SKU: 85755445904

MRCOOL DIY 5th Gen E-Star Series 18K BTU, 1.5 Ton, 21.5 SEER2 Ductless Mini-Split Heat Pump System with Ceiling Cassette Air Handler – R-454B

$1534.50 $1705.00
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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22

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Description

MRCOOL DIY 5th Gen E-Star Series 18K BTU, 1.5 Ton, 21.5 SEER2 Ductless Mini-Split Heat Pump System with Ceiling Cassette Air Handler – R-454BMRCOOL DIY 5th Gen E Star Series 18K BTU, 1. 5 Ton, 21. 5 SEER2 Ductless Mini Split Heat Pump System with Ceiling Cassette Air Handler R 454B The MRCOOL DIY 5th Gen E Star Series 18K BTU Mini Split Heat Pump System delivers next generation efficiency, low environmental impact, and true do it yourself installation. This single zone package features a premium ceiling cassette air handler for discreet comfort, providing powerful heating and cooling

MRCOOL DIY 5th Gen E-Star Series 18K BTU, 1.5 Ton, 21.5 SEER2 Ductless Mini-Split Heat Pump System with Ceiling Cassette Air Handler – R-454B

The MRCOOL DIY 5th Gen E-Star Series 18K BTU Mini-Split Heat Pump System delivers next-generation efficiency, low environmental impact, and true do-it-yourself installation. This single-zone package features a premium ceiling cassette air handler for discreet comfort, providing powerful heating and cooling performance without compromising aesthetics.

Unlike traditional wall-mounted units, the MRCOOL ceiling cassette fits neatly between standard 16” ceiling joists, making it the perfect low-profile solution for modern homes and office spaces. This system uses MRCOOL’s latest R-454B refrigerant, offering a lower Global Warming Potential (GWP) and compliance with updated refrigerant regulations.

💡 What’s Included in This Bundle?

✔ MRCOOL DIY 5th Gen 18K BTU, 1.5 Ton, 21.5 SEER2 Heat Pump Condenser
(Model: DIY-18-HP-C-230C)

✔ MRCOOL DIY 5th Gen 18K BTU Ceiling Cassette Air Handler
(Model: DIYCASSETTE18HP-230C25)

✔ Standard 25 Ft. MRCOOL Pre-Charged Quick Connect Line Set – R-454B
(No vacuum or special tools required)

💬 Need a longer line set?
This system comes standard with a 25' pre-charged line set. You can upgrade to a 35' continuous line set with matching control wire for installations requiring a bit more reach without added connections.

For even greater flexibility, extended configurations are also available in 41', 50', or 75' total line lengths. These setups use the included 25' pre-charged line set paired with an additional pre-charged line set connected via MRCOOL Quick Connect® couplers, along with a longer control wire.

This sectional or continuous approach provides easy installation options for every scenario—from simple straight runs to complex or tight routing—while maintaining MRCOOL’s leak-proof reliability and DIY simplicity.

🌡️ MRCOOL 5th Gen Heat Pump Condenser – Key Features

  • 18,000 BTU Output – Ideal for heating & cooling single-zone spaces up to ~750–800 sq ft

  • 21.5 SEER2 High Efficiency – Lower utility costs without sacrificing performance

  • Pre-Charged with R-454B Refrigerant – Eco-friendly, low-GWP refrigerant

  • Gold Fin Condenser Coating – Corrosion-resistant for long outdoor life

  • Cold Weather Ready – Operates in temperatures down to 5°F

  • True DIY Installation – Quick Connect fittings, no vacuum pump needed

  • Warranty – 7-Year Compressor / 5-Year Parts (Lifetime Limited Compressor with registration)

🔲 MRCOOL Ceiling Cassette Air Handler – 18K BTU

  • Flush Ceiling Installation – Fits between 16” joists for a seamless appearance

  • Multiple Comfort Modes – FAN ONLY, QUIET, SLEEP, AUTO for complete control

  • Elevating Air Filter System – Drops up to 4.9 ft for easy, tool-free cleaning

  • Unified Aesthetic – Matches MRCOOL multi-zone cassette design

  • Smart Home Ready – Wi-Fi enabled, works with Alexa & Google Assistant

  • Expandable Design – Visually matches multi-zone setups for future expansion

🔧 Why Choose MRCOOL DIY 5th Gen?

  • No HVAC License Required – Perfect for homeowners & skilled DIYers

  • R-454B Refrigerant Compliant – Ready for new HVAC regulations

  • Pre-Charged Line Sets – No refrigerant handling or vacuuming

  • Energy Efficient – Meets or exceeds ENERGY STAR® guidelines

  • Nationwide Support & Fast Shipping – Buy from the #1 Independent MRCOOL Dealer: MRCOOL DIY Direct

🛒 Order Your MRCOOL 5th Gen DIY Ceiling Cassette System Today!
Experience discreet, high-efficiency climate control you can install yourself. Whether you’re upgrading a bedroom, home office, or guest suite, this 5th Gen DIY mini-split is built for performance, convenience, and compliance.

🔗 Shop now at MRCOOL DIY Direct – stay cool and save the smart, easy way.

Specifications & Dimensions

 

Condenser

Dimensions

26.5" H x 13.46" L x 35.04" W

Voltage

240

SEER

22

Heating Capacity

15,001 - 20,000 BTU

Refrigerant Type

R-454B

Avg Coverage Area

750 - 900 Sq Ft

Compressor

Inverter

 

Air Handler

Dimensions

13.19 in D x 8.98 in H x 50.31 in W

Voltage

208/230

SEER

21.8

Cooling Capacity

17000

Heating Capacity

19000

Refrigerant Type

R-454B

Min Ambient Cool

60F ~ 90F

Min Ambient Heat

32F ~ 86F
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 85755445904

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4.1 ★★★★★
Based on 10 reviews
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Product Reviews
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Verified Purchase
NLB
Los Angeles, US
★★★★★ 5
Interesting
Format: Kindle
So I will say I enjoyed the story, for sure had its moments where it dragged but it was a great story. I really liked that omegas picked their alphas/make the pack. Normally the Alphas make it and the omega fits in with them which is great but I enjoyed this new version where all the power basically went to the omega. It was a nice change of pace. I can admit some of the weird bedroom stuff with her being pregnant was odd, it’s really not hard to do stuff when pregnant (I know I’ve had two and it’s normal and even encouraged at the end especially if you want the baby out). But I like the story as a whole and will read the second, I do hope the next one isn’t dragged bc it stopped being action or tense after she met her alphas and I don’t think it was brought up or properly done when they tried to do it. More sweet after she left.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 11, 2024
A
Verified Purchase
Altairjones
Pawtucket, US
★★★★★ 3
I’m a little disappointed.
Format: Kindle
I usually like Jillian West’s books but this one was missing a lot for me. The pregnancy didn’t come across as real. She’s on her feet for 12 hour days but is perfectly healthy at 8 months pregnant? Yet the week she moves in all of a sudden she’s not? She is planning on actually running during one of the plot buildups. But at 8 months pregnant that’s incredibly hard to do. The lack of breathing ability and lung space, the change in body center, mass, and gravity. All of it prohibits running, unless you’re an athlete this didn’t come off as at all realistic. I didn’t feel any connection with the alphas. There wasn’t any emotional connection. It could be because of the tense it was written in. But I didn’t get any deep feelings out of this. It came across as checking off boxes. Even the spicy scenes weren’t really believable for me. I wanted to see them fall for her, and it just kind of all fizzled. Even Bishop. One thing I did really like was the ending. I did not see it coming and I’m interested in reading book two because of it. But on the whole this book was mostly disappointing for me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2024
M
Verified Purchase
Melissa Williams
Boise, US
★★★★★ 4
4.25 stars
Format: Kindle
Vale is an 8 month pregnant omega working as a waitress at a strip club and a cam girl. She starts to get very creepy vibes from a regular at the club, and her baby daddy ghosted her. She has had an online relationship with a man named Bishop through her cam girl status. One night, bishop was paying to watch her sleep and ansthe creepy regular Andrew break in and watch her sleep he tells vale to come to him at his business now. She flees and finds herself at a large security company with some.hot of alphas who are there to help her. This imegaverse is a little different than I have read, but I am thoroughly enjoying it. Vale is not a traditional omega she was raised by a single beta mom, and the alphas are not normal alphas they have never really loved pack life. But they are ruthless mercenaries. They need her, and she needs them. I love the aspect of the stalker and now the plot twists at the end, so so good. Sometimes, it seemed a little slow and stale mated, but since this a duet, I think It was just her starting to have Vale get to know her alpha suitors. Cliffhanger for sure with this one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 9, 2024
A
Verified Purchase
Austin & Cambria
Whiting, US
★★★★★ 5
That ending 😫
Format: Kindle
I fell into a false sense of security and really thought this was gearing towards a happy ending. Then I realized there’s no work they don’t punish Andrew. I really liked Vale’s character. I don’t normally read books with pregnancy but going into this knowing she was pregnant made it more enjoyable for me. I loved Bishops devotion to her and her happiness. I also loved that Holt and Mercy couldn’t fight their attraction to her. I love scent matches so very much. I’m so curious to see how this duet will end up. And I need to pay more attention and notice that a book I’m starting is a duet to begin with lol
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2025
S
Verified Purchase
Sarah A
Dallas, US
★★★★★ 5
oh wow
Format: Kindle
I just knew there was something about Cooper! I’m wondering if he’s about to be included but damn I’m glad he’s at least not a rapist and creepy guy, he just got called on assignment and had to go! This should be interesting! She’s gonna run and then what’s his face is gonna grab her. I’m worried! Wow that was a great book and cliffhanger! Loving this!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 27, 2025

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