Review
The Goodman 3.5-ton dual-stage system lands squarely in the practical middle ground of the residential HVAC market. At 18 SEER2 cooling efficiency and 96% AFUE heating, this unit targets cost-conscious homeowners and contractors who want solid performance without flagship pricing. The horizontal A-coil configuration, two-stage compressor, and variable-speed blower motor reflect modern design standards while maintaining straightforward service accessibility that contractors value.
Performance numbers tell a reliable story: the system delivers 35,000 BTU cooling capacity with 71 dB noise output, meaning it runs noticeably quieter than single-stage competitors during partial-load conditions. The 100,000 BTU furnace with two-stage burner control minimizes on-off cycling, preserving component lifespan while maintaining temperature setpoint within 1 to 2 degrees. Variable-speed operation peaks at 2,000 CFM, allowing the system to dial down in mild weather rather than blast at full capacity constantly.
Pros & Cons
Pros
- 18 SEER2 rating exceeds the 3-ton category standard, delivering measurable cooling efficiency gains
- 96% AFUE furnace converts nearly all fuel to heat, minimizing gas waste and lowering winter bills
- Two-stage compressor and two-stage burner reduce cycling noise (71 dB) and improve comfort consistency
- Variable-speed ECM blower motor adapts airflow for quieter operation and better humidity control
- Lifetime heat exchanger warranty demonstrates manufacturer confidence in core component durability
- Energy Star certification qualifies buyers for potential rebates in many regions
Cons
- Listed price of $89 appears incomplete or excludes installation labor, which typically runs $2,500 to $4,500 for a complete system
- 3.5-ton capacity may oversized for homes under 1,500 sq ft, causing short-cycling and reduced efficiency
- Scroll compressor is durable but less efficient than newer rotary designs in variable-load conditions
Who Should Buy
Best For
Homeowners in mixed climates replacing aging 3-ton systems who prioritize long-term operating costs over cutting-edge technology. Contractors seeking reliable, rebate-eligible units for mid-range residential installs will appreciate the straightforward two-stage design and solid warranty support.
Consider Alternatives If
Anyone in very hot climates needing 4+ tons or seeking premium efficiency above 21 SEER2 should explore higher-tier brands; homes under 1,200 sq ft may see better performance with a true 2.5-ton unit.
Installation
This unit requires a licensed HVAC technician, as improper gas line connection or venting creates serious safety risks. The system needs 115V single-phase 60Hz power with a breaker sized between 21.9 and 35 amps, standard for most residential panels. Suction line and liquid line connections use 7/8-inch and 3/8-inch sweat fittings respectively, so technicians must verify proper refrigerant charge and airflow measurements post-install.
Warranty & Reliability
Goodman backs the heat exchanger with a lifetime warranty and all other parts with 10 years coverage upon online registration. This two-tier approach protects against catastrophic furnace failure while acknowledging that compressors and controls typically fail within the first decade. Registration is essential, as coverage defaults to shorter periods without it.
Specifications
| SKU | GMVC961005CN |
| Brand/Manufacturer | Goodman |
| Cooling BTU | 35,000 |
| Heating BTU | 100,000 |
| Refrigerant | R410A |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | Lifetime Heat Exchanger and 10 Years Parts with Online Registration |
| Decibel Level (dBA) | 71 |
| Weight (in lbs) | 143.000000 |
| Feature | Spec |
| Energy Star | Yes |
| SEER1 (Efficiency) | 18 |
| Condenser Stages | Two Stage |
| Compressor Type | Scroll |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 7/8" |
| Max Breaker Size | 35 amps |
| Min. Breaker Size | 21.9 amps |
| Tonnage | 3.5 Ton |
| Valve Type | Sweat |
| Height | 34.5" |
| Width | 21" |
| Depth | 28.75" |
| Resources | Goodman Brochure Goodman Install 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 | This gas appliance requires a trained technician to install. Improperly connecting gas lines or improperly connecting a gas flue or venting may result in death. By purchasing this item, you are agreeing that you are using a trained technician to install this gas appliance. We will not be responsible for any injury or property damage arising from improper service or service procedures. Whoever installs or services this unit assumes responsibility for any personal injury or property damage which may result. Many jurisdictions require a license to install this equipment. 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 | Upflow/Horizontal |
| Liquid Line | 3/8" |
| Suction Line | 7/8" |
| Style | A-Coil |
| AHRI Certificate Number | 7368836 |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Product Features | Rebate Available |
| Furnace Efficiency / AFUE | 96% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 2000 |
Frequently Asked Questions
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