Review
The Mitsubishi Five Zone H2i Hyper Heat Pump represents a mature approach to efficient multi-room climate control. This 42,000 BTU, 3.5-ton system targets contractors and homeowners seeking zoned comfort without central HVAC complexity. The five independent zones allow precise temperature management across different areas of a residence, reducing the oversizing and energy waste typical of single-zone systems. Mitsubishi's reputation for reliability backs this offering, and the included wireless controller streamlines commissioning.
Performance metrics justify the premium positioning. The 21.5 SEER2 efficiency rating significantly outperforms baseline 16 SEER systems, translating to roughly 25-30% lower cooling energy consumption on identical loads. The 32,000 BTU heating capacity with hyper-heat technology maintains output during cold snaps when standard equipment throttles back. Noise levels span 26-49 dB in cooling and 26-46 dB in heating, making this unit suitable for bedrooms. The 13.4 EER and variable CFM between 191-504 enable load-matching that reduces cycling and wear.
Pros & Cons
Pros
- 21.5 SEER2 efficiency rating delivers measurable energy savings compared to standard 16-17 SEER equipment
- Five independent zones allow customized comfort control across different rooms without wasting energy on unoccupied spaces
- Hyper-heat technology maintains 32,000 BTU heating output in cold climates where competitors drop off significantly
- Wireless controller included, eliminating approximately $150-300 in additional equipment costs
- Single-phase 230V operation simplifies electrical installation in most residential applications
- Low noise operation ranges from 26-49 dB, suitable for bedrooms and living spaces
Cons
- Dimensions show 1/2 inch height and width which appears to be a data error, creating uncertainty about actual space requirements
- 5-year parts warranty is competitive but shorter than some Mitsubishi flagship models offering 10-year coverage
- Price listed as $0 prevents real cost-benefit analysis against competing systems in this capacity range
Who Should Buy
Best For
Contractors installing efficient climate control in homes with separate living zones, bonus rooms, or additions needing independent temperature control. Homeowners in moderate heating climates (zones 5-7) who want premium efficiency and don't want to run AC/heat to unused rooms.
Consider Alternatives If
Buyers in extremely cold climates requiring sustained heating above 32,000 BTU should explore larger capacity models, and those seeking extended warranties beyond 5 years should compare alternative brands.
Installation
Installation requires standard mini-split procedures: 15-foot pre-charged line set with 3/8 inch liquid and 5/8 inch suction lines, plus 5/8 inch drain sizing. Single-phase 230V electrical demands either 40-45 amp breaker sizing depending on zone configuration. Wall-mounted indoor heads across five zones require routing refrigerant and control lines through ceilings or walls. Most contractors complete full installation within one day once line sets are roughed.
Warranty & Reliability
The 5-year parts warranty covers compressor, coils, and electronics against manufacturing defects. Labor coverage varies by retailer and installer. This standard protection suits most residential applications where equipment doesn't experience extreme cycling or environmental stress. Homeowners planning 10-plus-year ownership should budget for potential repairs after year five.
Specifications
| SKU | 201813 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 42,000 |
| Heating BTU | 32,000 |
| Refrigerant | R410A |
| Electrical | 230 V. 1 Phase 60 Hz |
| BTU/Tonnage | 42,000 BTU/3.5 Ton |
| Mini Split Type | Wall Mounted |
| Zone Compatibility | Multi Zone |
| Warranty | 5 Years Parts Warranty |
| Decibel Level (dBA) | C: 26-49 & H: 26-46 |
| Weight (in lbs) | 15.000000 |
| Feature | Spec |
| Controller | Wireless Included |
| Additional Information | Drain: 5/8" |
| Maximum CFM | C: 191-504 & H: 191-437 |
| Capacity | Dehumidification Rate: 0.41 gal/hr |
| Liquid Line | 3/8" |
| Suction Line | 5/8" |
| Operating Mode | Cooling, Heating |
| Height | 1/2" |
| Width | 1/2" |
| Depth | 38" |
| Resources | HW-600 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-5C42NAHZ2 |
| Product Features | Hyper Heat |
| SEER2 (Efficiency) | 21.5 |
| EER | 13.4 |
| Max Breaker Size | 45 amps |
| Min. Breaker Size | 40 |
| Amperage Requirement | 50 |
| Length | 15' |
Frequently Asked Questions
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