Mrcool Advantage 5th Gen 18k BTU 230V Air Handler A-18-HP-WMAH-230D-O wall-mounted mini split indoor unit front view in white finish

Mrcool Advantage 5th Gen 18k BTU 230V Air Handler A-18-HP-WMAH-230D-O compact ductless air handler sleek wall installation perspective

Mrcool Advantage 5th Gen 18k BTU 230V Air Handler A-18-HP-WMAH-230D-O indoor unit showing airflow vent and modern design

Mrcool Advantage 5th Gen 18k BTU 230V Air Handler A-18-HP-WMAH-230D-O system components diagram with accessories and installation overview

Roll over image to zoom in Click on image to zoom

Mrcool Advantage 5th Gen 18k BTU 230V Air Handler A-18-HP-WMAH-230D-O

Name: Mrcool Advantage 5th Gen 18k BTU 230V Air Handler A-18-HP-WMAH-230D-O
Brand: MRCOOL
SKU: Advantage A-18-HP-WMAH-230D-O
Price: 379.00 USD
Availability: InStock

★★★★★

Iron Line Verified

Authorized Dealer: MRCOOL

Official Partner

IN STOCK & RECEIVE IN 2-7 DAYS

SKU: Advantage A-18-HP-WMAH-230D-O

Price:

$379.00

Quantity:

Financing as low as ~$6 / month (60 mo. terms) Estimate your payment

We pay your sales tax! (IL excluded) 📦 Order before 7 PM CST for same-day shipping.

Share this product

Section 179
Tax Savings

Save up to $79.59 on this equipment Estimate Your Tax Deduction

Calculate Savings →

Commercial Buyer?

Unlock volume pricing and dedicated facility support with Trade Accounts
(Requires minimum of 2+ items)

18K BTU wall-mount air handler, MRCOOL's budget-friendly Advantage line
Runs on 230V power
Multiple fan speeds, built-in thermostat
Pairs with the matching Advantage 18K condenser
Good fit for larger single-room heating and cooling

Order Placed

Ships Out

Delivered

*Please Note: This timeline is an estimate. Certain products may require an additional 1 week for manufacturing. Please speak with your sales rep, Matthew, for official details and confirmation before placing your order.

CALL US FOR THE MOST ACCURATE AND COMPETITIVE LTL SHIPPING RATE, (888) 308-5580

Get Questions Answered Fast

Experience: 20+ Years B2B • Origin: US-Based Support

EXPRESS SHIPPING

Most orders process in 1-3 days. Yes, even if it weights 400lb

Hassle-Free Returns

No restocking fees. Ever.

Manufacturer Warranty

Fully backed by the brands you trust.

Dedicated Rep Mathew

Speak to a US-Based Equipment Specialist: (888) 308-5580

Flexible Financing

Get Upto 60 Months Financing

High Capacity • Smart Control • Energy Efficient Comfort

Mrcool Advantage 5th Gen 18k BTU 230V Air Handler A-18-HP-WMAH-230D-O

The Mrcool Advantage 5th Gen 18k BTU 230V Air Handler A-18-HP-WMAH-230D-O is a powerful ductless mini-split indoor unit designed to deliver high-capacity heating and cooling for larger residential spaces. Featuring advanced R-454B refrigerant, this system improves efficiency while reducing environmental impact through a lower Global Warming Potential. Engineered for quiet operation and long-term reliability, this wall-mounted air handler eliminates the need for ductwork while providing consistent, balanced comfort. With built-in Wi-Fi and smart home compatibility, users can easily control temperature settings remotely for maximum convenience and energy savings.

Mrcool Advantage 5th Gen 18k BTU 230V Air Handler A-18-HP-WMAH-230D-O Applications

Large residential rooms, open-concept living areas, and master suites
Home additions, garages, and basements without ductwork
Energy-efficient HVAC upgrades and retrofit installations
Single-zone ductless systems requiring higher capacity output

Ideal for larger spaces that require powerful, efficient, and consistent heating and cooling without ductwork.

Mrcool Advantage 5th Gen 18k BTU 230V Air Handler A-18-HP-WMAH-230D-O Specifications

Brand	MRCOOL
Series	Advantage 5th Gen
Model	A-18-HP-WMAH-230D-O
Unit Type	Mini-Split Air Handler
Tonnage	1.5 Ton
Cooling Capacity	18,000 BTU
Voltage	208–230V
Phase	1
Frequency	60 Hz
CFM (5 Speeds)	429.7 / 388.5 / 259.0 / 217.8
Sound Level (dBA)	19 (Low) – 50.5 (High)
Mount Type	Wall Mounted
Color	White
Max Fuse Breaker	15 A
Min Circuit Ampacity	3 A
Liquid Line Size	1/4"
Suction Line Size	1/2"
Max Line Set Length	98.4 ft
Filter Type	Reusable
Dimensions (W × H × D)	37.99" × 12.56" × 8.46"
Net Weight	24.47 lbs
Certifications	UL, CSA, ETL, AHRI, NEEP, CEE Tier 1

Mrcool Advantage 5th Gen 18k BTU 230V Air Handler A-18-HP-WMAH-230D-O Performance & Features

R-454B Refrigerant Technology improves efficiency while lowering environmental impact.
High-Capacity Airflow supports larger rooms with consistent and balanced temperature distribution.
Smart HVAC Controller® Integration compatible with Amazon Alexa and Google Assistant.
Built-In Wi-Fi allows full remote access and system control via smartphone apps.
Follow Me® Function delivers personalized comfort by sensing temperature near the remote control.
Gold Fin® Coating provides enhanced corrosion resistance for extended equipment lifespan.
Advanced Protection Systems include overload protection and refrigerant leakage detection.
Multiple Fan Speeds offer precise airflow control across five settings.
Reusable Air Filter ensures easy maintenance and reduced operating costs.

Why Choose the Mrcool Advantage 5th Gen 18k BTU 230V Air Handler A-18-HP-WMAH-230D-O

High-capacity output for larger residential spaces
Energy-efficient operation with eco-friendly refrigerant
Flexible ductless installation for modern homes
Smart home integration for convenience and control
Backed by MRCOOL® warranty and optional lifetime coverage

The Mrcool Advantage 5th Gen 18k BTU 230V Air Handler A-18-HP-WMAH-230D-O is a powerful, efficient, and intelligent climate control solution designed for larger spaces that demand reliable year-round comfort.

Key Information

Order Cutoff Time: 2:00 PM EST
Order Handling Time: 1–3 business days (Monday–Friday)
Transit Time: 1–7 business days (Monday–Friday)
Total Estimated Delivery Time: 3–11 business days (Monday–Friday)
Shipping Availability: Free Shipping On some Items In The Contiguous United States only

For more information Click Here

Request Expert Consultation

Our tool specialists are ready to help you find the perfect solution for your specific application.

CAPITAL ACCESS

EQUIPMENT FINANCING

AVAILABLE

Preserve cash flow with up to 60 month financing.

Job Site Proven

Trusted by Facilities and manufacturing centers

JLT #180A-M2 Pneumatic Panel Flattener Customer review image

Travis Farwell | Farwell's Fine Woodworking Field Verified

I hope this helps

"I have attached the pictures of how I use my panel flattener. I hope this helps."

JLT #180A-M2 Pneumatic Panel Flattener

Mike Yaross Field Verified

Just what I needed

"Saw works great. Just what I needed. You may want to update the specs though. It says 110v but it’s 220v. I don’t think it will an 10” saw blade either. Haven’t tried but I don’t think it’s set up for one like it says. Ordering process was nice and easy. Thank you."

Castaly 12" Radial Arm Saw RS-612

FRANCISCO, Shop Manager Field Verified

Built for 24/7 Production

"Got the JLT #717C for our shop and it’s an absolute beast for narrow stile doors. The 2-second squaring cycle is legit—we’re easily pushing 100+ perfect doors a day now without stressing over glue joint alignment. Setup is super fast with the pin system, and the heavy-duty build takes daily abuse without losing accuracy."

JLT #717C Cabinet Door Clamp

JLT Pressurized A8 Glue Tank for PVA Glue PIZ.9001 in shop

Lincoln Lakes Ind | Lincoln Lakes Industries LLC Field Verified

Thanks for the service!

"Here are 2 pictures of the glue tank in our shop. I hesitated to send anything as it is not in its final place but perhaps it's good enough for you. We are using it for our drawer box station and assembly station. Thanks for the service!"

JLT Pressurized A8 Glue Tank for PVA Glue PIZ.9001

Gedalya Glauber Field Verified

Purchased Machine for Partner

"I purchased this machine for our partner in China to use. We had some issues but we were able to get them fixed thanks to iron line tools."

Virutex CE53S Edge Lipping Planer for Perfect Flush Edges 5300199

Virutex TWOO AB200 Corded Dowel Jointer (120V) 7900799 vertical dowel joint cutting on panel surface ensuring precise alignment and repeatable results

David & Joyce West Field Verified

I know this will meet my requirements

"haven't had a chance to use it but it looks like a well built product have a few projects down the road and I know this will meet my requirements. so hats off to your team! David"

Virutex TWOO AB200 Corded Dowel Jointer (120V) 7900799

Virutex AU93 Double Edge Trimmer And Scraper + RC21E Manual End Trimmer SET 2800086 complete edge finishing tool set shown with dual edge trimmer and manual end trimmer.

Stuart Casterlin | Stuart Casterlin Custom Cabinets and Fine Woodworking, Inc. Field Verified

Both Tools Work Great

"Both tools work great and are real time savers . The two tools that I received from your company were replacements for the exact same tools that I've used for the past years, I think its safe to say 20+ years. Extremely pleased with product and service."

Virutex AU93 Double Edge Trimmer And Scraper + RC21E Manual End Trimmer SET 2800086

Bradley Cole, CB Anderson Shutter Co Field Verified

They are just what we needed

"We use these clamps daily, and they're very helpful for our work. We are always happy to support a small business."

JLT #812B Clamp Design

California Air Tools 10020DCAD-22060 2.0 Hp Ultra Quiet Oil-Free 10 Gallon Air Compressor angled view with dual piston pump

Mike T., Shop Manager Field Verified

Quiet, Fast, and Totally Worth It

"Bought this California Air Tools compressor for the shop and it’s an absolute game changer. It’s incredibly quiet—you can actually have a normal conversation right next to it without yelling. It fills up fast, keeps up with all our nailers and blowguns with zero issues, and the oil-free pump means no maintenance. If you're tired of loud, annoying compressors ruining the vibe on your floor, grab this bad boy. Worth every penny."

Jet 16" x 40" Engine Lathe: Geared Head, 230 V 3 Phase, 3-1/8" Spindle Bore Dia, 25 to 1,800 RPM JT9-321381

Mark D. | Machine Shop Foreman Field Verified

Heavy Duty & Precise

"Brought this Jet 16" x 40" Engine Lathe into the shop recently and it’s an absolute beast. The 3-1/8" spindle bore is exactly what we needed for turning larger bar stock, and the geared head runs incredibly smooth from 25 all the way up to 1,800 RPM. It handles our heavy daily metalwork without breaking a sweat, and you can see how solid the build is right in the photo. If you need a reliable 3-phase lathe that holds tight tolerances all day, grab this bad boy. Worth every penny."

Jet Tools Lathe

Euroboor TCT 1" Depth Annular Cutter tungsten carbide tipped annular cutter designed for high-performance drilling in hard steel and abrasive materials.

LEKS KAMIHIRA Field Verified

Yep we got the cutter

"Yep we got the cutter. We haven’t used it, the project we purchased it for has ended. Shipping was fast and I had no issues getting my order"

Euroboor TCT 1" Depth Annular Cutter

Virutex Hand-Held Hot Air Edgebander Set AG52F AG98F AU93 RC21E 5200199 showing complete kit with edgebander, tape roll holder, and accessories

Jesse Pegorsch Field Verified

The edge bender is working great!

"The edge bender is working great! I’ll keep you in mind next time I need something for my shop"

Virutex Hand-Held Hot Air Edgebander Set AG52F: AG98F + AU93 + RC21E 5200199

Virutex Wheel Cutter Set of 2 Wheel Cutters for Laminate and Veneer 1527075 in retail packaging showing replacement cutting wheels

Bryce Bamsey Field Verified

Thanks for checking in.

"I believe they are working well judging by none of the guys have said anything about them other than a thank you for swapping them out for them hahah. So thanks for checking in."

Virutex Wheel Cutter Set Of 2 Wheel Cutters For Laminate And Veneer 1527075

Jesse Browning Field Verified

Figured it out

"I had issues initially with the order but iron line tools helped me figure it out and sent me another Handheld Gluer. Very good service."

Virutex EM125T Handheld Gluer With Upper Roller 2500300

Frequently Asked Questions

The Advantage A-18-HP-WMAH-230D-O indoor air handler is rated for a 15 A maximum fuse/breaker with a 3 A minimum circuit ampacity on 208-230V single-phase power; the outdoor condenser it pairs with has its own breaker rating.

It is an 18,000 BTU (1.5 ton) wall-mounted air handler with airflow from 217.8 up to 429.7 CFM, suited to larger rooms.

It operates from 19 dBA on low to 50.5 dBA on high.

It connects with a 1/4" liquid line and a 1/2" suction line, supports up to 98.4 ft of line set, and uses R-454B refrigerant.

Yes, built-in Wi-Fi and the Smart HVAC Controller provide app control, and it works with Amazon Alexa and Google Assistant.

It measures 37.99" W x 12.56" H x 8.46" D and weighs 24.47 lbs.

What a privilege to help great companies #getworkdone:

OUTFITTING FACILITIES FROM COAST TO COAST

Iron Line Tools provides the critical equipment that industrial and manufacturing operations rely on to execute at the highest level.

Field Reports

Mrcool Advantage 5th Gen 18k BTU 230V Air Handler A-18-HP-WMAH-230D-O

Estimated Delivery Timeline

Mrcool Advantage 5th Gen 18k BTU 230V Air Handler A-18-HP-WMAH-230D-O

Get Questions Answered Fast

Mrcool Advantage 5th Gen 18k BTU 230V Air Handler A-18-HP-WMAH-230D-O

Mrcool Advantage 5th Gen 18k BTU 230V Air Handler A-18-HP-WMAH-230D-O Applications

Mrcool Advantage 5th Gen 18k BTU 230V Air Handler A-18-HP-WMAH-230D-O Specifications

Mrcool Advantage 5th Gen 18k BTU 230V Air Handler A-18-HP-WMAH-230D-O Performance & Features

Why Choose the Mrcool Advantage 5th Gen 18k BTU 230V Air Handler A-18-HP-WMAH-230D-O

Key Information