Review
The Goodman 1.5-ton 15 SEER / 80% AFUE split system represents the entry-level efficiency tier in the current market. It delivers the baseline performance most contractors specify for replacement jobs where budget constraints dominate the conversation. At 60,000 BTU heating capacity and 18,000 BTU cooling output, this unit handles moderate residential loads in temperate climates. The horizontal configuration and compact footprint make it practical for attic or basement placement where traditional vertical equipment cannot fit. This is honest equipment: efficient enough to qualify for many utility rebates, not efficient enough to impress engineers focused on long-term operating cost optimization.
Performance metrics tell a practical story. The two-stage burner modulates between full and partial fire, reducing heating cycles compared to single-stage competitors. Maximum airflow reaches 1,200 CFM via the multi-speed blower, accommodating ducted installations up to 50 feet of line set with proper refrigerant management. The 80% AFUE rating means 20 cents of every heating dollar exits the flue as waste heat, a meaningful consideration in heating-dominant regions. Cooling efficiency at 15 SEER sits comfortably above baseline but below high-efficiency models. Electrical requirements are modest: 208/230V single phase at 12.4 to 20 amps, fitting most residential panels without service upgrades. The scroll compressor is proven technology, though not cutting-edge.
Pros & Cons
Pros
- ENERGY STAR certified with 80% AFUE and 15 SEER rating for qualified efficiency rebates in many regions
- Two-stage burner enables modulating heating, reducing short-cycling and improving comfort compared to single-stage alternatives
- High-efficiency multi-speed blower motor with 1,200 CFM capacity allows flexible installation in tight spaces
- Horizontal configuration ideal for attic or basement installations where vertical ductwork is impractical
- 10-year warranty with online registration provides reasonable peace of mind for a budget-tier system
Cons
- 80% AFUE lags behind high-efficiency furnaces rated 95%+ AFUE, costing more to operate annually in heating-heavy climates
- Spec sheet shows conflicting tonnage data (1.5-ton cooling listed but specs reference 3-ton), creating confusion about actual capacity
- 71.5 dBA noise level is moderately loud during compressor operation and may be noticeable in finished living spaces
- R410A or R22 refrigerant flexibility suggests older design not optimized for current low-GWP refrigerants
Who Should Buy
Best For
Contractors replacing end-of-life systems for cost-conscious homeowners in climates where heating and cooling loads are balanced. This system is particularly suited for retrofit installations where minimal equipment footprint and horizontal mounting are priorities.
Consider Alternatives If
Homeowners in cold climates prioritizing low operating costs should invest in 95% AFUE furnaces, and those in humid regions may want SEER2 16+ systems for enhanced dehumidification efficiency.
Installation
This unit requires metal flue exhaust piping, standard for gas furnaces but verify existing ductwork compatibility before purchase. Horizontal mounting demands secure framing in attics or basements to prevent vibration noise. The 71.5 dBA operating sound level may require additional insulation if located near bedrooms. Refrigerant lines need proper sizing (3/8-inch liquid, 3/4-inch suction) and 3/4-inch insulation to prevent efficiency loss. Professional installation is strongly recommended to ensure proper charge and ductwork sealing.
Warranty & Reliability
Coverage extends 10 years when registered online, covering defects in manufacturing but excluding wear items like capacitors and contactors. This matches industry standard for budget-tier equipment. Registration is non-negotiable for the full term, so document your proof of purchase immediately. Labor costs for repairs fall on the homeowner, making extended service plans worth evaluating for older homes with uncertain component longevity.
Specifications
| SKU | LS38343850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 18,000 |
| Heating BTU | 60,000 |
| Refrigerant | R410A or R22 |
| Electrical | 208 / 230 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 71.5 |
| Weight (in lbs) | 22.000000 |
| Feature | Spec |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Metal |
| Furnace Efficiency / AFUE | 80% |
| Blower Motor | High Efficiency Multi-Speed |
| Maximum CFM | 1200 |
| Configuration | Horizontal |
| Burner Stages | Two |
| Fuel Type | Gas |
| Height | 21.125" |
| Width | 17.5" |
| Depth | 26" |
| 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. |
| Replaces | GSX16S181 |
| Energy Star | Yes |
| SEER1 (Efficiency) | 16 |
| Condenser Stages | Single Stage |
| Compressor Type | Scroll |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 3/4" |
| Max Breaker Size | 20 amps |
| Min. Breaker Size | 12.4 amps |
| Tonnage | 3 Ton |
| Liquid Line | 3/8" |
| Suction Line | 3/4" |
| Style | A-Coil |
| Suction Line Insulation Thickness | 3/4" |
| Length | 50 feet |
Frequently Asked Questions
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