ACiQ 1 Ton Heat Pump AC Condenser | 18.8 SEER2 High Efficiency Inverter R454B (ACIQ-12-EHPD)
Check current price on AC Direct →
Key features
- 18.8 SEER2 inverter compressor for variable-capacity cooling and heating
- R-454B refrigerant compliant with current EPA low-GWP phase-down rules
- 1-ton (12,000 BTU) capacity suited to small zones requiring precise sizing
- 12-year parts warranty included at purchase with no dealer markup
- Sold factory-direct through ACiQ, undercutting name-brand street pricing
- Variable-speed operation reduces short-cycling and supports quieter runtime
About this system
The ACiQ ACIQ-12-EHPD is a 1-ton (12,000 BTU) inverter-driven heat pump condenser rated at 18.8 SEER2, which puts it firmly in the high-efficiency tier for a unit this size. It uses R-454B refrigerant, a lower-GWP alternative to R-410A that aligns with current EPA phase-down regulations, so the system is ready for today’s regulatory environment without the need for an early retrofit. The inverter compressor modulates output continuously rather than cycling on and off at full capacity, which typically means quieter operation, more stable indoor temperatures, and lower electricity bills compared with single-stage equipment at similar price points.
This condenser suits homeowners with a small zone, a sunroom, a garage apartment, or a tight addition who want a fully ducted split setup rather than a ductless mini-split. At 1 ton it is one of the smaller ducted heat pump condensers on the market, so proper Manual J load calculation matters more here than with a larger unit where slight oversizing is less consequential. It is sold direct, which keeps the price below comparable name-brand models, but it also means you will need to source an independent HVAC contractor for installation and service rather than leaning on a factory dealer network.
The ACIQ-12-EHPD delivers genuinely high efficiency at a price that undercuts most name brands, and the 12-year warranty offers real coverage without the usual dealer-registration hoops. The trade-off is an unconfirmed manufacturer lineage, no dedicated dealer service network, and a brand too new for long-term reliability data to exist, so buyers are accepting a degree of uncertainty that is real even if early owner feedback has been positive.
Overall score is the average of the five ratings above.
What we like
- 18.8 SEER2 rating is well above federal minimums for meaningful energy savings
- Inverter compressor provides quieter, more consistent comfort than single-stage units
- R-454B refrigerant is future-proof against upcoming regulatory restrictions
- 12-year parts warranty is among the longest in this price segment
- Factory-direct pricing typically lands below Carrier, Trane, and Lennox equivalents
Trade-offs
- Manufacturer identity is not disclosed, making parts cross-referencing and service history harder to verify
- No factory dealer network means service quality depends entirely on the independent contractor you hire
- Consumer Reports has not yet ranked ACiQ due to insufficient long-term field data
- 1-ton capacity leaves almost no margin for error in load calculations; an oversized or undersized install will underperform noticeably
What homeowners and pros say about ACiQ
Homeowners who have installed ACiQ equipment in the past two to three years consistently highlight quiet operation and lower utility bills as the standout benefits, and early feedback on inverter models like this one follows the same pattern. Responsive customer support from ACiQ direct is a recurring positive theme as well. That said, Consumer Reports does not yet rank ACiQ because the brand is too new to have produced the volume of long-term field data the organization requires, and that gap is something honest buyers should weigh. The specific failure modes worth watching in this segment include refrigerant coil leaks, capacitor degradation over time, and questions about long-term compressor lifespan under continuous inverter cycling, none of which ACiQ has a documented track record on yet simply because the brand has not been in the field long enough.
HVAC contractors who have worked on ACiQ equipment note that the units themselves are generally well-built and install without unusual surprises, but some flag the undisclosed manufacturer as a practical headache when sourcing replacement parts or looking up service bulletins. Because the equipment is sold direct rather than through a dealer network, the contractor you hire has no factory relationship or training pipeline to fall back on, which shifts more diagnostic responsibility onto them. That is not a dealbreaker for an experienced independent technician, but it is worth discussing with your installer before you commit, particularly given that R-454B service requires updated tooling that not every shop has yet adopted.
Sources: Consumer Reports heat pump ratings, HVACDirect on the ACiQ brand, AHRI Directory of Certified Product Performance, U.S. DOE appliance and equipment efficiency standards.
What it costs to run
At 18.8 SEER2, cooling this 1-ton system for a typical 1200-hour cooling season at the U.S. average electricity rate of $0.17/kWh works out to roughly $130 per year in cooling, about $53 less per year than a minimum-efficiency 13.4 SEER2 unit of the same size. Your real cost depends on your climate and local rate.
Method: (12,000 BTU/hr ÷ 18.8 SEER2) × 1200 hours ÷ 1000 × $0.17/kWh. Rate source: U.S. EIA average; cooling hours: moderate-climate estimate.
How it compares
| Brand | Comparable model | SEER2 | Stage | Price position |
|---|---|---|---|---|
| ACiQ | ACIQ-12-EHPD | 18.8 | Variable | Value pick |
| Carrier | Performance 18 Heat Pump (25HPB6) | 18 | Variable | Significantly higher than ACiQ |
| Trane | XR18 Heat Pump | 18 | Two-stage | Significantly higher than ACiQ |
| Lennox | Merit ML18XP1 Heat Pump | 18 | Single-stage | Moderately higher than ACiQ |
Competitor rows are comparable single-stage units at similar efficiency; price is relative position, not a quote.
Questions about this system
Does this condenser come with the air handler, or do I need to buy that separately?
The ACIQ-12-EHPD is the outdoor condenser only. You will need a compatible indoor air handler and a properly sized refrigerant line set to complete the system. ACiQ sells matched air handlers separately, and your installer should confirm coil compatibility before ordering.
Is R-454B refrigerant harder or more expensive to service than R-410A?
R-454B is classified as mildly flammable (A2L), which means technicians need updated equipment and certification to handle it safely. It is increasingly common as manufacturers transition away from R-410A, but not every local contractor may be equipped for it yet, so confirm your chosen installer is certified before scheduling the job.
Who actually manufactures this unit, and does it matter for parts availability?
ACiQ has not publicly disclosed its manufacturer, though forum discussion points toward the ICP and Carrier family without confirmation. That ambiguity matters because if a part fails outside warranty, cross-referencing compatible components with other brands is more difficult than it would be with a unit whose lineage is fully documented.
How do I register the 12-year warranty, and are there conditions attached?
ACiQ's 12-year warranty is advertised as included without dealer-registration requirements, but you should verify current terms on ACiQ's site at the time of purchase, since warranty conditions can change. Keep your purchase receipt and have your contractor document the installation date and refrigerant charge in case you need to make a claim.
Is 1 ton enough for my space, and what happens if I size it wrong?
One ton handles roughly 400 to 600 square feet under average conditions, but the actual answer depends on your climate, insulation, ceiling height, and window area. Because inverter systems at 1 ton have almost no capacity headroom, an undersized install will run constantly without reaching setpoint, and an oversized install will short-cycle and leave the space humid; a proper Manual J load calculation by your contractor is not optional here.
Specifications
| Cooling capacity | 1 Ton |
| Efficiency | 18.8 SEER2 |
| Refrigerant | R-454B |