Review
The Mitsubishi 36,000 BTU Quad Zone H2i Hyper Heat Pump represents a premium multi-zone solution for contractors and homeowners seeking independent climate control without traditional ductwork. This wall-mounted system uses four separate indoor units connected to a single outdoor compressor, allowing occupants to set different temperatures in separate rooms or zones simultaneously. The SKU 201813 unit replaces the older MXZ-SM36NAMHZ model and incorporates Mitsubishi's latest efficiency and cold-climate heating technology.
Performance metrics justify the premium positioning. The unit delivers 36,000 BTU cooling capacity with a leading-edge SEER2 rating of 23, substantially higher than typical mini-split systems at 16-18 SEER2. Heating output reaches 33,000 BTU with an 11 HSPF efficiency rating, enabling operation down to 5°F using Hyper Heat technology. The 15 EER rating ensures strong cooling performance even during peak summer demand. R410A refrigerant and 230V single-phase power keep electrical demands manageable at 50 amps.
Pros & Cons
Pros
- Exceptional SEER2 rating of 23 delivers lower operating costs compared to standard mini splits rated 16-18 SEER2
- 36,000 BTU cooling capacity covers medium-sized spaces up to 1,500 square feet across four separate zones
- Hyper Heat technology maintains heating output down to 5°F outdoor temperature, eliminating reliance on backup heating
- Wireless controller included, eliminating extra installation costs and simplifying zone management
- 11 HSPF heating efficiency rating significantly reduces winter electricity consumption versus baseboard or resistance heat
- Compact wall-mounted design requires minimal ductwork compared to traditional HVAC systems
Cons
- Spec sheet lists dimensions as height 1/2 inch and width 1/2 inch, which appear to be data entry errors that warrant clarification from manufacturer
- Single 5-year parts warranty is shorter than some competing Mitsubishi models offering 10-year coverage
- 50-amp amperage requirement and 40-45 amp breaker demand necessitates proper electrical infrastructure, adding installation complexity
Who Should Buy
Best For
Contractors installing mini-split systems in newly constructed homes or retrofits where four independent zones simplify design. Homeowners in cold climates seeking efficient heating without gas furnaces or those expanding beyond single-zone cooling into multi-room climate control.
Consider Alternatives If
Budget-conscious buyers prioritizing lowest upfront cost over efficiency should explore single-zone alternatives or standard SEER2 16-18 models that cost significantly less.
Installation
Installation requires a licensed HVAC technician due to refrigerant handling and electrical complexity. The system demands a dedicated 40 to 45 amp breaker, meaning many older homes need electrical panel upgrades. Refrigerant lines use 3/8 inch liquid and 5/8 inch suction connections with up to 15 feet of line set length. Wall-mounted indoor units avoid ductwork but require mounting on four separate walls, adding labor time compared to single-zone systems.
Warranty & Reliability
Mitsubishi provides five years of parts coverage, protecting against compressor failure, control board defects, and component breakdowns. This warranty is transferable to secondary owners if the unit is registered, adding value for rental properties or future home sales. Labor costs during warranty period remain the homeowner's responsibility, so service contract consideration is prudent.
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 | 109-399 CFM |
| Capacity | Dehumidification Rate: 0.38 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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