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MRCOOL DIYHH-12 Hyper Heat 12K BTU Condenser – 5th Gen, -22°F Heating, R-454B, 230V QuickConnect
Regular Price
$1,861.00
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MRCOOL® DIYHH-12 Hyper Heat 12K BTU Condenser – 5th Gen DIY QuickConnect® (230V)
New for 2025 – 12K Hyper Heat DIY Condenser with Pre-Charged 25 ft Line Set
The MRCOOL® DIYHH-12-HP-C-230D25-O is a next-generation 5th Gen 12,000 BTU Hyper Heat DIY condenser designed to deliver high-efficiency heating and cooling in spaces up to 500 sq. ft.. Built for true cold-weather performance, this Hyper Heat mini split maintains reliable output down to -22°F and uses inverter technology for quiet, steady comfort instead of loud single-stage cycling.
Powered by environmentally friendly R-454B refrigerant, the DIYHH-12 condenser improves thermal efficiency and lowers greenhouse impact compared to older R-410A systems. Installation is simple thanks to the included 25 ft pre-charged QuickConnect® line set, which arrives sealed, factory-vacuumed, and filled — no gauges, pumps, nitrogen, or HVAC licensing required.
Whether you pair it with a MRCOOL DIY wall-mounted air handler or an OuttaSight® ceiling cassette (230V models), this condenser becomes a full smart mini split system with the MRCOOL SmartHVAC™ app, Amazon Alexa, and Google Assistant voice control.
IMPORTANT: This is a 208/230V condenser. It cannot be used with 115V DIY air handlers.
Key Benefits
- 12,000 BTU Hyper Heat condenser for spaces up to 500 sq. ft.
- Reliable heating performance down to -22°F
- 5th Gen inverter technology for smooth, quiet operation
- Uses R-454B low-GWP refrigerant for improved efficiency and reduced environmental impact
- 25 ft pre-charged QuickConnect® line set — factory-vacuumed and sealed
- No vacuum pump, gauges, nitrogen, or EPA license required
- Compatible with DIY wall mount and OuttaSight® ceiling cassette indoor units (230V)
- Smart control via MRCOOL SmartHVAC™ app, Alexa, and Google Assistant (with compatible indoor unit)
- Gold Fin® corrosion-resistant coating for inland and coastal installs
What's Included
- DIYHH-12-HP-C-230D25-O — 12K Hyper Heat Outdoor Condenser
- 25 ft pre-charged R-454B QuickConnect® line set
- Installation hardware & documentation
No vacuuming or refrigerant tools required.
Compatible Indoor Units (Sold Separately)
- MRCOOL DIY-12-HP-WMAH-230D25-O Wall Mount Air Handler
- MRCOOL DIYCASSETTE12HP-230D25-O OuttaSight® Ceiling Cassette
NOTE: This 12K Hyper Heat condenser is 208/230V only and will not work with 115V DIY air handlers.
Feature Highlights
- Hyper Heat operation down to -22°F
- Inverter-driven rotary compressor for high efficiency and low noise
- R-454B next-generation refrigerant
- Factory-sealed QuickConnect® line set — no field charging
- DIY-friendly installation with basic tools
- Gold Fin® condenser coil for long-term corrosion resistance
- Energy-efficient performance for year-round heating and cooling
Specifications
| Performance | |
|---|---|
| BTU Capacity | 12,000 BTU |
| Coverage Area | Up to approximately 500 sq. ft. |
| Operating Range | Heats down to -22°F (Hyper Heat) |
| Compressor Type | Inverter Rotary |
| Electrical | |
|---|---|
| Voltage | 208/230V |
| Phase / Frequency | 1 Phase, 60 Hz |
| Minimum Circuit Ampacity (MCA) | 15 A |
| Max Fuse / Breaker | 15 A (double pole) |
| Refrigeration & Piping | |
|---|---|
| Refrigerant | R-454B |
| Line Set Included | 25 ft QuickConnect® pre-charged line set |
| Liquid Line Size | 1/4" |
| Suction Line Size | 3/8" |
| Dimensions & Weight | |
|---|---|
| Unit Width | 31.69 in |
| Unit Height | 21.81 in |
| Unit Depth | 12.99 in |
| Unit Weight | Approx. 72.31 lbs |
Smart Controls (with Compatible Indoor Unit)
- MRCOOL SmartHVAC™ App (iOS & Android)
- Amazon Alexa & Google Assistant integration
- Scheduling, remote access, and smart comfort modes
FAQs About Our HVAC Products
Ordering & Compatibility
1. Do you sell HVAC equipment to homeowners and DIY installers?
Yes. Freedom HVAC Supply sells HVAC equipment and parts to contractors, property owners, and qualified DIY installers. Some products may require professional installation based on local codes.
2. How do I know if this HVAC product is compatible with my system?
Product pages include specifications and compatibility details. If you’re unsure, our team can help verify fit before you order.
3. Can HVAC contractors purchase from Freedom HVAC Supply?
Absolutely. We work with licensed HVAC contractors, installers, and professionals nationwide.
Installation & Support
1. Do HVAC systems require professional installation?
Some HVAC equipment must be installed by a licensed professional to meet code requirements or warranty terms. Always review manufacturer guidelines.
2. Can you help me choose the right HVAC system or part?
Yes. Our support team can assist with product selection based on your application, space, and installation needs.
3. Do you provide installation manuals or documentation?
Manufacturer installation guides and documentation are included or available upon request for most products.
Warranty & Shipping
1. Do HVAC products include a manufacturer warranty?
Most HVAC equipment includes a manufacturer warranty when installed according to guidelines. Warranty terms vary by brand and product.
2. Do you ship HVAC equipment nationwide?
Yes. We ship HVAC systems and parts throughout the continental United States using trusted freight and parcel carriers.
3. What should I know about freight delivery for HVAC equipment?
Larger HVAC equipment ships via freight and should be inspected upon delivery. Delivery details are provided during checkout.
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