Review
The Goodman 4-ton two-stage system positions itself as a practical mid-tier choice for homeowners tired of flat-rate utility bills and contractors seeking reliable installed equipment. This upflow configuration, rated at 96% AFUE for heating and 18 SEER2 for cooling, targets the sweet spot between entry-level and premium offerings. The system ships with a variable-speed ECM blower, scroll compressor, and two-stage operation on both furnace and condenser, addressing the efficiency expectations of modern energy codes.
Performance metrics tell a straightforward story. The furnace delivers 80,000 BTU of heating output at 96% efficiency, meaning nearly all fuel energy converts to usable heat rather than escaping through the flue. The air conditioner produces 47,000 BTU of cooling at 18 SEER2 with a scroll compressor and R410A refrigerant. Two-stage condenser operation reduces cycling during mild weather, lowering compressor wear and keeping runtime shorter. Maximum airflow of 1600 CFM supports proper delivery to 4-ton loads without oversizing ductwork.
Pros & Cons
Pros
- 96% AFUE furnace efficiency means minimal heat loss during combustion, lowering winter bills significantly
- 18 SEER2 air conditioner rating delivers strong cooling performance at 47,000 BTU with two-stage operation
- Variable-speed ECM blower motor adjusts to match demand, reducing runtime and electricity consumption
- Two-stage heating and cooling allow the system to run at reduced capacity during mild weather
- PVC/plastic exhaust flue requirement simplifies venting and reduces installation cost compared to metal ductwork
- Energy Star certified, qualifying for potential utility rebates in many regions
- 10-year warranty with online registration provides solid coverage for both furnace and evaporator coil
Cons
- Spec sheet lists conflicting tonnage (4 ton in title, 5 ton in specs), creating confusion about actual capacity
- 72 dB noise level runs louder than premium models, which may be noticeable during compressor operation
- No single-stage option available, so you cannot sacrifice efficiency for simplicity or cost savings
Who Should Buy
Best For
Contractors and homeowners replacing 10 to 15-year-old systems who prioritize efficiency and want measurable energy bill reductions. This system suits homes in temperate climates where both heating and cooling loads justify the two-stage investment.
Consider Alternatives If
Buyers seeking ultra-quiet operation or those in extreme climates where single-stage simplicity and lower upfront cost matter more than marginal efficiency gains.
Installation
Installation favors builders and technicians familiar with standard configurations. The upflow/horizontal design accepts right-side flue placement and uses plastic PVC exhaust venting, eliminating expensive metal B-vent requirements. Unit dimensions of 30 inches tall, 24.5 inches wide, and 21 inches deep fit standard closet and basement installations. Suction and liquid lines measure 1 1/8 inches and 3/8 inches respectively, with 50 feet of included insulation. Electrical needs include 208/230V single-phase 60 Hz service with 26.3 to 45 amp breaker sizing.
Warranty & Reliability
Goodman backs this system with 10 years of coverage when you complete online registration at purchase. The warranty covers both furnace and evaporator coil defects, protecting your heating and cooling investments equally. Ten years aligns with system lifespan expectations and provides meaningful peace of mind without requiring extended service contracts for basic mechanical failures.
Specifications
| SKU | LS381183850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 47,000 |
| Heating BTU | 80,000 |
| Refrigerant | R410A |
| Electrical | 208 / 230 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 72 |
| Weight (in lbs) | 48.000000 |
| Feature | Spec |
| AHRI Certificate Number | 7368835 |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Furnace Efficiency / AFUE | 96% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 1600 |
| Configuration | Upflow / Downflow |
| Flue Location | Right |
| Energy Star | Yes |
| Burner Stages | Two |
| Fuel Type | Propane, Natural Gas |
| Height | 30" |
| Width | 24.5" |
| 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. |
| Product Features | Two Stage Condenser |
| SEER1 (Efficiency) | 18 |
| Condenser Stages | Two Stage |
| Compressor Type | Scroll |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 1 1/8" |
| Max Breaker Size | 45amps |
| Min. Breaker Size | 26.3 amps |
| Tonnage | 5 Ton |
| Valve Type | Sweat |
| 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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