Product overview
Design Your Own MRCOOL® DIY® 2-Zone 5th Gen Multi Zone
The MRCOOL DIY 5th Generation Multi-Zone is the industry’s first true whole-home ductless HVAC system that can be installed by a homeowner. With pre-charged Quick Connect® line sets, you can heat and cool multiple rooms without hiring an HVAC professional.
Customize your 2-zone to match the way your home is actually used—bedrooms, living areas, sunrooms, basements, shops, and detached spaces. Every system uses factory-sealed line sets and advanced inverter technology to deliver quiet performance, lower energy bills, and reliable comfort in hot or cold climates.
Whether you’re upgrading an entire home, finishing a basement, remodeling a rental, or expanding a shop or office, MRCOOL Multi-Zone DIY systems provide the most reliable, future-ready HVAC solution available for true do-it-yourself installation.
The MRCOOL DIY 5th Generation 2-Zone is the industry's first true whole-home ductless system built for homeowner installation. With pre-charged Quick Connect® line sets, you skip the vacuum pump, skip the gauges, and skip the $3,000 installation bill — all without voiding your warranty.
Why It Stands Out
Quick Connect® Line Sets
Pre-charged and pre-flared from the factory. Just connect and go — no specialty refrigerant tools required.
True Zone Control
Set a different temperature in every room. Each indoor head unit operates independently from a single outdoor condenser.
R454B Refrigerant
Next-generation low-GWP refrigerant — cleaner for the environment and future-proof for upcoming regulations.
Smart Home Ready
Built-in Wi-Fi lets you control both zones from your phone. Compatible with Alexa and Google Home.
Year-Round Heat Pump
Efficiently heats and cools in a single system. Operates in low outdoor temperatures — no separate furnace needed.
Warranty-Backed DIY
MRCOOL's DIY line is specifically designed for homeowner installation without voiding manufacturer warranty coverage.
How Installation Works
- Choose your condenser and head units — Pick the right BTU condenser for your total square footage, then select a wall-mount head for each zone based on room size.
- Select your line set lengths — Measure the distance from your outdoor unit to each room. We'll include the right pre-charged line set for both zones.
- Mount the heads and run the lines — Hang each indoor unit, drill a pass-through hole, and feed the line set. No vacuuming or manifold gauges required.
- Connect the outdoor unit and power up — Snap the Quick Connect® fittings, wire the condenser to a dedicated circuit, and you're running — typically in a single weekend.
Everything Included
Your configured system ships complete — no surprise add-ons:
- Outdoor condenser unit
- 2 indoor wall-mount head units
- 2 pre-charged Quick Connect® line sets
- 2 wireless remotes
- Mounting hardware and brackets
- Built-in Wi-Fi module
- Full installation manual
- Free shipping + rebate eligibility information
Build Your System Today
Free shipping on your complete system.
Financing available with Shop Pay or Paytomorrow.
Estimated delivery: 1–5 business days.
Not sure which BTU size or line set lengths you need? Contact our team and we'll help you build the perfect system for your home.
In-stock systems ship fast and free with curbside freight delivery, typically arriving in 4–10 days. Please inspect each box at delivery and note any damage on the receipt before signing — it keeps any freight claim quick and simple.
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At a glance
Tech specs
| Zones / rooms | 2 Zones |
|---|---|
| Power | 230 Volt |
| Line set | Custom |
| Mount type | Wall |
| Installation | DIY Installation |
| Brand | MRCOOL |
Sizing in doubt? Our HVAC experts confirm capacity for your rooms before you order — free. Ask us about utility rebates for high-efficiency heat pumps in your area.
Complete Your System
See it done
Watch the full DIY install
Every step, start to finish — most homeowners wrap a single zone in a weekend.
