Review
Goodman's 4-ton combo system pairs a high-efficiency furnace with a matching air conditioner into one integrated package. This downflow configuration works well for homes with basement or attic placement, making it a practical retrofit for contractors replacing aging split systems. The brand holds strong reputation in commercial and residential HVAC markets, though it positions itself as a value option rather than a premium brand. Energy Star certification signals EPA compliance, and the modulating gas burner technology has proven reliable across thousands of installations.
The 97% AFUE furnace converts nearly all natural gas or propane into usable heat, leaving minimal waste up the flue. The air conditioner side delivers 47,000 BTU cooling capacity with an 18 SEER2 rating, translating to roughly 12-15% better efficiency than standard 16 SEER2 units over a cooling season. A scroll compressor and two-stage operation reduce runtime and noise to 72 dB. The variable-speed ECM blower motor adjusts CFM from roughly 600 to 1,600 depending on heating or cooling demand, cutting electrical parasitic load compared to fixed-speed blowers.
Pros & Cons
Pros
- 97% AFUE furnace efficiency means minimal fuel waste and lower heating bills
- 18 SEER2 rating on the condenser beats the 16 SEER2 baseline by a meaningful margin
- Modulating gas burner adjusts heating output smoothly, reducing short-cycling and temperature swings
- Variable-speed ECM blower motor runs only as hard as needed, cutting electricity use
- Two-stage scroll compressor keeps noise to 72 dB, quieter than single-stage units
- Energy Star certified with 10-year warranty when registered online
Cons
- SKU shows 5-ton condenser but title lists 4-ton system, creating specification confusion
- 80,000 BTU heating output limits use in very large homes or poorly insulated buildings
- R410A refrigerant requires EPA-certified technicians, adding service cost over time
- Downflow configuration requires proper basement or attic space clearance
Who Should Buy
Best For
Homeowners with existing furnace-and-AC setups in moderate to large homes looking to replace both units at once will see real savings. This system makes sense if your heating and cooling costs run consistently high and you plan to stay in the home at least 5-7 years to recoup the investment through lower utility bills.
Consider Alternatives If
Skip this if you have a very large home needing more than 80,000 BTU heating capacity, or if you prefer a single-manufacturer warranty that covers both heating and cooling without separate component certifications.
Installation
Licensed HVAC technicians must install this unit, not DIY homeowners. Gas line connections, flue venting, and refrigerant charging all require certification. The downflow design needs 34.5 inches of height and 21 inches of width with proper clearance for airflow. A-coil condenser uses 3/8 inch liquid and 7/8 inch suction lines with sweat connections. Electrical requires a 115V single-phase circuit with 29.3 to 50 amp breaker sizing depending on final load calculations.
Warranty & Reliability
Goodman provides 10 years of parts coverage when you register the unit online within 60 days of purchase. This covers internal components like the compressor, heat exchanger, and blower motor. Labor warranty typically runs 1-2 years through your installer. Online registration is straightforward and worth the time investment for extended protection. Some parts like contactors and fan motors may carry shorter terms, so review the full manual before purchase.
Specifications
| SKU | GCVM970804CN |
| Brand/Manufacturer | Goodman |
| Cooling BTU | 47,000 |
| Heating BTU | 80,000 |
| Refrigerant | R410A |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 72 |
| 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 | 50 amps |
| Min. Breaker Size | 29.3 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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