Review
The Goodman 3 Ton 15 SEER 96% AFUE system occupies the sweet spot between budget hardware and high-efficiency equipment. Priced at $3551, it pairs a 120,000 BTU furnace with a 34,800 BTU cooling unit, making it suitable for homes ranging from 1200 to 1600 square feet depending on climate and insulation. This downflow configuration matches existing ductwork in many homes, reducing installation complexity and costs that can impact overall system value.
Efficiency numbers tell the real story. The 96% AFUE rating means nearly all fuel converts to usable heat, a meaningful jump from legacy 80-85% units still running in many homes. The 16 SEER1 cooling rating exceeds the stated 15 SEER baseline, delivering approximately 15-20% better cooling efficiency than standard 13 SEER models. Two-stage burners and an ECM variable-speed blower motor work together to modulate output, reducing short-cycling losses and keeping utility costs down during mild weather.
Pros & Cons
Pros
- 96% AFUE heating efficiency reduces natural gas consumption significantly compared to 80-90% models
- 16 SEER1 cooling rating exceeds the 15 SEER baseline, delivering better AC efficiency year-round
- Two-stage burner modulates heating output for improved comfort and lower utility bills
- Variable-speed ECM blower motor adjusts airflow from 0 to 2000 CFM, reducing energy waste during partial-load operation
- 10-year warranty with online registration provides solid protection for parts and labor
Cons
- Single-stage compressor limits cooling efficiency compared to two-stage or variable-capacity models at higher price points
- 73.5 dB noise level is moderately loud, particularly during high-cooling demand in summer
- Specification sheet lists both R410A and R22 refrigerant compatibility, creating potential confusion during service
Who Should Buy
Best For
Homeowners replacing 15+ year old furnace-AC combos who want measurable efficiency gains without paying for premium-tier equipment. Contractors installing systems in homes with existing downflow ducts will appreciate the straightforward configuration and installation compatibility.
Consider Alternatives If
Anyone prioritizing whisper-quiet operation or maximum efficiency should explore two-stage compressor models, as this unit's single-stage cooling and 73.5 dB output may disappoint.
Installation
Downflow configuration suits homes where ducts drop through a basement or crawlspace. The unit accepts both natural gas and propane, simplifying fuel-source adaptations. Liquid and suction line sizes of 3/8 inch and 7/8 inch respectively are industry standard, compatible with most existing refrigerant piping. Plastic PVC exhaust flue is required for venting, eliminating costly metal flue modifications in many retrofit applications.
Warranty & Reliability
Online registration unlocks 10 years of parts and labor coverage, a competitive offering for mid-tier equipment. This duration provides genuine peace of mind for compressor and heat exchanger failures. However, coverage details depend on fulfilling registration within the required timeframe, so homeowners must prioritize this step immediately after installation to avoid claim denials.
Specifications
| SKU | LS38783850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 34,800 |
| Heating BTU | 120,000 |
| Refrigerant | R410A or R22 |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 73.5 |
| Weight (in lbs) | 30.000000 |
| Feature | Spec |
| 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 | 30 amps |
| Min. Breaker Size | 18.7 amps |
| Tonnage | 3.5 Ton |
| Height | 30" |
| Width | 24.5" |
| Depth | 21" |
| Resources | CAPF Installation Manual CAPF 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 | 7368845 |
| Airflow Direction | Downflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Product Features | Rebate Available |
| Furnace Efficiency / AFUE | 96% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 2000 |
| Configuration | Upflow / Downflow |
| Burner Stages | Two |
| Fuel Type | Propane, Natural Gas |
| Liquid Line | 3/8" |
| Suction Line | 7/8" |
| Style | A-Coil |
| Suction Line Insulation Thickness | 3/4" |
| Length | 50 feet |
Frequently Asked Questions
Affiliate disclosure: IndustrialRank earns a commission on qualifying purchases at no extra cost to you. We only recommend products we have independently reviewed.