What's in this package
Every piece below is included in your system price — matched to optimize efficiency, power and compatibility. Tap a piece to see its full description, specs and manuals.
The MRCOOL® OLYMPUS E-STAR® 12k Series condenser provides dependable heating and cooling for spaces up to 550 square feet, making it perfect for bedrooms, home offices, garages, and other smaller areas. Its compact design ensures a hassle-free installation, even in tight or unconventional spaces. With Wi-Fi capability and the MRCOOL® Smart HVAC app, you can conveniently adjust the system's temperature, fan speed, and settings from your smartphone or tablet, giving you full control no matter where you are. Prefer a more hands-on approach? The included remote control offers easy access to all the essential features. Optimized for energy efficiency, the unit boasts impressive SEER2 and EER2 ratings of 25.5 and 13, respectively, along with a HSPF2-4 rating of 10.6, allowing you to reduce energy costs while enjoying ideal comfort. The outdoor fan operates at a quiet 56 dB, ensuring a peaceful environment without compromising performance.
The unit uses R-454B refrigerant, an eco-friendly solution that provides top-tier performance while being environmentally responsible. For added convenience, the system is compatible with voice control through Amazon Alexa and Google Assistant, allowing for hands-free operation. The MRCOOL® OLYMPUS E-STAR® 12k Series also comes with a limited lifetime warranty, 7-year compressor coverage, and a 5-year parts warranty, ensuring long-term reliability, cutting-edge technology, and peace of mind.
Features
- Installation by a licensed professional required where applicable 7-Year Compresser, 5-Year Parts warranty when registered and installed by a licensed professional R-454B environmentally friendly friendly refrigerant Energy Star Certified
Works With
- O-12-HP-WMAH-230C-O
- DUCT-12HP-230B-O
- CASSETTE12HP-230C-O
- Net Dimensions (In)
- 12.99 D x 21.81 H x 31.69 W
- Net Weight (Lbs)
- 72.75
- Gross Depth (In)
- 14.57
- Gross Height (In)
- 24.21
- Gross Width (In)
- 36.02
- Gross Weight (Lbs)
- 78.7
- Color
- White
- Max Coverage Area
- Up to 550
- Inverter
- DC
- Metering Device
- EXV
- SEER2
- Up to 25.4
- EER2
- Up to 13.4
- HSPF2-4
- 10.5
- HSPF2-5
- 8
- Tonnage
- 1
- Cooling Capacity (Btu)
- 12000
- Heating Capacity (Btu)
- 12000
- Cycle
- 60
- Compressor Motor Type
- Rotary
- Condenser Fan Motor Rpm
- 780/680/580
- Decibel Rating (Dba)
- 56
- Voltage (V)
- 208/230
- Phase
- 1
- Max Fuse Breaker (A)
- 15
- Min Circuit Ampacity (A)
- 15
- Refrigerant Type
- R-454B
- Refrigerant Volume (Oz)
- 35.27
- Max Lineset Length (Ft)
- 82
- Lineset Fitting Type
- Flare
- Liquid Line Size
- 1/4
- Suction Line Size
- 3/8
- UL Listed
- Yes
- CSA Listed
- Yes
- ETL Listed
- Yes
- Energy Star Certified
- Yes
- AHRI Certified
- Yes
- Has Batteries
- Yes
- Contains Electronics
- Yes
- Contains Chemicals
- Yes
- Contains Compressed Gas
- Yes
- Proposition 65 Warning
- Yes
- Restricted States
- GU, PR, VI
- Base Warranty
- 5-Year Parts/7-Year Compressor
- Base Parts Warranty
- 5-Year
- Base Compressor Warranty
- 7-Year
- Base Remote Warranty
- 5 Year
- Registered Labor Warranty
- None
- Base Labor Warranty
- None
Experience dependable heating and cooling with the MRCOOL® OLYMPUS ESTAR® 12k Series air handler, designed for spaces up to 550 square feet—perfect for bedrooms, home offices, garages, and more. Its compact design makes installation quick and hassle-free for your technician.
Stay in control from anywhere with the MRCOOL® Smart HVAC app, which connects via Wi-Fi to your smartphone or tablet. Prefer a more hands-on approach? Use the included remote control for simple and convenient operation. Engineered for energy efficiency, this unit delivers strong performance with a SEER2 rating of 25.5, EER2 of 13, and HSPF2-4 of 10.6—helping you reduce energy consumption and save on utility costs.
A variety of indoor fan speeds ensures optimal comfort, while its whisper-quiet operation at just 46 dB keeps noise to a minimum. Now using R-454B refrigerant, an environmentally friendly option, this system supports a greener future without compromising performance. Enjoy multiple control options, including wireless remote access, the smartHVAC app, and voice control compatibility with Amazon Alexa and Google Assistant—giving you the flexibility to adjust your comfort your way.
Backed by an industry-leading warranty, including a limited lifetime warranty, 7-year compressor coverage, and a 5-year parts warranty, the MRCOOL® OLYMPUS ESTAR® 12k Series offers advanced features, quiet operation, and year-round comfort you can count on.
Works With
- O-ES-12-HP-C-230C-O1
- MULTI3-18HP230C-O
- MULTI4-27HP230C-O
- MULTI5-36HP230C-O
- MULTI6-48HP230C-O
- Net Dimensions (In)
- 9.09 D x 11.81 H x 33.74 W
- Net Weight (Lbs)
- 22.93
- Gross Depth (In)
- 12.2
- Gross Height (In)
- 14.57
- Gross Width (In)
- 36.22
- Gross Weight (Lbs)
- 29.32
- Mount Type
- Wall
- Color
- White
- Max Coverage Area
- Up to 550
- Number Of Speeds
- 5 (Variable)
- Oscillation
- Yes
- Tonnage
- 1
- Cycle
- 60
- Blower Motor Speeds
- 441.4/323.7/229.6/176.6/147.2
- Blower Motor Rpm
- 1100/850/700
- Decibel Rating (Dba)
- 47/36.5/32.5/22/19.5
- Decibel Rating Low (Dba)
- 19.5
- Decibel Rating High (Dba)
- 47
- Voltage (V)
- 208/230
- Phase
- 1
- Max Fuse Breaker (A)
- 15
- Min Circuit Ampacity (A)
- 3
- Refrigerant Type
- R-454B
- Lineset Fitting Type
- Flare
- Liquid Line Size
- 1/4
- Suction Line Size
- 3/8
- Filter Type
- Reusable
- Auxiliary Heater Included
- No
- Auxiliary Heater Available
- No
- Fan Only Option
- Yes
- Sleep Mode
- Yes
- Auto Cool
- Yes
- Wifi Compatibility
- Yes
- App Compatibility
- Yes
- Works With Ios
- Yes
- Works With Android
- Yes
- Remote Control Included
- Yes
- UL Listed
- Yes
- CSA Listed
- Yes
- ETL Listed
- Yes
- Has Batteries
- Yes
- Contains Electronics
- Yes
- Contains Chemicals
- Yes
- Contains Compressed Gas
- Yes
- Proposition 65 Warning
- Yes
- Restricted States
- GU, PR, VI
- Base Warranty
- 5-Year Parts
- Base Parts Warranty
- 5-Year
- Base Remote Warranty
- 5 Year
- Registered Labor Warranty
- None
- Base Labor Warranty
- None
MRCOOL Mini Split BTU Guide
Drawn to scale — 1 square = 2 × 2 ft
Customer Reviews
I needed to replace another unit that a previous contractor didn't do any part of that installation correctly, and the condensation line was leaking inside the house, running down the wall since that installation!! The indoor coil was 1-1/2" out of level, the line set wasn't wrapped, the electrical was tapped into the same circuit as the garage light and outlets...it was a mess.
It took me more time to demo the old unit out than to install the one I bought from you.
Thank you.
Very pleased with the price, delivery, ease of installation, and above all during this heatwave it is working excellently.
I ordered a 2 zone unit for the bedrooms in our home. It took a few months to arrive (manufacturer issue, nothing to do with HOD, and we were contacted on more than one occasion with an order update which was much appreciated!), but when it did arrive was very easy to install. Both the heat and AC function work perfectly, and our family is very happy!
I ordered a HVAC system and it arrived in a timely manner and with no apparent issues. I thought the system was defective once installed but it was the installers fault who wired it wrong. My only issue would be the fee (30% I believe) to return a defective item within the 30 day return policy. If it is defective the customer shouldn't have to pay a fee to return an item that is not operating as designed. Other than that this is a good company.
Installed my own central HP system. It was a bit of work but nothing beyond a person with basic mechanical and electrical skills. It took me a while because I had to remove the existing electric forced air furnace from a pretty tight place. Some custom sheet metal work and a bit of custom electrical too. Worked perfectly when powered up and I actually like the thermostat provided, although I wish it was clearer how to set up a temperature set-back schedule. Pre-charged refrigerant piping was something new and I liked that too. The best thing is that my electric utility forked out $4,000 and that paid for the unit!
