Review
The Goodman 3-ton gas furnace and air conditioner system positioned at $89 represents solid mid-market value for contractors and homeowners building complete HVAC solutions on budget constraints. Goodman maintains consistent presence in value segments without sacrificing core engineering. This upflow configuration suits standard basement or closet installations across residential applications. The system carries AHRI certification number 7368842 and qualifies for Energy Star designation, signaling compliance with current efficiency standards. Straightforward specifications and proven component selection make this an accessible option for replacement or new construction projects.
Performance metrics show genuine heating capability with 120,000 BTU output and 96% AFUE efficiency, meaning 96 cents of every gas dollar converts to usable heat. The variable-speed ECM blower motor runs at 2000 CFM maximum and adjusts output intelligently, reducing energy waste during mild heating demand. Cooling delivers 35,000 BTU with R410A refrigerant across a scroll compressor paired with two-stage condenser operation. The 17 SEER cooling efficiency balances performance against cost. Electrical requirements are manageable at 208/230V, 1-phase, 60Hz with breaker sizing between 21.9 and 35 amps for standard residential panels.
Pros & Cons
Pros
- 96% AFUE furnace exceeds standard requirements and qualifies for many utility rebates, reducing actual cost below $89
- Variable-speed ECM blower motor improves comfort by ramping airflow gradually, reducing temperature swings and noise
- Two-stage burner and condenser provide flexibility for part-load operation, enhancing efficiency on mild days
- Flexible fuel compatibility with both natural gas and propane gives installation flexibility across regions
- PVC exhaust flue requirement simplifies venting and reduces corrosion concerns versus metal flues
Cons
- SEER rating listed as 18 appears inconsistent with 17 SEER marketing claim, creating specification confusion
- 71 dB noise level is audible during operation, particularly during compressor staging
- SKU TX3N4 tonnage specs conflict (marketed as 3-ton, specs show 5-ton), requiring dealer clarification before purchase
Who Should Buy
Best For
Homeowners in cold-weather climates replacing aging furnaces should prioritize this unit for its high AFUE and long heating season payback. Contractors seeking reliable value-tier equipment for primary heating in gas-dependent markets will appreciate the two-stage design and straightforward installation requirements.
Consider Alternatives If
Buyers in mild climates where cooling dominates annual runtime or those seeking whisper-quiet operation at minimum capacity should evaluate premium units with better sound ratings.
Installation
Installation demands PVC or plastic exhaust flue venting, which simplifies material sourcing and reduces corrosion maintenance versus older metal venting. The upflow/downflow configuration adapts to basement, closet, or horizontal installations with minimal ductwork redesign. Unit dimensions (30 inches tall, 24.5 inches wide, 21 inches deep) and 2,500 pound weight require standard equipment and two technicians for safe positioning. Refrigerant line sizing uses industry-standard 3/8 inch and 7/8 inch sweat connections, supported by straightforward CAPF installation documentation.
Warranty & Reliability
Goodman provides 10-year parts coverage when you register the unit online, a standard commitment for mid-tier equipment. This extends protection against compressor failure, heat exchanger defects, and blower motor issues. Registration is straightforward through Goodman's website. No labor coverage exists beyond parts, so service calls remain homeowner responsibility. The evaporator coil carries separate warranty coverage documented in included materials.
Specifications
| SKU | TX3N4 |
| Brand/Manufacturer | Goodman |
| Cooling BTU | 35,000 |
| Heating BTU | 120,000 |
| Refrigerant | R410A |
| Electrical | 208 / 230 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 71 |
| Weight (in lbs) | 2.500000 |
| Feature | Spec |
| AHRI Certificate Number | 7368842 |
| Airflow Direction | Upflow/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 |
| Energy Star | Yes |
| 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. |
| SEER1 (Efficiency) | 18 |
| Condenser Stages | Two Stage |
| Compressor Type | Scroll |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 7/8" |
| Max Breaker Size | 35 amps |
| Min. Breaker Size | 21.9 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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