Review
The Mitsubishi Quad Zone H2i 36,000 BTU system positions itself as a comprehensive climate solution for multi-room residential applications. This wall-mounted configuration delivers modular comfort across four separate zones without requiring extensive ductwork modifications. The unit addresses a legitimate market need among homeowners tired of single-zone limitations and contractors managing retrofit projects where ducting installation proves economically prohibitive.
Performance metrics here warrant attention. The 23 SEER2 rating translates to measurable energy savings compared to baseline systems, while the 11 HSPF rating proves decisive for cold climates, eliminating expensive auxiliary heating strips during winter operation. The 36,000 BTU cooling capacity with 33,000 BTU heating output handles moderate to large homes effectively. Operating at 49 dB keeps noise within acceptable residential limits, critical for bedroom placement.
Pros & Cons
Pros
- Excellent SEER2 rating of 23 delivers lower operating costs over the system's lifetime
- 11 HSPF hyper-heat performance handles subfreezing temperatures without auxiliary heat
- Four independent zones with 6+9+9+9 BTU split configuration accommodates varied room sizes
- Quiet operation at 49 dB makes it suitable for bedrooms and living spaces
- Wireless controller included, reducing installation complexity and costs
Cons
- Requires 40-45 amp breaker and 230V single-phase, limiting installation locations
- Dehumidification rate of 0.23 gal/hr is modest for humid climates requiring aggressive moisture control
- 5-year parts warranty is standard but shorter than some competitor offerings extending to 10 years
Who Should Buy
Best For
Homeowners in climate zones 4-6 upgrading 3-4 rooms who want zone-by-zone temperature control and genuine cold-weather heating capability. Contractors familiar with multi-zone mini-splits will appreciate the straightforward 5/8 and 3/8 inch line sizing and 15-foot refrigerant line set.
Consider Alternatives If
Properties with weak electrical service or those in very humid regions better served by dedicated dehumidification systems should consider alternatives.
Installation
Installation demands 230V single-phase 60Hz service with breaker capacity between 40-45 amps. The 15-foot refrigerant line set and 5/8 inch suction line minimize field modifications. Drain requirements call for 5/8 inch tubing to accommodate 0.23 gal/hr dehumidification output. Most licensed HVAC technicians complete installation within one day, though electrical work may require a licensed electrician depending on local codes.
Warranty & Reliability
The 5-year parts warranty covers manufacturing defects but excludes labor and refrigerant. Mitsubishi's reputation for durability means claims rarely exceed 2-3 percent during this window. Extended warranties available from Online Supply can stretch coverage to 10 years, worthwhile for homeowners planning 15-20 year occupancy.
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. |
| 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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