. Contractors quoting against Daikin or Mitsubishi ductless will often spec Olympus as the sharp-pencil alternative. If you’re weighing it against the Daikin systems we carry, our Daikin mini split guide makes a useful second tab to have open, and you can browse both brands at our Daikin page.
A note for the pros reading this: we stock the matching line sets, pads, covers, and electrical in Parts & Supplies, so the whole job can ship on one order.
Universal: MrCool for ducted homes
The Universal series is the odd one out because it isn’t ductless at all. It’s a central, ducted heat pump that connects to your existing ductwork like any conventional split system, except the line set uses MrCool’s pre-charged Quick Connect design. Think of it as the DIY idea applied to whole-house central heating and air.
It deserves its own article, and it has one: our MrCool Universal guide covers the air handler options, heat strips, and what the install involves. Mentioning it here mostly so you know it exists; if your house has ducts and you were about to buy four wall units, stop and read that first.
A quick word on R-454B
The industry finished its move away from R-410A, and MrCool’s current-generation equipment, including the 5th Gen DIY, Select, and Hyper Heat systems, ships with R-454B. For a pre-charged DIY kit this changes almost nothing about your install day. The refrigerant is sealed in the line set either way, and the Quick Connect procedure is the same.
Where it does matter is mixing old and new. A 5th Gen R-454B condenser is not a drop-in partner for an older R-410A head or line set, so if you’re replacing half of an aging system, plan on replacing the whole thing. We covered the transition in detail in our refrigerant change guide.
Our honest picks for 2026
Conditioned space you live in every day, installing it yourself: DIY 5th Gen. The efficiency and the longer warranty are worth it on a system that runs year-round.
Garage, shop, or bonus room on a budget: DIY Select. Low hours of use make the efficiency gap mostly academic.
Somewhere in between, and you read warranty documents: EasyPro. A real step up from Select for less than flagship money.
Winters that go below zero: Hyper Heat, full stop. Nothing else in the DIY-install group is built for it.
You have an installer lined up: Advantage for value, Olympus for premium configurations and the widest choice of indoor units.
Your house already has ducts: Universal, or at least read the Universal guide before buying multiple ductless heads.
Whichever direction you lean, size it before you buy it. An oversized mini split short cycles and dehumidifies poorly, and no efficiency rating survives bad sizing. Our free HVAC sizing tool takes about two minutes, and if the result surprises you, call us at (877) 843-4822 or email Info@BuyComfortDirect.com and a real person in Winder, Georgia will talk it through with you.
Every MrCool system we sell ships free on orders over $99, 0% APR financing is available through Affirm for qualified buyers, and our price match guarantee applies across the lineup. There’s usually an open-box MrCool or two in Clearance as well, worth a look before you pay full freight.