Review
Goodman's 4-ton combo system pairs a high-efficiency furnace with mid-tier air conditioning, targeting the sweet spot between budget consciousness and energy performance. The 120,000 BTU furnace and 48,000 BTU cooling capacity handle most residential loads across mixed climates. This downflow configuration sells well because it fits existing ductwork in basements and crawlspaces where upflow units won't fit. Goodman maintains solid contractor acceptance, meaning most HVAC professionals can service this unit without hesitation.
The 96% AFUE rating on the furnace side is genuinely impressive, converting nearly all gas energy into heating output. On cooling, the 16 SEER2 efficiency qualifies this unit for Energy Star certification and often triggers manufacturer rebates of $300 to $800 depending on region. The multi-speed blower motor prevents constant full-speed operation, which reduces noise and extends compressor life. However, the single-stage compressor competes with entry-level models rather than mid-range alternatives, meaning less granular capacity modulation during partial-load conditions.
Pros & Cons
Pros
- 96% AFUE furnace efficiency means lower heating bills during winter months, recovering most fuel energy as usable heat
- 16 SEER2 cooling efficiency easily exceeds Energy Star requirements and qualifies for utility rebates in many regions
- Multi-speed blower motor provides flexible operation, reducing runtime noise while maintaining consistent airflow at 2000 CFM maximum
- Compact downflow/horizontal configuration fits tight installation spaces like basements or utility closets better than traditional units
- 10-year warranty with online registration covers parts and labor, providing solid protection against manufacturer defects
Cons
- Single-stage compressor means less precise temperature control than two-stage units, cycling on and off rather than modulating capacity
- 74 dBA noise level is moderately loud during operation, particularly noticeable in open floor plans or finished basements
- R410A refrigerant specification limits compatibility if you're replacing older R22 systems without complete line replacement
Who Should Buy
Best For
This unit works well for homeowners upgrading from older 10-13 SEER systems who want measurable energy savings without premium pricing. It's particularly attractive for downflow installations in split-level or basement applications where space is constrained.
Consider Alternatives If
Skip this if you need ultra-quiet operation, have an existing R22 system you're trying to preserve, or require variable-capacity cooling for extreme temperature swings.
Installation
Installation requires proper downflow ductwork, typically with the furnace positioned above the AC coil. The 115V single-phase electrical requirement needs 26.4 to 45 amp breaker service, standard for most homes. PVC flue piping is mandatory due to the 96% efficiency, which produces cooler exhaust. Suction lines need 1/2 inch insulation minimum, and the included 50-foot suction line simplifies first-phase installation.
Warranty & Reliability
The 10-year parts and labor warranty activates upon online registration with the manufacturer. This coverage protects against compressor failure, heat exchanger cracks, and component defects. Labor coverage is valuable because furnace and AC repairs typically run $200 to $400 in service calls alone, so this effectively transfers that risk to Goodman for a decade.
Specifications
| SKU | LS381183850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 48,000 |
| Heating BTU | 120,000 |
| Refrigerant | R410A or R22 |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 74 |
| Weight (in lbs) | 48.000000 |
| Feature | Spec |
| Product Features | Rebate Available |
| 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 | 45 amps |
| Min. Breaker Size | 26.4 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 |
| Liquid Line | 3/8" |
| Suction Line | 1 1/8" |
| Style | A-Coil |
| Suction Line Insulation Thickness | 1/2" |
| Length | 50 feet |
Frequently Asked Questions
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