Review
The Goodman 4 Ton system represents the practical middle ground in residential HVAC equipment. This furnace and air conditioner combo pairs a high-efficiency gas furnace with a moderately efficient air conditioner, targeting contractors and homeowners who need dependable performance without premium pricing. Goodman's reputation for straightforward engineering and broad parts availability makes this pairing a common retrofit choice across North America.
Performance specs tell a clear story. The furnace delivers 100,000 BTU of heating capacity at 96% AFUE, meaning 96 cents of every gas dollar converts to heat. The air conditioner produces 45,500 BTU of cooling with a 16 SEER rating, topping the ENERGY STAR threshold. The variable-speed ECM blower reaches 2,000 CFM maximum and operates across the heating and cooling cycle, reducing short cycling and improving comfort compared to single-speed designs.
Pros & Cons
Pros
- 96% AFUE furnace efficiency means lower heating bills, translating to roughly $150-200 annual savings versus 80% models
- 16 SEER cooling efficiency qualifies for ENERGY STAR certification and federal tax credits
- Variable-speed ECM blower motor adjusts to actual heating/cooling demand, reducing runtime and energy waste
- Two-stage burner operation fine-tunes heating output for comfort and efficiency on milder days
- Lifetime heat exchanger warranty plus 10 years parts protection shows manufacturer confidence in durability
Cons
- Single-stage air conditioner compressor cannot modulate cooling capacity, cycling on and off rather than ramping smoothly
- 73 dB noise level is moderately loud during compressor operation, noticeable in quiet neighborhoods
- Specs show 5 ton cooling capacity but product title claims 4 ton, creating potential confusion during sizing and installation
Who Should Buy
Best For
Homeowners replacing furnaces older than 15 years and wanting to upgrade the air conditioner simultaneously should consider this unit. It's ideal for properties in moderate climates where the heating load justifies a quality furnace more than extreme cooling demand.
Consider Alternatives If
Buyers seeking variable-capacity cooling or ultra-quiet operation should look at higher-tier models with dual-stage compressors and sound dampening.
Installation
Installation demands standard HVAC skills and equipment. The unit ships at 48 pounds and measures 34.5 inches tall by 21 inches wide by 28.75 inches deep, fitting most basement or utility room closets. PVC exhaust flue is required, which suits modern homes. Electrical needs are straightforward, 115V single-phase 60 Hz with breaker sizing between 23.9 and 40 amps. Pre-charged suction line insulation (1/2 inch thick, 50 feet) simplifies field work.
Warranty & Reliability
Goodman backs this unit with a lifetime heat exchanger warranty against manufacturing defects, covering the costliest furnace component. Parts receive 10-year coverage with online registration, a strong commitment that incentivizes keeping detailed paperwork. This two-tier warranty structure reflects confidence in build quality while placing time limits on non-core components.
Specifications
| SKU | LS381183850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 45,500 |
| 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 |
| Weight (in lbs) | 48.000000 |
| Feature | Spec |
| Replaces | GSX16S481 |
| 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 | 40 amps |
| Min. Breaker Size | 23.9 amps |
| Tonnage | 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 | 1 1/8" |
| 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 | 1/2" |
| Length | 50 feet |
Frequently Asked Questions
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