MRCOOL DIY 5th Gen E Star 18K BTU Single Zone Mini Split Complete System with 25ft. Line Set 230V | System Set

Name: MRCOOL DIY 5th Gen E Star 18K BTU Single Zone Mini Split Complete System with 25ft. Line Set 230V | System Set
Brand: MRCOOL
SKU: DIY-18-HP-WM-230D25-O|SS
Price: 2909.0 USD
Availability: InStock

BY: MRCOOL

SKU: DIY-18-HP-WM-230D25-O | SS

| Availability: In stock

$3,636.00

$2,909.00

You Save: $727.00

Product Highlights

Heating and cooling in one system provides year-round comfort
Pre-charged quick-connect components simplify HVAC installation
Up to 22.5 SEER efficiency helps reduce cooling energy use
Inverter-driven operation adjusts output to changing comfort needs

Found A Better Price?

Share it with us now and we will beat it. Get the best deal online, guaranteed!

Live Chat With an Expert

Estimated Delivery Between

and .

Order within to get it by the earliest date.

Order within

to get it by the earliest date.

Authorized MRCOOL Dealer

Free & Fast Shipping From US Warehouses

Easy 30-Day Returns & Price Beat Guarantee

Lifetime Expert Support

MRCOOL DIY 5th Gen E Star 18K BTU Single Zone Mini Split Complete System with 25 ft. Line Set 230V | System Set

The MRCOOL DIY 5th Gen E Star 18K BTU Mini Split is designed for efficient, reliable heating and cooling in medium-sized spaces. With inverter technology, Energy Star certification, and advanced smart controls, this system ensures year-round comfort with low energy consumption. Its Quick Connect pre-charged line set allows for simplified DIY installation without special HVAC tools or certification, making it ideal for homeowners who want professional-grade performance with a hassle-free setup.

Please note: This system is designed for DIY installation and includes a pre-charged Quick Connect line set for easy setup without HVAC tools or certification.

MRCOOL DIY 5th Gen E Star 18K BTU Single Zone Mini Split Complete System with 25 ft. Line Set 230V Features

High-Efficiency Performance

Achieve up to 22.5 SEER2 and 13.7 EER2, delivering reliable cooling and heating while keeping energy bills low.

Powerful Heating & Cooling

With 18,000 BTU cooling and 18,000 BTU heating capacity, this system is built to keep your home comfortable in all seasons.

Smart Control Compatibility

Easily control your system from anywhere with built-in WiFi, iOS, and Android app compatibility. Voice control works with Alexa and Google Assistant.

Quiet Operation

Indoor noise levels as low as 19 dB(A) ensure whisper-quiet comfort, perfect for bedrooms, living rooms, or offices.

DIY Installation Made Simple

Includes a 25 ft. pre-charged R-454B line set, allowing homeowners to complete installation without needing HVAC tools or certification.

MRCOOL DIY 5th Gen E Star 18K BTU Single Zone Mini Split Complete System with 25 ft. Line Set 230V Applications

Bedrooms – whisper-quiet comfort for a perfect night’s sleep
Living rooms – reliable heating and cooling for shared family spaces
Home offices – maintain comfort while working without disruptive noise
Basements & dens – efficient climate control for enclosed areas
Apartments & condos – ideal for medium-sized living spaces up to 750 sq. ft.

What's Included

Everything you need is included with your product.

Condenser
Air Handler
25 ft. Line Set

Remote control
DIYPro cable
User Manual

Warranty

7 Years Compressor
5 Years Parts

MRCOOL Hyper Heat 48K Condenser Specifications

Dimensions & Weight

Specifications	Details
Condenser Dimensions	35.04 W" x 13.46 D" x 26.50 H"
Air Handler Dimensions	42.52 W" x 8.90 D" x 13.19 H"
Condenser Weight	93.48 lbs / 42.4 kg
Air Handler Weight	35.49 lbs / 16.1 kg

Capacity & Performance

Specifications	Details
Zone Capacity	1
Cooling Capacity	18,000 BTU
EER2	13.7
SEER2	22.5
Heating Capacity	18,000 BTU
HSPF2-4	11.5
HSPF2-5	8.5
Coverage Area	500 to 750 sq ft.
Outdoor Noise Level	58.5 dB(A)
Indoor Noise Level (Hi/Mi/Lo)	54.5/44.5/40.5/30.5/19.0 dB(A)

Electrical Requirements

Specifications	Details
Voltage	208-230V
Phase	1
Cycle	60 Hz
Max Fuse Breaker	20A
Min Circuit Ampacity	18A

Refrigerant & Piping

Specifications	Details
Refrigerant Type	R-454B
Refrigerant Volume	44.80 oz
Liquid Line Size	1/4"
Suction Line Size	1/2"
Max Line Set Length	98.4 ft.

Features

Specifications	Details
Inverter	DC
Compressor Type	Rotary
Fan Only Option	Yes
Quiet Mode	Yes
Auto Cool	Yes
Wifi Compatibility	Yes
App Compatibility	Yes
Works with IOS	Yes
Works with Android	Yes
Remote Control Included	Yes

Certifications & Warranty

Specifications	Details
Certifications	UL Listed, ETL Listed, Energy Star Certified, AHRI Certified
Warranty	7 Years Compressor \| 5 Years Parts \| Extended Limited Lifetime Replacement If the original owner does not register the unit, the warranty defaults to the standard 5 year parts, 7 year compressor warranty *The original, registered owner must be enrolled in the MrCool Care Program every year in order to qualify for the 7 year full unit replacement for compressor failure and lifetime compressor replacement.

Frequently-Asked Questions

Can I install this system myself?

Yes! This unit is specifically designed for DIY installation with its pre-charged Quick Connect line set. No HVAC tools or certification are needed.

Does this unit work in cold climates?

Yes. The MRCOOL DIY 5th Gen system uses advanced inverter technology and R-454B refrigerant, providing reliable performance even in colder conditions.

Is WiFi control included?

Yes. The system works with the MRCOOL app, as well as Alexa and Google Assistant, giving you full smart home compatibility.

Manual

MRCOOL DIY 5th Gen E Star 18K BTU Single Zone Mini Split Complete System with 25ft. Line Set 230V Manual

Shipping & Easy Returns

Shipping is free across the Lower 48. No fuel surcharges, no residential fees, and no liftgate charge on freight orders. The price you see is the price you pay. Read our full Shipping Policy here.

Most orders leave the warehouse in 1 to 2 business days and arrive within 3 to 10 business days. We send tracking the moment it ships.

Anything that ships on a pallet goes freight with liftgate and pallet jack included, so the driver gets it off the truck and onto the ground at your address. The carrier will call you directly to schedule a delivery window.

Returns are 30 days from delivery. For freight deliveries, inspect the shipment before you sign for it. If something is damaged in transit, note it on the delivery receipt and we handle the freight claim, not you. Read more about our Returns Policy here.

Why Buy From Us

Buying solar online should not mean guessing your way through the install. Here’s what you get with Off-Grid Source.

We size the system, not just sell it. Call before you order and a sales engineer will check the kit against your actual loads, tell you if you’re buying too much or too little, and list the site-specific parts your install will need.
A+ rated by the Better Business Bureau. Another trust signal that you’re buying from a real company that stands behind the sale.
Free shipping across the Lower 48. No hidden freight charges, residential fees, or liftgate surprises at checkout.
Guaranteed best prices. Find the same product for less elsewhere and we’ll match it.
30-day easy returns. If it is not the right fit, we’ll help you get it sent back.
A real person on the phone. Product questions, sizing, install planning, warranty help: call us at +1 (877) 556-3347.

FAST & FREE SHIPPING

From US-Based Warehouse

30-DAYS EASY RETURNS

Yes, Really.

GUARANTEED BEST PRICES

Find a Better Price? We’ll Match It.

GREAT CUSTOMER SERVICE

Call Us: (+1) 877-556-3347

Our Customers Tell It Better Than We Do

Excellent 4.9/5

Trusted By 10,000+ Customers. See All Reviews.

They Stood By Me

I was a DIY solar power wannabe... that is 'til I connected with Manny... The man's a prince! He not only knows his stuff; he walked me through all things electrical. To make sure I had all I needed... he gave me his cell phone # to text him anytime I got confused... nights and weekends included. The prices were very competitive... definitely go with Manny -- you won't go wrong!

Bruce D.

Awesome Service!

I am always hesitant to buy things at places I have never shopped... I want to give a shout out to Manny who with great patience and knowledge helped me get my orders... I felt valued as a customer and I will definitely be back in the future. I highly recommend them, they make you feel like family.

Jennene A.

Real Person, Honest Service.

I'm about to go off grid. I called Manny, he walked me through everything so I could truly understand what I needed and never tried to upsell me. He was honest and made a customer for life.

Ray B.

Easy Return

I would personally like to thank Manny... I purchased the inverter and decided I needed to return it... Manny was very understanding and went out of his way to help me return the product and not even have to pay for shipping return. He gives this company reputation, honor and quality customer service!

Roger V.

Totally Off Grid.

I have been talking with Manny the owner... He has not only helped me design a system but he's been assisting with the install and components. I am super pleased so far with the assistance.

Jeff S.

Great Product! Fast Shipping

We added 2 more batteries to our current set up. Pleased with the customer service from Off-Grid Source! Will be back!

Jason

Excellent Customer Service

Very fast response times. Very professional. I highly recommend!

Ray W.