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ACiQ 12,000 BTU Mini Split: 21.4 SEER2 Inverter Heat Pump

Reliable Single Zone Climate Control for Grid-Independent Living

21.4 SEER2 efficiency — Minimizes power draw on solar and battery systems
Heats down to 5°F — Reliable warmth in deep winter without backup strips
55.5 dBA operation — Near-silent performance for sleeping quarters and offices
Gold Fin coating — Field-tested corrosion resistance for humid and coastal environments
  • FREE System Design Consultation -- Engineers verify fit with your inverter and battery setup
  • FREE Shipping -- LTL freight included on all orders, no minimum
  • Compatibility Guarantee -- Pre-vetted to work with off-grid power architectures

$858.95

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ACiQ 12,000 BTU 21.4 SEER2 Single Zone Wall Mounted Mini Split System w/ WiFi
ACiQ 12,000 BTU 21.4 SEER2 Single Zone Wall Mounted Mini Split System w/ WiFi
$858.95

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In the box

  • ACiQ-12W-HP230 wall-mounted air handler
  • ACiQ-12Z-HP230B outdoor condenser
  • WiFi control module
ACiQ 12,000 BTU 21.4 SEER2 Single Zone Wall Mounted Mini Split System w/ WiFi
ACiQ 12,000 BTU Mini Split: 21.4 SEER2 Inverter Heat Pump
$858.95

Reliable Single Zone Climate Control for Grid-Independent Living

The ACiQ 12,000 BTU single zone mini split delivers 21.4 SEER2 efficiency through advanced inverter technology that adapts to real-world conditions. Built for grid-independent homes, cabins, and converted spaces, this field-tested heat pump operates efficiently from 5°F to 122°F in cooling mode and 5°F to 86°F in heating mode. The Gold Fin full-protection coating defends against corrosion, while the rotary compressor keeps noise at 55.5 dBA even at peak workloads.

FREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORTFREE SHIPPING30-DAY RETURNSEXPERT SUPPORT
21.4 SEER2 Efficiency
Heats Down to 5°F
Gold Fin Coating
WiFi Enabled Control
12,000 BTU
Cooling & Heating
21.4
SEER2 Rating
55.5 dBA
Sound Level
Low-Draw Heating That Keeps Your Battery Bank Alive

Low-Draw Heating That Keeps Your Battery Bank Alive

Most mini splits pull too many watts for a solar-powered home, forcing you back onto the grid or into a gas generator every time you need heat. The ACiQ 12,000 BTU unit runs on a 15A breaker at 208/230V, keeping demand low enough to pair with your off-grid inverter without sacrificing warmth. At Off Grid Vault, every component we carry is pre-vetted for real-world compatibility with self-sufficient power systems — we spec this unit because it actually works on the inverter and battery setups our customers run. No guesswork, no mismatched components that leave you cold when the sun isn't shining.

Inverter Technology Adapts to Your Actual Conditions

Inverter Technology Adapts to Your Actual Conditions

The rotary inverter compressor modulates output to match your real heating and cooling load instead of cycling on and off at full blast. That is what delivers 21.4 SEER2 and 9.5 HSPF — efficiency numbers that translate directly into fewer kWh pulled from your battery bank each day. The system operates efficiently from 5°F to 122°F outdoors, covering heating and cooling across four seasons without supplemental resistance heat strips that would spike your power consumption. For a battery-backed home, steady-state efficiency is the difference between making it through a cloudy week or not.

Corrosion Protection and Quiet Operation for Remote Installations

Corrosion Protection and Quiet Operation for Remote Installations

Gold Fin full-protection coating on the condenser guards against corrosion from salt air, humidity, and environmental exposure. That matters when your unit sits outside a coastal cabin, a humid basement conversion, or a garage in the Southeast. At 55.5 dBA, this system runs quietly even at full workload — no rattling, no compressor drone interfering with sleep or work. The R410A refrigerant system uses a 1/4-inch liquid line and 1/2-inch suction line with a 25-foot charge, giving you straightforward installation without refrigerant handling complications. This is field-tested durability designed for locations where a service call is not a phone call away.

Installation Compatibility

Verify these conditions before ordering to ensure a straightforward install on your property.

  • Single zone coverage sized for one small room
  • 230V electrical circuit required
  • Refrigerant line capacity: 25 ft

Where This System Performs

Designed for focused climate control in a single defined space.

Cabin or Tiny Home
Garage or Workshop Conversion
Basement Living Space

Full specifications

At a glance

Dimensions
See product page
Warranty
See product page
Full specifications15 data points across 4 categories

Dimensions

Unit DimensionsSee product page

Power & Performance

Cooling/Heating BTU12000 BTU
SEER221.4
SEER18-20
EER11
HSPF9.5
Electric HeatHeat Pump
Compressor TypeRotary
Decibel Level (dBA)55.5

Materials

CoatingGold Fin full-protection coating
RefrigerantR410A
Liquid Line1/4"
Refrigerant Charge25'

Compliance & Warranty

Energy StarNo
WarrantySee product page

The Off Grid Vault Promise

Every product we carry is vetted for real-world performance. If it doesn't meet our standards, it doesn't make the cut.

Free ShippingShips free on all orders — no minimums, no thresholds, no surprise freight charges.
30-Day Performance GuaranteeIf it doesn't perform as specified, we make it right. Uninstalled returns accepted within 30 days in original packaging.
Free System Design ConsultationOur engineers size your system for your actual consumption — no guesswork, no incompatible components.
★★★★★
“Installed this in my 400 sq ft cabin in northern Arizona. Paired it with my EG4 48V system and it runs without issue. Heats the space down to 15°F outside, and the inverter tech keeps my battery draw manageable. At 55 dBA I barely hear it running. The WiFi control lets me pre-heat the cabin before I arrive on Friday nights. Exactly the kind of low-draw HVAC that makes off-grid living practical year-round.”
F
First L.Flagstaff, AZ

ACiQ 12,000 BTU Single Zone Wall Mounted Mini Split

ACiQ’s mini split systems provide intelligent technology and exceptional comfort, all at an affordable price. Their single zone systems are an ideal solution for areas like basement or garage conversions, or any individual space that needs an efficient boost in climate control.

The ACiQ Single Zone series ACiQ-12Z-HP230B heat pump condenser is designed to deliver optimal performance, featuring advanced inverter technology that adapts to changing conditions for superior efficiency. This makes it a perfect choice for homeowners seeking reliable and effective climate control in a single zone.

The ACiQ-12Z-HP230B is engineered to provide optimal comfort in both cooling and heating modes while using minimal power.


Its inverter technology ensures that energy consumption is kept to a minimum without compromising on comfort. Whether you’re cooling down during the summer or warming up during the winter, this system maintains a balance between energy savings and climate comfort. At ACiQ, we bring intelligence to your heating and cooling needs, offering systems that not only perform well but also help you save on energy costs over time.

12,000 BTU ACiQ Single Zone Condenser Specs

12,000 BTU ACiQ Single Zone Condenser
  • Refrigerant Charge: 25′
  • HSPF: 9.5
  • Cooling/Heating BTU: 12000 BTU
  • Decibel Level (dBA): 55.5
  • Electric Heat: Heat Pump
  • Energy Star: No
  • Refrigerant: R410A
  • SEER: 18-20
  • SEER2: 21.4
  • EER: 11
  • Compressor Type: Rotary
  • Liquid Line: 1/4″
  • Suction Line: 1/2″
  • Electrical: 208/230V 1 Phase 60 Hz
  • Max Breaker Size: 15
  • Min. Breaker Size: 15
  • Tonnage: 1.0
  • Dimensions: 21.85″ x 30.12″ x 11.93″


12,000 BTU ACiQ Single Zone Air Handler Specs

12,000 BTU ACiQ Single Zone Air handler
  • Cooling/Heating BTU: 12000 BTU
  • Maximum CFM: 324
  • Decibel Level (dBA): 38
  • Electric Heat: Heat Pump
  • Refrigerant: R410A
  • Liquid Line: 1/4″
  • Suction Line: 1/2″
  • Electrical: 208/230V 1 Phase 60 Hz
  • Tonnage: 1.0
  • Dimensions: 11.69″ x 31.57″ x 7.44″


12,000 BTU ACiQ Single Zone Mini Split Features

  • Intelligent comfort at an affordable cost
  • Ideal for up to a small room (depending on climate)
  • Efficient cooling from 5 F to 122 F outdoor temperatures
  • Efficient heating from 5 F to 86 F outdoor temperatures
  • Gold Fin full-protection coating
  • Quiet operation at even the highest workloads


Your Satisfaction with ACiQ is Guaranteed:

  • Lowest Price Guaranteed
  • Limited 12 Year Warranty

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Frequently Asked Questions

At 21.4 SEER2, this 12,000 BTU system pulls fewer watts than standard mini splits. On a self-sufficient power setup, that means smaller battery banks and fewer panels to support your heating and cooling. If you are replacing electric resistance heat or a window unit, the reduced daily kWh consumption lowers your total solar build cost. Over a 10-year LiFePO4 battery cycle, the efficiency savings compound into real dollars. This is not about a monthly bill — it is about building a system you can actually sustain.
Yes. Off Grid Vault is an authorized dealer for every brand we carry, including ACiQ. Your warranty is fully backed through us — not through a third-party ticket queue. If the unit does not perform as specified within 30 days and is uninstalled in original packaging, we make it right with our performance guarantee. After installation, warranty claims are handled through our team as your authorized point of contact. You are buying from a dealer who stands behind the equipment.
The ACiQ 12,000 BTU unit runs on 208/230V single-phase with a max 15A breaker. Whether it pairs with your system depends on your inverter's continuous output and battery bank capacity. That is exactly why Off Grid Vault offers a free system design consultation — tell us your inverter specs, daily kWh consumption, and battery bank size, and our engineers will confirm fit before you buy. We spec for compatibility because mismatched components are the number one reason HVAC installations fail on remote power systems.
We ship free on all orders, including this ACiQ mini split. LTL freight delivery is included — no surprise freight charges at checkout. Lead times vary based on current stock levels. If you are planning an installation around a specific timeline, reach out to our team and we will give you an honest assessment of when the unit will arrive. We do not promise dates we cannot meet.
The rotary inverter compressor in the ACiQ-12Z-HP230B is designed for sustained operation without the on-off cycling that wears out conventional compressors. Gold Fin coating protects the condenser coils from corrosion, which is the primary failure mode in humid and coastal environments. The R410A refrigerant system is sealed at the factory with a 25-foot line set charge. ACiQ provides a manufacturer warranty on the compressor and parts — and as an authorized dealer, Off Grid Vault processes those claims directly. For installations where service access is limited, this unit is built for the long haul.
The 12,000 BTU rating suits a small room — exact coverage depends on your climate zone, insulation quality, and ceiling height. In a well-insulated space in a moderate climate, expect coverage up to approximately 400-500 square feet. In extreme heat or poorly insulated spaces, that number drops. For a remote cabin or converted garage, the real question is daily kWh demand — and that is what our free system design consultation calculates. Tell us your space and conditions, and we will confirm whether this unit is sized correctly.
SKU: ACiQ-12W-HP230 / ACiQ-12Z-HP230B Category: Brand:

The Off Grid Vault Promise

Every product we carry is vetted for real-world performance. If it doesn't meet our standards, it doesn't make the cut.

Free Shipping Ships free on all orders — no minimums, no thresholds, no surprise freight charges.
30-Day Performance Guarantee If it doesn't perform as specified, we make it right. Uninstalled returns accepted within 30 days in original packaging.
Free System Design Consultation Our engineers size your system for your actual consumption — no guesswork, no incompatible components.

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About aciq Mini-Split HVAC

aciq is a trusted manufacturer of premium mini-split hvac. OffGridVault is an authorized dealer offering the full aciq lineup with free delivery, price match guarantee, and expert support.

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