Review
The Goodman GMVC800805CN is a straightforward combination system pairing an 80% AFUE furnace with an 18 SEER2 air conditioning coil. At $2,053, it sits in the value tier of the residential market, where builders and budget-conscious homeowners make up the primary customer base. Goodman positions itself as the accessible alternative to Carrier and Lennox, and this unit maintains that reputation through honest construction rather than cutting corners.
The cooling side delivers 47,000 BTU from a two-stage scroll compressor running R410A refrigerant, achieving 18 SEER2 efficiency rather than the marketed 17 SEER. The heating furnace produces 80,000 BTU across two burner stages with 80% AFUE, meaning 20 cents of every heating dollar escapes the flue. The variable-speed blower motor ranges from 0 to 2000 CFM, allowing better part-load efficiency than single-speed alternatives. Operating noise registers at 72 dB, moderate for residential units but noticeably audible.
Pros & Cons
Pros
- 18 SEER2 cooling efficiency, notably higher than the advertised 17 SEER rating
- Two-stage compressor and burners reduce energy waste during partial-load operation
- Variable-speed blower motor adapts CFM from 0-2000, improving comfort and efficiency
- 10-year warranty with online registration covers parts and compressor
- Scroll compressor is proven reliable in residential applications with low failure rates
- Energy Star certified, qualifying for utility rebates in many regions
Cons
- 80% AFUE is outdated by today's standards, now that 95% AFUE systems cost only $200-400 more
- 72 dB noise level runs louder than two-stage competitors, noticeable during operation
- Requires professional installation with licensed technician, no DIY options allowed
Who Should Buy
Best For
Budget-conscious homeowners and contractors serving rental properties or cost-sensitive markets. This system works well in areas with moderate heating demands where the 80,000 BTU output covers loads without oversizing.
Consider Alternatives If
Anyone in cold climates needing maximum efficiency, or buyers wanting to minimize operating costs over 15+ years should compare 95% AFUE models.
Installation
This unit requires a licensed HVAC technician for installation, non-negotiable due to gas connections and flue venting safety. The system uses sweat-type refrigerant valves, 3/8 inch liquid and 7/8 inch suction lines. Electrical setup needs 120V single-phase 60Hz with 29.3 to 50 amp breaker sizing. Upflow configuration with A-coil design fits standard attic or basement installations without unusual spatial demands.
Warranty & Reliability
Goodman provides 10 years of parts and compressor coverage with online registration, a solid baseline for the price tier. Registration takes five minutes and activates full coverage. Coverage excludes labor after year one, so long-term service costs depend on contractor rates. This warranty matches competitor offerings at similar price points.
Specifications
| SKU | GMVC800805CN |
| Brand/Manufacturer | Goodman |
| Cooling BTU | 47,000 |
| Heating BTU | 80,000 |
| Refrigerant | R410A |
| Electrical | 120 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 72 |
| Weight (in lbs) | 156.000000 |
| 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 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 | 204633302 |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Metal |
| Furnace Efficiency / AFUE | 80% |
| Blower Motor | Variable Speed |
| Maximum CFM | 2000 |
| Burner Stages | Two |
| Fuel Type | Propane, Natural Gas |
Frequently Asked Questions
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