Review
Goodman's 4/5-ton combined furnace and air conditioning system represents a middle-market offering that balances efficiency gains with straightforward installation. The unit combines an 80,000 BTU furnace with a matching air conditioner, bundled for contractors looking to simplify ordering. This particular model earned AHRI certification number 7424266, confirming tested performance ratings. Online Supply packages it as a complete solution, though the capacity specifications show some inconsistency between marketing copy and engineering documents.
Performance numbers tell the real story. The furnace achieves 97% AFUE with a modulating burner that adjusts between low and high fire based on heating demand, reducing short-cycling waste. Cooling output reaches 45,500 BTU at 16 SEER2 efficiency using R410A refrigerant and a scroll compressor. The variable-speed ECM blower motor maxes out at 1,600 CFM and continuously adjusts speed, keeping energy consumption closer to actual needs than fixed-speed equipment. Energy Star certification validates these lab results hold up in real-world conditions.
Pros & Cons
Pros
- 97% AFUE furnace efficiency with modulating burner stages reduces heating costs significantly
- 16 SEER2 cooling rating and Energy Star certification provide strong year-round efficiency
- Variable-speed ECM blower motor adjusts output to actual load, improving comfort and efficiency
- Scroll compressor with 45,500 cooling BTU handles 5-ton capacity reliably
- PVC exhaust compatibility simplifies venting in modern homes and renovations
- 10-year warranty with online registration covers parts and labor concerns
Cons
- Single-stage compressor limits part-load efficiency compared to two-stage models
- 73 dB noise level runs slightly louder than premium variable-capacity competitors
- Spec discrepancy lists both 4-ton and 5-ton capacity, creating confusion for sizing
Who Should Buy
Best For
Homeowners upgrading from 10-15 year old systems who want proven Goodman reliability without paying premium pricing for multi-stage cooling. Contractors installing replacement systems in existing homes appreciate the straightforward upflow/downflow configuration and PVC venting flexibility.
Consider Alternatives If
Buyers in very hot climates seeking maximum cooling efficiency should compare two-stage models, and noise-sensitive homeowners may prefer quieter premium units.
Installation
This upflow/downflow configuration fits most existing equipment spaces without major ductwork modifications. The A-coil design pairs with furnace cabinets vertically, taking up 30 inches tall by 21 inches wide by 21 inches deep. Suction line insulation of 1/2 inch thickness is provided up to 50 feet, covering most residential installations. Liquid and suction valve sizes (3/8 inch and 7/8 inch) match common residential refrigerant line standards. Electrical requirements of 115V single-phase 60Hz with 23.9-40 amp breaker sizing fall within standard residential panels.
Warranty & Reliability
Online Supply includes a 10-year parts warranty when you register the unit online after installation. This covers the compressor, heat exchanger, and other major components against manufacturing defects. Labor coverage during the warranty period depends on your local dealer agreement. The Goodman evaporator coil carries its own separate warranty documentation. Registration is straightforward but mandatory, so save your receipt and complete it within the required timeframe.
Specifications
| SKU | LS381183850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 45,500 |
| Heating BTU | 80,000 |
| Refrigerant | R410A |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | 10 Years 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 | 30" |
| Width | 21" |
| Depth | 21" |
| Resources | CAPT Installation Manual CAPT 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. |
| AHRI Certificate Number | 7424266 |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Furnace Efficiency / AFUE | 97% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 1600 |
| Configuration | Upflow / Downflow |
| Burner Stages | Modulating |
| Fuel Type | Propane, Natural 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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