Review
The Goodman 4-ton (or 5-ton, depending on specs) combination furnace and AC system sits squarely in the sweet spot for cost-conscious homeowners upgrading their HVAC infrastructure. This integrated unit pairs a gas furnace with an air conditioning condenser, eliminating the need for separate equipment purchases and simplifying installation coordination. Goodman's reputation for reliability and straightforward engineering makes this system attractive to contractors and DIY-minded owners alike.
Performance numbers tell a compelling efficiency story. The furnace delivers 100,000 BTU of heating capacity at 96% AFUE, meaning 96 cents of every heating dollar goes directly to warming your home. On the cooling side, the 48,000 BTU capacity with 16 SEER2 rating keeps summer electric bills reasonable while meeting Energy Star criteria. The multi-speed blower motor adapts to heating and cooling cycles, reducing energy waste compared to single-speed alternatives. However, the single-stage compressor cycles completely on and off rather than modulating capacity, which slightly reduces part-load efficiency during mild weather.
Pros & Cons
Pros
- 96% AFUE furnace efficiency ranks among the best for gas heating, directly reducing heating bills in winter months
- 16 SEER2 cooling efficiency qualifies for Energy Star, meeting modern efficiency standards without premium pricing
- 100,000 BTU heating capacity handles most residential heating loads, even in colder climates with proper sizing
- Multi-speed blower motor optimizes airflow and comfort across different seasons and heating cycles
- Downflow/horizontal configuration fits compact spaces, basements, and crawlspaces where standard upflow units won't work
- Scroll compressor is proven durable technology with fewer moving parts than alternatives
Cons
- Single-stage compressor cycles on and off rather than modulating, resulting in less precise temperature control and slightly higher utility costs during partial-load conditions
- 74 dBA noise level is moderate to loud, noticeable in quiet homes, especially during AC operation
- Product listing shows conflicting tonnage specs (4 ton in title versus 5 ton in specifications), creating confusion about actual cooling capacity and proper sizing
Who Should Buy
Best For
Homeowners in mixed climates needing reliable heating and cooling without ultra-premium pricing, particularly those with downflow or horizontal installation requirements. Ideal for replacing 10+ year old systems where efficiency gains matter but variable-speed compressors aren't necessary.
Consider Alternatives If
Anyone seeking ultra-quiet operation, two-stage cooling, or smart modulation features should explore higher-tier models, as this unit's single-stage design limits efficiency at partial loads.
Installation
This downflow model requires 115V single-phase power, 26.4 to 45 amp breaker, and right-side flue venting with plastic or PVC ductwork. The compact 21 by 21 by 30 inch footprint fits tight spaces, but installers must plan refrigerant line routing (3/8 inch liquid, 1 1/8 inch suction) with proper 1/2 inch insulation. Professional installation strongly recommended for electrical and refrigerant connections.
Warranty & Reliability
Goodman provides a solid 10-year parts warranty upon online registration, covering compressor failures, heat exchanger cracks, and component defects. This standard protection reflects the manufacturer's confidence in durability. Registration is straightforward and essential, as unregistered units may carry shorter coverage periods. No labor coverage is included, so service calls and repairs require additional expense.
Specifications
| SKU | LS381183850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 48,000 |
| Heating BTU | 100,000 |
| 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 | 21" |
| 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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