Review
The Goodman ACiQ 3.5 ton downflow system represents solid mid-range equipment for homeowners seeking balanced heating and cooling performance. This furnace delivers 80,000 BTU heat output with 97% AFUE efficiency, placing it among the highest-efficiency gas furnaces available without venturing into premium brands. The matching air conditioner provides 36,000 BTU cooling capacity at 14 SEER, meeting Energy Star requirements. The combination addresses both seasonal needs competitively without excessive cost.
Performance data reveals genuine efficiency gains. The modulating furnace burner adjusts output continuously rather than cycling on-off, reducing temperature swings and improving comfort. Cooling arrives via scroll compressor with R454B refrigerant, a modern choice compatible with existing infrastructure. The variable-speed ECM blower motor scales from 0 to 1600 CFM, preventing the oversupply air delivery that wastes energy in traditional systems. Electrical requirements are modest, requiring 18.7 to 30 amp circuits depending on installation.
Pros & Cons
Pros
- 97% AFUE heating efficiency exceeds most competitors, reducing winter gas bills significantly
- Modulating burner stages deliver precise heat output, improving comfort and reducing cycling
- 14 SEER cooling with R454B refrigerant meets current EPA standards without retrofit concerns
- Variable-speed ECM blower motor adjusts airflow from 0 to 1600 CFM, minimizing energy waste
- 10-year warranty with online registration provides solid long-term protection
- 3.5 ton capacity handles larger homes without oversizing for smaller spaces
Cons
- Single-stage cooling compressor limits part-load efficiency during mild weather operation
- 73 dB noise level slightly higher than two-stage competitors, noticeable in quiet neighborhoods
- Downflow configuration limits installation flexibility in certain home layouts
- Price point competitive but not budget-leading in current market
Who Should Buy
Best For
Homeowners upgrading from 13-15 year old systems who prioritize heating efficiency and want Energy Star certification without paying ultra-premium pricing. This works particularly well in northern climates where furnace runtime matters more than AC efficiency.
Consider Alternatives If
Buyers in hot climates who run cooling 8+ months annually should consider dual-stage or variable-capacity AC units instead, as single-stage cooling wastes energy during partial-load conditions.
Installation
Downflow configuration works best in attics or above living spaces, with heated air delivered downward through floor registers. Plastic PVC exhaust flue requirement simplifies venting compared to older metal options. Right-side flue location influences placement flexibility. The system arrives ready for standard R410A or R454B connections. Professional installation is strongly recommended, though specifications support both new construction and replacement scenarios without major ductwork modification.
Warranty & Reliability
Goodman's 10-year parts warranty activates upon online registration, covering compressor, heat exchanger, and major components. This represents standard coverage in the mid-tier market, offering reasonable peace of mind without lifetime protection. Extended warranties are typically available through retailers. Labor coverage varies by installer, so verify coverage details before purchase.
Specifications
| SKU | ACiQ-36-EHPD-UPG |
| Brand/Manufacturer | ACiQ |
| Cooling BTU | 36,000 |
| Heating BTU | 80,000 |
| Refrigerant | R454B |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 73 |
| Weight (in lbs) | 120.000000 |
| Feature | Spec |
| Energy Star | Yes |
| SEER1 (Efficiency) | 14 |
| Condenser Stages | Single Stage |
| Compressor Type | Scroll |
| Liquid Line | 3/8" |
| Suction Line | 3/4" |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 3/4" |
| Max Breaker Size | 30 Amps |
| Min. Breaker Size | 18.7 Amps |
| Tonnage | 3.5 Ton |
| Height | 34.5" |
| Width | 21" |
| Depth | 28.75" |
| Resources | Goodman Brochure Goodman Installation Instructions Goodman Parts Manual Goodman Service Manual Goodman Specifications Goodman Technical Information Goodman User Information Goodman 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. |
| Configuration | Downflow/Horizontal |
| Style | A-Coil |
| AHRI Certificate Number | 7424271 |
| Airflow Direction | Downflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Product Features | Rebate Available |
| Furnace Efficiency / AFUE | 97% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 1600 |
| Flue Location | Right |
| Burner Stages | Modulating |
| Fuel Type | Propane, Natural Gas |
| Suction Line Insulation Thickness | 3/4" |
| Length | 30 feet |
Frequently Asked Questions
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