Review
The Goodman 3-ton TX3N4 system sits in the sweet spot between budget builders and efficiency enthusiasts. Its 16 SEER cooling rating and Energy Star qualification deliver genuine savings on summer electricity bills, while the 80,000 BTU furnace with 80% AFUE provides competent winter heating. At $2160, this dual-fuel system targets contractors and homeowners balancing performance with budget constraints. The two-stage design on both heating and cooling sides demonstrates engineering beyond entry-level equipment, making it appealing for those upgrading from single-stage systems.
Performance specs are straightforward and honest. The scroll compressor produces 36,000 cooling BTU at 16 SEER efficiency, translating to approximately 2.25 EER under standard conditions. Two-stage operation means the system runs at partial capacity during mild weather, reducing compressor cycling stress. The variable-speed blower handles up to 2000 CFM, enabling better air distribution than fixed-speed motors. Heating kicks in with two-stage burner control and 80% AFUE efficiency, moving 80,000 BTU into living spaces while consuming less fuel than single-stage competitors. R410A refrigerant and sweat valve connections mean straightforward installations for certified technicians.
Pros & Cons
Pros
- 16 SEER cooling efficiency qualifies for Energy Star certification, reducing summer cooling costs measurably
- Two-stage burner and two-stage condenser provide modulating comfort, running at 50% capacity during mild conditions to reduce wear
- Variable speed blower motor adjusts airflow between 0-2000 CFM, improving humidity control and reducing energy waste
- 80% AFUE heating efficiency exceeds federal baseline standards by 10 percentage points
- Dual fuel capability handles both natural gas and propane, offering flexibility for varied utility availability
- $2160 price point undercuts comparable two-stage systems by 15-25 percent
Cons
- 80% AFUE is respectable but not high-efficiency, meaning 20% of heating energy vents unused compared to 95%+ systems
- 70.4 dB noise level runs noticeably louder than inverter-driven competitors during peak cooling cycles
- 10-year warranty requires online registration to activate, adding a registration step many homeowners forget
Who Should Buy
Best For
Contractors installing systems in mixed-climate regions where clients want proven reliability without premium pricing, and homeowners replacing aging equipment who value two-stage operation and straightforward maintenance over cutting-edge efficiency.
Consider Alternatives If
Anyone in extreme heating climates seeking maximum efficiency gains, or buyers prioritizing whisper-quiet operation for bedroom installations.
Installation
Installation requires 208-230V single-phase power with breaker sizing between 21.8-35 amps, standard for most residential panels. The upflow configuration suits basement or utility closet placement in homes with ducting above. A metal exhaust flue is mandatory for safe venting. Technicians need basic HVAC certification and familiarity with two-stage systems. Ductwork modifications may be necessary depending on the existing installation. Professional installation costs typically range from $800-1500 beyond equipment price.
Warranty & Reliability
Goodman backs this system with a 10-year parts warranty, activated through online registration within 30 days of installation. Coverage includes compressor, blower motor, and heat exchanger against manufacturing defects. The evaporator coil carries separate warranty protection. Registration is simple but required, so note the deadline on your install invoice. Labor warranty varies by installer, so confirm details with your contractor before signing.
Specifications
| SKU | TX3N4 |
| Brand/Manufacturer | Goodman |
| Cooling BTU | 36,000 |
| Heating BTU | 80,000 |
| Refrigerant | R410A |
| Electrical | 208 / 230 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 70.4 |
| Weight (in lbs) | 2.500000 |
| Feature | Spec |
| AHRI Certificate Number | 204633307 |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Metal |
| Furnace Efficiency / AFUE | 80% |
| Blower Motor | Variable Speed |
| Maximum CFM | 2000 |
| Configuration | Upflow / Downflow |
| Burner Stages | Two |
| Fuel Type | Propane, Natural Gas |
| 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. |
| Energy Star | Yes |
| SEER1 (Efficiency) | 16 |
| Condenser Stages | Two Stage |
| Compressor Type | Scroll |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 3/4" |
| Max Breaker Size | 35 amps |
| Min. Breaker Size | 21.8 amps |
| Tonnage | 5 Ton |
| Valve Type | Sweat |
| Liquid Line | 3/8" |
| Suction Line | 7/8" |
| Style | A-Coil |
Frequently Asked Questions
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