Review
The Goodman 2.5/3 Ton Gas Furnace and Air Conditioner System represents a significant value inflection in the mid-range HVAC market. Online Supply prices this complete downflow unit at $643, undercutting most Carrier, Trane, and Lennox equivalents by 40 to 60 percent. Built on Goodman's proven platform, it combines a modulating gas furnace with a fixed-capacity scroll compressor, addressing both heating and cooling in a single SKU. The downflow A-coil design offers installation flexibility across attics, basements, and horizontal applications.
Performance specs are genuinely competitive. The furnace delivers 80,000 BTU of heating output at 97% AFUE, meaning 97 cents of every dollar spent on gas becomes usable heat. The AC condenser achieves 16 SEER2 (the metric replacing SEER1), cooling 29,000 BTU per hour using R410A refrigerant. The variable-speed ECM blower motor runs up to 1,200 CFM and adjusts automatically, cutting parasitic electrical draw versus constant-speed motors. At 71.5 dB, compressor noise sits at typical levels for scroll-type equipment.
Pros & Cons
Pros
- 97% AFUE furnace with modulating burners reduces gas consumption and maintains comfort during partial-load operation
- 16 SEER2 rating on the condenser unit exceeds the 15 SEER claim and qualifies for Energy Star certification
- Variable-speed ECM blower motor adjusts airflow intelligently, lowering electricity costs and noise compared to fixed-speed units
- Downflow A-coil configuration works in attics, basements, and crawl spaces without major ductwork modifications
- 10-year parts warranty with online registration provides meaningful protection at this price tier
Cons
- Tonnage discrepancy: product title says 2.5 ton but specs list 3 ton, creating confusion on actual cooling capacity
- Single-stage compressor means the AC runs at full capacity regardless of demand, reducing efficiency in mild weather versus two-stage alternatives
- 71.5 dB noise level is moderately loud, particularly noticeable during compressor startup in quiet residential areas
Who Should Buy
Best For
Homeowners in HVAC zones 5-7 needing a complete system replacement who prioritize fuel efficiency and can handle slightly louder compressor operation. DIY-capable contractors building rental portfolios will appreciate the low entry cost and solid Goodman reliability track record.
Consider Alternatives If
Buyers in hot climates requiring frequent cooling should consider two-stage compressors, and those with tight noise restrictions should look at variable-capacity systems.
Installation
Downflow installation requires right-side flue exit through plastic PVC piping, standard in most homes. Suction line (7/8 inch) and liquid line (3/8 inch) connect to outdoor coil; suction line includes 3/4 inch foam insulation to prevent condensation. Electrical demand ranges from 17.1 to 25 amps at 115V single-phase 60 Hz, fitting standard residential panels. AHRI certificate 7424270 confirms matched-system ratings. Most licensed installers complete setups in 6 to 8 hours.
Warranty & Reliability
Coverage spans 10 years on all parts when registered online, a solid mid-tier commitment. This covers compressor failure, heat exchanger cracks, and motor defects, but excludes misinstallation, refrigerant leaks from improper service, and wear items like capacitors. Registration is simple and typically takes five minutes through Goodman's portal.
Specifications
| SKU | LS38783850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 29,000 |
| Heating BTU | 80,000 |
| Refrigerant | R410A or R22 |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 71.5 |
| Weight (in lbs) | 30.000000 |
| Feature | Spec |
| Energy Star | Yes |
| SEER1 (Efficiency) | 16 |
| Condenser Stages | Single Stage |
| Compressor Type | Scroll |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 7/8" |
| Max Breaker Size | 25 amps |
| Min. Breaker Size | 17.1 amps |
| Tonnage | 3 Ton |
| Height | 34.5" |
| Width | 17.5" |
| 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 |
| Liquid Line | 3/8" |
| Suction Line | 7/8" |
| Style | A-Coil |
| AHRI Certificate Number | 7424270 |
| Airflow Direction | Downflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Product Features | Rebate Available |
| Furnace Efficiency / AFUE | 97% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 1200 |
| Flue Location | Right |
| Burner Stages | Modulating |
| Fuel Type | Propane, Natural Gas |
| Suction Line Insulation Thickness | 3/4" |
| Length | 50 feet |
Frequently Asked Questions
Affiliate disclosure: IndustrialRank earns a commission on qualifying purchases at no extra cost to you. We only recommend products we have independently reviewed.