What's in the box
- MRCOOL® 24K DIY® 5th Gen Mini-Split Condenser
- 25ft DIYPro™ Communication Cable
- Installation Accessories
- MRCOOL® Warranty Documents
Free curbside shipping on eligible MRCOOL® systems across the continental U.S. Most products ship in 3–5 business days and arrive in 4–10 days, depending on your location. Freight carriers will call to schedule delivery.
Returns accepted within 30 days on new, unopened items in original packaging. A restocking fee of up to 35% may apply for HVAC equipment — we’ll always confirm before issuing a return authorization.
Each MRCOOL® system is backed by manufacturer warranty coverage as defined by product and model — typically 5–10 years on major components. Register your system after installation to activate full coverage.
Need help with sizing, voltage or compatibility? Email support@coolheatdirect.com — our U.S. team replies within one business day.
MODEL: DIY-24-HP-C-230D25-O
High-Capacity, DIY-Ready Comfort for Spaces up to 1,000 sq. ft.
The MRCOOL® 24K BTU DIY® 5th Generation Mini-Split Condenser delivers reliable, energy-efficient heating and cooling for larger rooms and open-plan areas without the need for a professional installer. Perfect for living rooms, open-plan studios, garages, and retail spaces up to 1,000 sq. ft.
This user-friendly system comes pre-charged with eco-safe R-454B refrigerant and a 25-foot Quick Connect® line set, making installation fast and clean with no vacuum pump or HVAC technician required. The durable DIYPro™ communication cable eliminates the need for electrical conduit while offering added protection against weather and outdoor elements.
Enjoy seamless control via the SmartHVAC® app, Amazon Alexa, or Google Assistant, or use the included wireless remote. The Gold Fin® condenser coating ensures extra corrosion resistance, ideal for coastal and humid areas.
Engineered for efficiency and convenience, this condenser includes Auto Mode, Energy-Saving Timer, Auto Restart, and Anti-Mildew Protection for cleaner, fresher air. It’s backed by one of the strongest warranties in the HVAC industry.
Why You’ll Love It
✅ Perfect for Larger Rooms — Designed for living rooms, open-plan spaces, and workshops up to 1,000 sq. ft.
✅ True DIY Installation — Pre-charged Quick Connect® line set and DIYPro™ cable simplify setup with no specialty tools or installers needed
✅ Smart-Home Compatible — WiFi-enabled for SmartHVAC® app, Alexa, and Google Assistant voice control
✅ Gold Fin® Condenser Protection — Resists corrosion in coastal and high-humidity environments
✅ Quiet Operation — Smooth, low-noise performance at just 58.5 dBA
✅ Eco-Friendly Refrigerant — Pre-charged with efficient R-454B
✅ Industry-Leading Warranty — Limited Lifetime Compressor Warranty (with registration), 7-Year Compressor Warranty, 5-Year Parts Warranty
What’s Included:
-
MRCOOL® 24K DIY® 5th Gen Mini-Split Condenser
-
25ft DIYPro™ Communication Cable
-
Installation Accessories
-
MRCOOL® Warranty Documents
Questions, answered
Everything homeowners ask before buying a MRCOOL® system.
Installation
Do I need an HVAC technician to install this?
No. MRCOOL® DIY systems are designed for homeowner installation. The pre-charged Quick Connect® line set means there's no refrigerant handling, no vacuum pump, and no special tools or license required.
How long does installation take?
Most single-zone systems go in within a few hours: mount the indoor air handler, set the outdoor condenser, connect the pre-charged line set, and power it on.
Do I need an electrician?
The system needs a dedicated circuit. Most homeowners have a licensed electrician add the breaker and disconnect — everything else you can do yourself.
Sizing & compatibility
What BTU size do I need?
As a rule of thumb: up to 400 sq ft → 9–12K BTU, 400–600 sq ft → 12–18K, 600–1,000 sq ft → 18–24K. Use the room-size guide above and factor in insulation, ceiling height and sun exposure.
Will it heat in winter?
Yes — these are heat pumps, so they heat and cool. Many MRCOOL® systems keep heating in sub-freezing temperatures; check each model's spec sheet for its low-temperature heating range.
115V or 230V — which do I need?
9K–12K units are usually 115V (standard outlet circuit); 18K and larger are typically 230V. The voltage is shown in the product options and specifications.
Warranty & support
What warranty is included?
MRCOOL® systems carry manufacturer warranty coverage — typically 5–10 years on major components when you register your system after installation.
How do I get help choosing or installing?
Email support@coolheatdirect.com — our U.S. team replies within one business day with sizing, voltage and compatibility help.
Shipping & returns
How fast does it ship?
Most products ship in 3–5 business days with free curbside delivery in the continental U.S. The freight carrier calls to schedule your delivery.
Can I return it?
Returns are accepted within 30 days on new, unopened items in original packaging. A restocking fee may apply to HVAC equipment — we always confirm before issuing a return authorization.
-
Genuine MRCOOL® Systems -
DIY-Friendly Installation -
U.S. Shipping -
Secure Checkout -
Sizing Help
