Review
The Goodman 3.5-ton horizontal system combines a gas furnace and air conditioning unit in one integrated package, targeting mid-range residential applications. Online Supply positions this as a value-oriented option for homeowners replacing older equipment or upgrading existing horizontal installations. The system's dual-fuel compatibility and plastic flue option appeal to contractors managing diverse installation scenarios across mixed climates.
Performance numbers tell a compelling efficiency story. The furnace delivers 120,000 BTU heating output at 96% AFUE, meaning 96 cents of every fuel dollar convert to usable heat. The cooling side produces 42,000 BTU (3.5 tons) with 16 SEER rating, translating to roughly 16 units of cooling per watt consumed. Variable-speed ECM blower supports up to 2000 CFM, allowing the system to match load demands rather than cycling at full capacity constantly.
Pros & Cons
Pros
- 96% AFUE furnace efficiency reduces heating costs significantly compared to older 80% units
- 16 SEER cooling efficiency qualifies for Energy Star and many utility rebates
- Variable-speed ECM blower motor optimizes airflow and reduces runtime noise
- Dual fuel capability handles both natural gas and propane without modifications
- Plastic/PVC exhaust flue reduces installation complexity and material costs
- Two-stage burner provides better temperature control and shorter runtimes
Cons
- Single-stage condenser limits cooling modulation compared to two-stage units
- 73 dBA noise level at full capacity is audible in quiet homes
- Tonnage mismatch: 5-ton condenser paired with 3.5-ton rating suggests sizing confusion in specs
Who Should Buy
Best For
Homeowners with horizontal ductwork in attics or crawl spaces who need both heating and cooling upgrades. This system is ideal for those seeking Energy Star certification and utility rebates without premium pricing.
Consider Alternatives If
Anyone with existing upflow equipment should verify compatibility, and buyers in areas with extremely cold winters may want to compare with higher-stage heating options.
Installation
Horizontal orientation requires proper return ductwork configuration and support mounting. The 48-pound unit fits compact spaces with dimensions of 26 inches wide by 24.5 inches tall by 21.125 inches deep. Plastic PVC exhaust venting simplifies installation compared to metal flue requirements. Dual voltage options (208/230V single phase) accommodate most residential electrical panels, requiring 23.5 to 40-amp breakers depending on final configuration.
Warranty & Reliability
Goodman provides 10 years of parts and labor coverage upon online registration. This duration is standard for mid-tier equipment and covers compressor, heat exchanger, and coil defects. Registration is essential, as some manufacturers reduce unregistered coverage to 5 years. Extended warranties are typically available through distributors for additional protection beyond the base coverage period.
Specifications
| SKU | LS381183850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 42,000 |
| Heating BTU | 120,000 |
| Refrigerant | R410A |
| Electrical | 208 / 230 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 73 |
| Weight (in lbs) | 48.000000 |
| Feature | Spec |
| AHRI Certificate Number | 7368842 |
| 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 |
| Configuration | Horizontal |
| Energy Star | Yes |
| Burner Stages | Two |
| Fuel Type | Propane, Natural Gas |
| Height | 24.5" |
| Width | 26" |
| Depth | 21.125" |
| Resources | CHPF Installation Manual CHPF 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. |
| 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 | 23.5 amps |
| Tonnage | 5 Ton |
| 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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