Review
Goodman's three-ton gas furnace and air conditioner system hits a practical sweet spot for residential HVAC replacement. Priced at $3,136, this downflow configuration targets contractors and homeowners who want meaningful efficiency gains without venturing into high-end territory. The two-stage design on both heating and cooling sides appeals to buyers tired of single-stage systems that cycle inefficiently. Online Supply backs this unit with Energy Star certification and a rebate opportunity that can reduce net cost.
Performance specs tell the story here. The 96% AFUE furnace converts nearly all fuel energy to usable heat, sharply reducing winter gas bills compared to 80-90% baseline units. Cooling delivers 35,000 BTU capacity with an 18 SEER2 rating and two-stage scroll compressor that ramps power based on load. Variable-speed ECM blower motor adjusts CFM between roughly 800 and 2,000 depending on demand. The combination yields consistent comfort without the constant on-off cycling of cheaper single-stage equipment.
Pros & Cons
Pros
- 96% AFUE furnace efficiency reduces heating costs substantially compared to 80-90% single-stage units
- 18 SEER2 cooling rating delivers solid efficiency for a two-stage system at this price point
- Two-stage burner and compressor minimize short-cycling and improve temperature consistency
- Variable-speed ECM blower motor adapts output to actual demand, lowering electricity consumption
- PVC exhaust compatibility simplifies venting in retrofit applications where metal flues aren't practical
- ENERGY STAR certified and includes 10-year warranty with online registration
Cons
- 5-ton condenser paired with 3-ton furnace creates capacity mismatch requiring careful airflow balancing
- 71 dB noise level is moderately loud for a two-stage compressor, noticeable during operation
- Specs show conflicting tonnage ratings (3 ton title vs 5 ton actual) causing potential confusion
Who Should Buy
Best For
Contractors replacing systems in homes with moderate climate zones and homeowners prioritizing operating cost savings over premium features. Works well in mixed climates where heating and cooling loads are relatively balanced across the year.
Consider Alternatives If
Anyone in extreme cold climates who runs heating constantly should compare AFUE benefits against initial cost, or buyers with strict noise requirements who need quieter operation.
Installation
This downflow A-coil unit suits homes with utility areas or crawlspaces below living areas. Requires 115V single-phase power and 21.3 to 35-amp breaker. Refrigerant lines use 3/8-inch and 3/4-inch sweat connections with 50 feet of pre-insulated suction line included. PVC exhaust venting simplifies installation in tight spaces. Technicians should note the 5-ton condenser tonnage versus the 3-ton furnace rating and verify evaporator coil matching to prevent airflow problems.
Warranty & Reliability
Ten-year parts coverage applies with online registration, a reasonable protection span for residential systems. Covers manufacturing defects in compressor, coil, and control components. Registration requirement is straightforward and extends peace of mind. Standard exclusions apply for improper installation, refrigerant leaks, and physical damage. This warranty tier competes fairly with mid-range competitors.
Specifications
| SKU | LS38783850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 35,000 |
| Heating BTU | 120,000 |
| Refrigerant | R410A |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 71 |
| Weight (in lbs) | 30.000000 |
| Feature | Spec |
| Product Features | Rebate Available |
| Energy Star | Yes |
| SEER1 (Efficiency) | 18 |
| Condenser Stages | Two Stage |
| Compressor Type | Scroll |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 3/4" |
| Max Breaker Size | 35 amps |
| Min. Breaker Size | 21.3 amps |
| Tonnage | 5 Ton |
| Valve Type | Sweat |
| Height | 30" |
| Width | 24.5" |
| Depth | 21" |
| Resources | CAPT Installation Manual CAPT Specifications Sheet Goodman Evaporator Coil 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. |
| AHRI Certificate Number | 7368845 |
| Airflow Direction | Downflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Furnace Efficiency / AFUE | 96% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 2000 |
| Configuration | Upflow / Downflow |
| Burner Stages | Two |
| Fuel Type | Propane, Natural Gas |
| Liquid Line | 3/8" |
| Suction Line | 7/8" |
| Style | A-Coil |
| Suction Line Insulation Thickness | 3/4" |
| Length | 50 feet |
Frequently Asked Questions
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