Review
The Goodman 3.5-ton gas furnace and air conditioner system represents mainstream residential HVAC, designed for contractors and homeowners seeking dependable performance without cutting-edge technology. Operating on propane or natural gas, this horizontal A-coil configuration fits upflow installations common in basement or utility closets. The unit strikes a practical balance between efficiency, affordability, and installation flexibility, making it a popular choice for replacement projects and new builds across North America.
Performance data shows a 96% AFUE furnace generating 100,000 BTU of heat with a two-stage burner that modulates between high and low fire, reducing energy waste during mild weather. The 3.5-ton air conditioner delivers 34,800 BTU cooling capacity with a 16 SEER2 rating, earning Energy Star certification. The variable-speed ECM blower motor adjusts from 0 to 2,000 CFM, matching airflow to demand rather than running at fixed speed like older models. Combined, these features reduce operating costs while improving year-round comfort.
Pros & Cons
Pros
- 96% AFUE furnace efficiency reduces heating costs compared to 80-90% single-stage units
- 16 SEER2 air conditioner rating qualifies as Energy Star, delivering 34,800 BTU cooling capacity
- Two-stage burner system adjusts heating output to match demand, improving comfort and reducing cycles
- Variable-speed ECM blower motor optimizes airflow from 0 to 2,000 CFM based on system needs
- Lifetime heat exchanger warranty plus 10-year parts coverage with online registration provides excellent protection
- Scroll compressor design is proven reliable in residential applications with lower noise operation
Cons
- Single-stage air conditioner limits efficiency gains in extreme heat, no modulating capacity like higher-tier models
- 73.5 dBA noise level is audible during operation, louder than some competing variable-speed systems
- Requires PVC exhaust flue, limiting installation flexibility in some retrofit applications with metal venting
Who Should Buy
Best For
Homeowners in mixed climates seeking solid efficiency gains without premium pricing, particularly those replacing 20+ year old equipment. Contractors building new residential construction who need reliable, code-approved equipment with good warranty support.
Consider Alternatives If
Buyers in extreme-heat climates wanting maximum cooling efficiency should consider dual-stage compressors, and those prioritizing whisper-quiet operation may find the 73.5 dBA level objectionable.
Installation
Installation requires standard 115V, 1-phase 60 Hz power with a 30-amp maximum breaker (minimum 18.7 amps). Dimensions measure 34.5 inches high by 21 inches wide by 28.75 inches deep, fitting typical utility closets and basement locations. The unit uses 3/8-inch liquid lines and 7/8-inch suction lines with 3/4-inch insulation on suction side. PVC exhaust flue is mandatory. Most contractors familiar with Goodman equipment complete installation in 4 to 6 hours.
Warranty & Reliability
Coverage includes a lifetime warranty on the heat exchanger, protecting against corrosion and cracks indefinitely. Parts carry a 10-year warranty with online registration, covering compressor, blower motor, and controls. This dual-tier approach gives homeowners long-term protection on expensive components while keeping initial cost reasonable. Registration is simple and typically completed at installation.
Specifications
| SKU | LS38783850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 34,800 |
| Heating BTU | 100,000 |
| Refrigerant | R410A or R22 |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | Lifetime Heat Exchanger and 10 Years Parts with Online Registration |
| Decibel Level (dBA) | 73.5 |
| 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 | 30 amps |
| Min. Breaker Size | 18.7 amps |
| Tonnage | 3.5 Ton |
| Height | 34.5" |
| Width | 21" |
| Depth | 28.75" |
| Resources | Goodman Brochure Goodman Install 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 |
| Liquid Line | 3/8" |
| Suction Line | 7/8" |
| Style | A-Coil |
| AHRI Certificate Number | 7368836 |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Product Features | Rebate Available |
| Furnace Efficiency / AFUE | 96% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 2000 |
| Burner Stages | Two |
| 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.