Review
The Goodman 3-ton gas furnace and air conditioner system represents a straightforward, practical choice for residential HVAC upgrades. This upflow-configured unit combines gas heating and air conditioning into one package, simplifying installation compared to split systems. Goodman's reputation for dependable performance and affordable pricing makes this system particularly attractive to budget-conscious homeowners and contractors managing multiple jobs.
Performance metrics reveal a well-balanced unit. The furnace delivers 80,000 BTU heating output with an impressive 96% AFUE rating, meaning 96 cents of every heating dollar actually warms your home. The air conditioning side produces 36,000 BTU cooling with a 14 SEER rating, which meets modern efficiency standards. A multi-speed blower motor and 1600 CFM maximum airflow ensure even temperature distribution across the conditioned space.
Pros & Cons
Pros
- 96% AFUE furnace efficiency significantly reduces heating costs over the system's lifespan
- 14 SEER cooling rating provides above-average air conditioning efficiency for 2024 standards
- 3.5-ton capacity with 1600 CFM maximum airflow handles homes up to 1500 square feet comfortably
- Multi-speed blower motor allows customized comfort and reduces energy waste at partial loads
- Upflow/horizontal configuration works in basements, attics, or crawlspaces with flexible installation
Cons
- Single-stage compressor and burner lack modulating capability, meaning less precise temperature control than higher-end models
- 73 dB noise level slightly louder than variable-speed alternatives, which may be noticeable during operation
- R410A/R22 refrigerant compatibility adds complexity during future servicing or refrigerant transitions
Who Should Buy
Best For
Homeowners in moderate climates replacing 10+ year old systems and wanting reliable heating efficiency without premium pricing. Contractors looking for a dependable mid-range unit that balances performance and profit margins on residential installations.
Consider Alternatives If
Those needing ultra-quiet operation, seeking ENERGY STAR certification, or living in extremely hot climates where advanced cooling technology is essential should explore variable-capacity alternatives.
Installation
Installation requires standard HVAC knowledge and tools. The unit uses 3/8 inch liquid lines and 3/4 inch suction lines with matching valve sizes. It needs 115V single-phase electrical service with a 30-amp maximum breaker and accepts either R410A or R22 refrigerant. The plastic/PVC exhaust flue accommodates flexible ducting. Dimensions of 34.5 inches tall, 21 inches wide, and 28.75 inches deep fit most mechanical closets.
Warranty & Reliability
The 10-year warranty with online registration provides solid protection for major components like the compressor and heat exchanger. Online registration is mandatory to activate full coverage, so documentation matters. This duration is standard industry practice for mid-tier equipment and covers most failure scenarios within the critical first decade of operation.
Specifications
| SKU | LS38343830 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 36,000 |
| Heating BTU | 80,000 |
| Refrigerant | R410A or R22 |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 73 |
| Weight (in lbs) | 35.000000 |
| Feature | Spec |
| Energy Star | No |
| SEER1 (Efficiency) | 14 |
| Condenser Stages | Single Stage |
| Compressor Type | Scroll |
| Liquid Line | 3/8" |
| Suction Line | 3/4" |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 3/4" |
| Max Breaker Size | 30 Amps |
| Min. Breaker Size | 18.7 Amps |
| Tonnage | 3.5 Ton |
| 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 | 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 |
| Style | A-Coil |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Furnace Efficiency / AFUE | 96% |
| Blower Motor | Multi Speed |
| Maximum CFM | 1600 |
| Flue Location | Right |
| Burner Stages | Single |
| Fuel Type | Gas |
| Suction Line Insulation Thickness | 3/4" |
| Length | 30 feet |
Frequently Asked Questions
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