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| Attribute | Details |
|---|---|
| Brand | Zero |
| Model | ZMSB-12HVT-USHHR2 |
| Product Type | Ductless Heat Pump |
| Product Type | Single-Zone Hyper Heat Ductless Mini Split Heat Pump |
| Cooling Capacity | 12,000 BTU/h |
| Heating Capacity | 12,000 BTU/h |
| Suitable Area | Up to approximately 550 sq. ft. |
| Energy Efficiency | 23 SEER2 / 9.5 HSPF2 |
| Power Supply | 208/230V, 60Hz, Single Phase |
| Low-Temperature Heating | Heating operation down to -25°C (-13°F) |
| Refrigerant | R454B |
| Electrical Requirement | 11A Minimum Circuit Ampacity / 15A Maximum Fuse |
| Refrigerant Line Size | 1/4″ Liquid / 3/8″ Gas |
| Factory Precharge | Up to 25 ft |
| Maximum Line Length | 50 ft |
| Maximum Height Difference | 33 ft |
| Installation | Professional Installation Included through Jimmy HVAC |
| Warranty | Manufacturer warranty applies; coverage is subject to applicable warranty terms and requirements. |
The Zero Z-MAX 12000 BTU Hyper Heat Ductless Mini Split Heat Pump – 220V is a single-zone Hyper Heat ductless mini split designed for efficient year-round heating and cooling. The 12,000 BTU system uses inverter technology, R454B refrigerant and a 208/230V power supply.
Its cold-climate heating capability and seasonal efficiency specifications make it suitable for properly sized residential spaces. Actual performance and coverage depend on application conditions, installation and system sizing.
Key Features
Energy Efficiency
23 SEER2 / 9.5 HSPF2
Refrigerant
R454B
Power Supply
208/230V, 60Hz, Single Phase
Low-Temperature Heating
Heating operation down to -25°C (-13°F)
Why Buy the Zero Z-MAX 12000 BTU Hyper Heat Ductless Mini Split Heat Pump – 220V?
The Zero Z-MAX 12000 BTU Hyper Heat Ductless Mini Split Heat Pump – 220V provides a dedicated single-zone heating and cooling solution with the electrical, efficiency and operating characteristics shown in the specifications below.
Professional installation is included through Jimmy HVAC. The advertised Jimmy HVAC price includes installation, subject to applicable installation requirements and site conditions.
Warranty: Manufacturer Warranty
This product is covered by the applicable manufacturer warranty. Warranty coverage, registration requirements and exclusions are subject to the manufacturer’s current warranty terms.
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Why Homeowners Trust Jimmy HVAC for Reliable Comfort
Reliable HVAC Solutions Built for Comfort, Efficiency, and Long-Term Peace of Mind.

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Professional HVAC Installation & Replacement
Jimmy HVAC provides professional installation, replacement, and system upgrades for residential and light commercial HVAC equipment throughout the Greater Toronto Area. Our certified technicians ensure every system is installed according to manufacturer specifications, Ontario building codes, and industry best practices.
Whether you are upgrading to a high-efficiency system, replacing ageing equipment, or installing a new HVAC solution, our team serves homeowners and property managers across the GTA with reliable service and transparent pricing.
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