Review
The ACiQ 3.5 ton combo system pairs a high-efficiency 97% AFUE furnace with moderate-tier cooling in a compact downflow configuration. Branded under the Goodman family, this unit targets contractors and homeowners seeking legitimate efficiency gains without premium pricing. The 100,000 BTU heating output handles most single-family homes, while the 42,000 BTU cooling capacity (technically rated 5 ton on the AC side) serves well in temperate climates. At $0, availability and regional pricing become key decision factors.
The furnace excels with its modulating burner design and variable-speed ECM blower motor, which avoids the constant on/off cycling of older models and runs at lower noise levels. Cooling delivers 14 SEER efficiency using R410A refrigerant and a scroll compressor, landing solidly in the mid-range tier. The downflow A-coil style fits tight spaces with a 30-inch height and 21-inch width. Electrical requirements span 208/230V single-phase at 22 to 35 amp breakers, making standard residential panels compatible. Operating at 73 dBA, the unit remains reasonably quiet during typical operation.
Pros & Cons
Pros
- 97% AFUE furnace efficiency means only 3% heat loss, delivering measurable savings on natural gas or propane bills
- Modulating burner adjusts heating output in stages rather than cycling on/off, improving comfort and reducing wear
- Variable-speed ECM blower motor runs quieter and more efficiently than fixed-speed alternatives, reducing runtime energy use
- PVC exhaust flue compatibility simplifies installation in retrofit applications where metal chimneys aren't available
- 10-year warranty with online registration covers both heating and cooling components
Cons
- 14 SEER cooling efficiency lags newer 16+ SEER models, meaning higher summer operating costs in hot climates
- Single-stage condenser cannot modulate cooling output like two-stage units, resulting in less precise temperature control
- Not Energy Star certified despite high furnace efficiency, which may disqualify it from some utility rebate programs
Who Should Buy
Best For
Homeowners in moderate climates prioritizing heating efficiency and installers working in homes with downflow/horizontal ductwork or tight basement spaces. This system excels for properties where natural gas or propane costs justify the 97% AFUE investment.
Consider Alternatives If
Buyers in very hot regions should consider 16+ SEER models, and those seeking maximum rebates should verify Energy Star eligibility before purchasing.
Installation
Downflow installation suits basements, attics, or crawlspaces where horizontal or downward airflow reaches the ductwork below. PVC exhaust piping simplifies venting compared to metal flue systems, reducing install labor. The 120-pound unit is manageable for two technicians. Refrigerant line sets require 3/8-inch liquid and 7/8-inch suction lines with 3/8-inch insulation thickness. Standard electrical rough-in and gas supply connections apply. AHRI certification 7424272 confirms matched system performance.
Warranty & Reliability
ACiQ provides a 10-year parts warranty on the entire system when registered online after installation. This covers the furnace heat exchanger, compressor, and coil defects but excludes wear items like filters and capacitors. Registration is straightforward and highly recommended. Coverage aligns with industry standards for mid-tier equipment, offering solid protection without premium-level lifetime options.
Specifications
| SKU | ACIQ-4X-EHPD-UPG |
| Brand/Manufacturer | ACiQ |
| Cooling BTU | 42,000 |
| Heating BTU | 100,000 |
| Refrigerant | R410A |
| Electrical | 208 / 230 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 73 |
| Weight (in lbs) | 120.000000 |
| Feature | Spec |
| 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 |
| Energy Star | No |
| Burner Stages | Modulating |
| Fuel Type | Propane, Natural Gas |
| 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. |
| SEER1 (Efficiency) | 14 |
| Condenser Stages | Single Stage |
| Compressor Type | Scroll |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 7/8" |
| Max Breaker Size | 35 amps |
| Min. Breaker Size | 22 amps |
| Tonnage | 5 Ton |
| Liquid Line | 3/8" |
| Suction Line | 7/8" |
| Style | A-Coil |
| Suction Line Insulation Thickness | 3/8" |
| Length | 30 feet |
Frequently Asked Questions
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