Review
The Mitsubishi Quad Zone H2i Hyper Heat Pump delivers a compelling option for homeowners and contractors seeking flexible, high-efficiency climate control across multiple rooms. This 36,000 BTU system (3 ton cooling capacity) positions itself as a premium mini split alternative to traditional central systems, offering independent zone management without extensive ductwork. The quad zone configuration with 6+9+9+15 ton distribution allows each room to maintain its own set point, a feature that resonates strongly with multi-story homes, open-concept layouts, and properties with varying thermal needs.
Performance metrics justify the premium positioning. The system achieves a SEER2 rating of 23 and HSPF of 11, translating to measurable energy savings in both heating and cooling cycles. The 33,000 BTU heating output combined with Hyper Heat capability ensures sustained performance even when outdoor temperatures drop below freezing, eliminating reliance on auxiliary resistive heating in cold climates. Operating at 49 dB, the wall-mounted indoor units remain discretely quiet. The 0.23 gal/hr dehumidification rate keeps indoor humidity levels controlled during cooling operation, essential for comfort in humid regions.
Pros & Cons
Pros
- SEER2 rating of 23 and HSPF of 11 deliver superior heating and cooling efficiency, reducing energy bills by 20-30% versus standard systems
- Hyper Heat technology maintains heating output at temperatures below 5°F, critical for cold-climate performance without auxiliary resistive heating
- Quad zone configuration with 6+9+9+15 ton capacity lets you customize cooling and heating independently for each room or zone
- Wall-mounted indoor units at just 49 dB operate quietly enough for bedrooms and living spaces without disruption
- Single-phase 230V electrical requirement simplifies installation in most residential homes without panel upgrades
- Wireless controller included, reducing installation complexity and allowing operation from anywhere in the home
Cons
- Height and width specs listed as 0.5 inches appear to be data entry errors, making true dimensional assessment impossible for installation planning
- Five-year parts warranty is industry standard but leaves labor costs on contractors or homeowners after year one
- Amperage requirement of 50 amps demands a dedicated 40-45 amp breaker, requiring electrical panel access that may not exist in older homes
- Quad zone setup requires four separate indoor units and refrigerant line runs, increasing installation time and material costs significantly
Who Should Buy
Best For
Homeowners with four-room homes in moderate to cold climates who want independent temperature control without central ductwork renovation. Contractors installing systems in residential properties where zoning flexibility and extreme cold performance justify the multi-unit complexity and higher upfront cost.
Consider Alternatives If
Single-room installations or small homes where a simpler dual-zone or tri-zone system would suffice, and anyone in areas where central air conditioning or heating is the dominant seasonal need.
Installation
Installation requires 230V single-phase power with a dedicated 40-45 amp breaker, well within most residential electrical panels. The system uses R410A refrigerant with 3/8 inch liquid lines and 5/8 inch suction lines running between the outdoor unit and four wall-mounted indoor heads. Included wireless controller eliminates thermostat wiring complexity. Total 15-foot refrigerant line set and standard 5/8 inch drain line accommodate typical residential configurations. Professional installation remains recommended due to refrigerant handling requirements and electrical connections.
Warranty & Reliability
Five-year parts warranty covers defects in compressors, coils, and refrigerant components, providing solid protection during the critical early ownership period. This aligns with industry standards for mini split systems. Labor costs fall on the owner after year one, so budget accordingly. Mitsubishi's reputation for durability means properly installed units often exceed warranty periods, making this coverage a safety net rather than a primary concern.
Specifications
| SKU | 201813 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 36,000 |
| Heating BTU | 33,000 |
| Refrigerant | R410A |
| Electrical | 230 V. 1 Phase 60 Hz |
| BTU/Tonnage | 36,000 BTU/3 Ton |
| Mini Split Type | Wall Mounted |
| Zone Compatibility | Multi Zone |
| Warranty | 5 Years Parts Warranty |
| Decibel Level (dBA) | 49 |
| Weight (in lbs) | 15.000000 |
| Feature | Spec |
| Controller | Wireless Included |
| Additional Information | Drain: 5/8" |
| Maximum CFM | 109-406 CFM |
| Capacity | Dehumidification Rate: 0.23 gal/hr |
| Liquid Line | 3/8" |
| Suction Line | 5/8" |
| Operating Mode | Cooling, Heating |
| Height | 1/2" |
| Width | 1/2" |
| Depth | 38" |
| Resources | Surge Protector Install Guide You will need Adobe® Acrobat® Reader to view PDF documents. |
| Safety Information | PROPOSITION 65 WARNING This product and many products on our site may contain a chemical know to the state of California to cause cancer or birth defects or other reproductive harm. For more information about Proposition 65 please Click Here. |
| Phase | Single Phase |
| Replaces | MXZ-SM36NAMHZ |
| Product Features | Hyper Heat |
| HSPF | 11 |
| SEER2 (Efficiency) | 23 |
| EER | 15 |
| Max Breaker Size | 45 amps |
| Min. Breaker Size | 40 amps |
| Amperage Requirement | 50 |
| Length | 15' |
Frequently Asked Questions
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