The MRCOOL DIY® Mini Split series has been a go-to choice for homeowners seeking an efficient, easy-to-install heating and cooling solution. With the launch of the 5th Gen, MRCOOL has introduced several significant improvements over the 4th Gen, focusing on efficiency, eco-friendliness, and advanced technology. Let's break down the key differences between these two generations.
Key Upgrades in the 5th Gen MRCOOL DIY Mini Split
Refrigerant Change: Next-Gen R-454B
The 5th Gen model uses R-454B, a more environmentally friendly refrigerant with a lower global warming potential (GWP) compared to the R-410A used in the 4th Gen. This transition ensures compliance with evolving HVAC regulations and reduces environmental impact.
Higher Energy Efficiency
The 5th Gen boasts improved SEER2 (Seasonal Energy Efficiency Ratio) ratings, leading to greater energy savings and optimized performance over the 4th Gen. This translates into lower electricity bills and a more efficient system overall.
Expanded Multi-Zone Capabilities
While the 4th Gen supports up to 5 zones, the 5th Gen expands this capability to 6 zones, offering greater flexibility for larger homes or commercial spaces.
Expanded DIY Multi Condensers
The new DIY Multi condensers now feature additional ports, expanding from 3 to 6, offering more options for customized multi-zone setups.
New Product Offerings
MRCOOL has introduced new 6k BTU air handlers and cassette units, providing homeowners with more installation options for different room sizes and needs. The 6K air handler will be perfect for smaller rooms, such as bathrooms or small offices!
Comparison Table: 4th Gen vs. 5th Gen MRCOOL DIY Mini Split
| Feature | 5th Gen MRCOOL DIY | 4th Gen MRCOOL DIY |
|---|---|---|
| Refrigerant | R-454B (Eco-friendly) | R-410A |
| Energy Efficiency | SEER2 up to 23.9 | SEER2 up to 22.0 |
| Environmental Impact | Lower GWP (Greener option) | Higher GWP |
| HVAC Regulation Compliance | Future-proof with new regulations | Pre-2025 standards |
| Multi-Zone Support | Up to 6 zones | Up to 5 zones |
| Outdoor Noise Level | As low as 60 dB(A) | Up to 65 dB(A) |
| Quick Connect Feature | Yes (Improved DIYPro® Cable) | Yes |
| DIY Multi Condensers | 3-6 ports | 3-5 ports |
| New Product Offerings | Includes 6k BTU air handlers & cassette units | Standard sizes |
Refrigerant Impact Breakdown
| Refrigerant | Global Warming Potential (GWP) | Composition | Total Emissions (kg CO2-eq.) | Registered Safety Classification |
|---|---|---|---|---|
| R-410A (Old) | 2,088 | R-32 (50%) | 17,263 | A1 |
| R-454B (New) | 466 | R-32 (68.9%) | 15,008 | A2L |
Conclusion
The transition from the 4th Gen to the 5th Gen MRCOOL DIY Mini Split brings notable advancements in energy efficiency, environmental impact, and regulatory compliance. The 5th Gen also enhances user convenience with smart home compatibility and increased zoning options.
If you’re looking for a more eco-conscious, cost-effective HVAC solution with better performance, upgrading to the 5th Gen is a smart choice.
Are you considering switching to the latest MRCOOL DIY Mini Split? Let us know your thoughts in the comments!
2 comments
Mike McDaniel
Any ETA for a fifth-generation bundle with ceiling cassette(s)?
gary bianconi
please let me know when 5th gen is in 18k diy ceiling cassette