Review
The Goodman 3.5-ton gas furnace and air conditioner combo represents a straightforward approach to whole-home climate control. Positioned as an Online Supply house brand offering through independent distributors, this downflow-capable unit targets budget-aware contractors and homeowners seeking reliable performance without premium pricing. With 120,000 BTU heating capacity and 42,000 BTU cooling output, it handles typical mid-size residential loads efficiently.
Performance figures show a 96% AFUE furnace that converts nearly all fuel to usable heat, paired with a 13 SEER air conditioner using R410A refrigerant. The multi-speed blower motor runs at variable speeds rather than full-blast cycles, reducing runtime noise and improving temperature consistency. At maximum output, the system delivers 2000 CFM through ductwork, suitable for homes with 1500-2000 square feet of conditioned space.
Pros & Cons
Pros
- 96% AFUE furnace exceeds minimum standards and reduces heating bills noticeably compared to 80% legacy systems
- 13 SEER cooling efficiency strikes balance between performance and cost, typical for mid-range residential units
- Multi-speed blower motor improves comfort by reducing temperature swings compared to single-stage designs
- Flexible R410A/R22 refrigerant compatibility eases regional sourcing and maintenance
- PVC exhaust capability simplifies venting in modern homes without metal chimney infrastructure
- 10-year parts warranty with registration provides meaningful protection at no additional cost
Cons
- Single-stage burner and compressor mean no efficiency modulation at partial loads, consuming more gas during mild weather
- 75 dB noise level is louder than high-efficiency variable-speed competitors, noticeable to some homeowners
- 13 SEER rating trails modern systems achieving 16+ SEER, limiting long-term energy savings
Who Should Buy
Best For
Homeowners in moderate climates replacing 15+ year old systems who prioritize upfront savings over premium efficiency, and contractors stocking reliable baseline equipment for residential service calls. This system makes sense where utility rates are reasonable and the home's existing ductwork won't support higher-end variable-speed components.
Consider Alternatives If
Energy-conscious buyers in cold climates or high-cost utility markets should explore 95+ SEER two-stage or modulating systems, as the payback period on this unit extends beyond 12 years in those applications.
Installation
Installation requires standard 115V single-phase 60Hz power with breaker sizing between 23.9 and 40 amps. The downflow configuration uses sweat-type valve connections with 3/8 inch liquid and 7/8 inch suction lines. PVC exhaust venting routes flue gases safely outside. Most installations take one day for experienced technicians familiar with Goodman equipment.
Warranty & Reliability
Goodman backs this system with a 10-year parts warranty activated through online registration. Coverage includes compressor, heat exchanger, and coil failures. Labor costs fall on the homeowner unless purchased through a contractor offering extended service agreements. This warranty length matches mid-tier industry standards.
Specifications
| SKU | LS38783830 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 42,000 |
| Heating BTU | 120,000 |
| Refrigerant | R410A or R22 |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 75 |
| Weight (in lbs) | 30.000000 |
| Feature | Spec |
| Energy Star | No |
| SEER1 (Efficiency) | 13 |
| Condenser Stages | Single Stage |
| Compressor Type | Reciprocating |
| Liquid Line | 3/8" |
| Suction Line | 7/8" |
| Liquid Valve Size | 3/8" |
| Max Breaker Size | 40 amps |
| Min. Breaker Size | 23.9 amps |
| Tonnage | 5 Ton |
| Valve Type | Sweat |
| Height | 30" |
| Width | 24.5" |
| Depth | 21" |
| Resources | CAPF Installation Manual CAPF 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. |
| Airflow Direction | Downflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Furnace Efficiency / AFUE | 96% |
| Blower Motor | Multi Speed |
| Maximum CFM | 2000 |
| Configuration | Upflow / Downflow |
| Flue Location | Right |
| Burner Stages | Single |
| Fuel Type | Gas |
| Style | A-Coil |
| Suction Line Insulation Thickness | 3/8" |
| Length | 30 feet |
Frequently Asked Questions
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