Review
The Goodman 3-ton gas furnace and air conditioner system sits squarely in the mainstream market, offering contractors and DIY replacements an efficiency-focused solution at accessible pricing. With its 97% AFUE furnace and 18 SEER2 air conditioner, this downflow configuration targets homeowners upgrading older, less efficient equipment. Goodman's reputation for reliable, unpretentious equipment makes this a straightforward choice for those prioritizing energy savings over brand prestige.
Heating performance comes from an 80,000 BTU modulating furnace that adjusts output based on demand, reducing runtime and fuel consumption. The air conditioner delivers 35,000 BTU cooling with a two-stage scroll compressor and variable-speed ECM blower motor capable of 1,600 CFM maximum airflow. The 18 SEER2 rating reflects solid mid-tier efficiency, using R410A refrigerant. Electrical requirements are modest at 115V single-phase with 21.9 to 35-amp breaker sizing, keeping installation straightforward.
Pros & Cons
Pros
- 97% AFUE furnace efficiency with modulating burners reduces heating costs significantly compared to standard 80-90% units
- 18 SEER2 cooling efficiency with two-stage scroll compressor and variable-speed ECM blower
- Downflow A-coil configuration fits common attic and basement installations without redesign
- Energy Star certified with rebate availability from utility companies
- 10-year warranty with online registration covers manufacturing defects and provides peace of mind
Cons
- Specs list conflicting tonnage information: title states 3 tons but specifications show 5 tons, creating confusion on actual capacity
- Cooling BTU (35,000) and heating BTU (80,000) don't align with standard 3-ton or 5-ton specifications
- 71 dB noise level runs slightly louder than premium systems, noticeable during operation
Who Should Buy
Best For
Contractors stocking affordable equipment for residential replacements and homeowners replacing 15+ year old systems in single-family homes. This system works especially well for natural gas or propane heating in moderate climates where high AFUE and SEER2 ratings deliver measurable monthly savings.
Consider Alternatives If
Anyone needing exact tonnage matching or those seeking quiet, ultra-premium cooling performance should verify actual capacity and consider units with lower decibel ratings.
Installation
This furnace requires professional installation due to gas line connections, venting requirements, and local licensing mandates. The downflow A-coil design fits standard attic and basement installations without extensive ductwork modification. Plastic PVC venting on the right flue location suits most single-story homes. Technician licensing varies by jurisdiction, so verify local requirements before purchasing.
Warranty & Reliability
Goodman provides 10 years of parts coverage when you register online after purchase. This warranty covers manufacturing defects but excludes improper installation, maintenance issues, or damage from user error. Registration is straightforward and extends protection, making it worthwhile for long-term ownership. Service costs after year 10 are your responsibility.
Specifications
| SKU | GCVM970804CN |
| Brand/Manufacturer | Goodman |
| Cooling BTU | 35,000 |
| Heating BTU | 80,000 |
| Refrigerant | R410A |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 71 |
| Weight (in lbs) | 144.000000 |
| 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 | 5 Ton |
| Valve Type | Sweat |
| 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 | 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 | Downflow/Horizontal |
| Liquid Line | 3/8" |
| Suction Line | 7/8" |
| 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 |
Frequently Asked Questions
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