Review
The ACiQ 3.5-ton system sits in a crowded mid-market segment, competing against Goodman, Daikin, and Lennox equipment priced between $600 and $1,200. At $647, this unit undercuts most direct competitors while maintaining respectable efficiency ratings. The downflow A-coil configuration makes it suitable for attics or basements where space constraints demand compact footprints. ACiQ markets to cost-conscious homeowners and volume contractors who prioritize quick installation and warranty coverage over premium features.
The 97% AFUE rating on the furnace side is legitimately strong. That modulating burner cycles capacity between 30% and 100%, reducing short-cycling waste and maintaining steadier indoor temperatures. Cooling performance registers at 13 SEER with 42,000 BTU output using R410A refrigerant. The variable-speed ECM blower pulls up to 2,000 CFM, adjusting automatically to match load. At 75 dB, noise levels are acceptable but not exceptional. Electrical requirements are modest, needing 23.9 to 40 amp service, fitting most existing residential panels.
Pros & Cons
Pros
- 97% AFUE furnace efficiency with modulating burners reduces heating costs year-round compared to 80% baseline units
- 13 SEER cooling rating meets Energy Star standards for 42,000 BTU capacity, sufficient for most residential applications
- Variable-speed ECM blower motor adjusts airflow automatically, improving comfort and reducing runtime noise to 75 dB
- PVC exhaust flue compatibility simplifies installation in homes with plastic duct infrastructure
- 10-year warranty with online registration provides genuine protection for both components
Cons
- Single-stage compressor lacks the efficiency and quiet operation of two-stage or variable-capacity alternatives
- 42,000 BTU cooling capacity falls short for larger homes, 4,000 to 5,000+ square feet requiring oversizing
- Reciprocating compressor design is noisier and less durable long-term than scroll or rotary compressors
Who Should Buy
Best For
Homeowners with 2,000 to 3,000 square foot homes needing both heating and cooling on a tight budget. Contractors performing retrofit installations in homes where downflow or horizontal mounting is required and PVC ducting is already present.
Consider Alternatives If
Anyone living in regions with extreme heating demands or cooling loads exceeding 3.5 tons should look at higher-capacity or two-stage units instead.
Installation
Downflow and horizontal configurations require careful ductwork planning, particularly in attics or crawlspaces with limited headroom. The 30-inch height, 21-inch width and depth are manageable but tight for accessory installation. Sweat valve connections demand soldering skill or a licensed technician. PVC exhaust flue compatibility is convenient for existing plastic duct homes. Installation manual is included, though field experience is essential for proper refrigerant charging and airflow balancing.
Warranty & Reliability
ACiQ provides 10 years of parts coverage when you register online after purchase. This covers both the furnace and air conditioning components. Registration is straightforward and typically completed during contractor handoff. The warranty does not cover labor, misinstallation, or improper maintenance. For a system at this price point, 10 years is competitive and offers genuine peace of mind.
Specifications
| SKU | ACIQ-4X-EHPD-UPG |
| Brand/Manufacturer | ACiQ |
| Cooling BTU | 42,000 |
| Heating BTU | 100,000 |
| Refrigerant | R410A |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 75 |
| Weight (in lbs) | 120.000000 |
| Feature | Spec |
| Energy Star | Yes |
| SEER1 (Efficiency) | 13 |
| Condenser Stages | Single Stage |
| Compressor Type | Reciprocating |
| Liquid Line | 3/8" |
| Suction Line | 7/8" |
| Liquid Valve Size | 3/8" |
| Max Breaker Size | 40 amps |
| Min. Breaker Size | 23.9 amps |
| Tonnage | 3.5 Ton |
| Valve Type | Sweat |
| Height | 30" |
| Width | 21" |
| Depth | 21" |
| Resources | CAPF Installation Manual CAPF Specifications Sheet Goodman Evaporator Coil Warranty 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. |
| AHRI Certificate Number | 7424272 |
| Airflow Direction | Downflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Product Features | Rebate Available |
| Furnace Efficiency / AFUE | 97% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 2000 |
| Configuration | Upflow / Downflow |
| Burner Stages | Modulating |
| Fuel Type | Propane, Natural Gas |
| Style | A-Coil |
| Suction Line Insulation Thickness | 3/8" |
| Length | 30 feet |
Frequently Asked Questions
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