Review
Goodman's 3-ton gas furnace and air conditioner system represents the contractor's sweet spot: genuine efficiency gains packaged at accessible pricing. The 97% AFUE rating and Energy Star certification place this unit solidly above entry-level commodity equipment, while the $634 price tag keeps it competitive for budget-conscious renovations. The modulating burner and variable-speed blower address real-world comfort issues that plague stripped-down models, making this a practical choice for homeowners tired of temperature swings.
Performance specs reveal thoughtful engineering. The 120,000 BTU heating output with modulating stages avoids the wasteful cycling of single-stage competitors. Cooling delivers 36,000 BTU at 16 SEER2 efficiency through a scroll compressor with two-stage operation and R410A refrigerant. The ECM blower reaches 2,000 CFM maximum while consuming less power than PSC motors. Electrical requirements fall within standard breaker ranges (21.8 to 35 amps at 208/230V), simplifying retrofit installations without panel upgrades.
Pros & Cons
Pros
- 97% AFUE furnace efficiency minimizes heating fuel waste, critical for propane and natural gas applications
- 16 SEER2 cooling efficiency qualifies for Energy Star certification and most utility rebates
- Modulating burner adjusts output in stages rather than cycling on/off, reducing temperature swings
- Variable-speed ECM blower motor runs quieter and uses less electricity than fixed-speed alternatives
- Two-stage compressor and scroll design provide reliable 36,000 BTU cooling for 3-ton applications
- PVC/plastic flue compatibility eliminates costly chimney modifications on many retrofit jobs
Cons
- 70.4 dBA noise level runs louder than premium brands, noticeable during compressor operation
- SEER2 rating of 16 trails high-efficiency competitors at 18-20, limiting rebate potential in some programs
- 10-year warranty requires online registration, and parts-only coverage leaves labor gaps on older units
Who Should Buy
Best For
Homeowners replacing 10-15 year old systems on tight budgets and contractors installing spec systems in new construction or rental properties. This unit rewards high heating demand climates where 97% AFUE translates to measurable monthly savings.
Consider Alternatives If
Anyone seeking cutting-edge efficiency ratings above 18 SEER2, or buyers in low-heating-demand climates where furnace payback periods exceed 10 years.
Installation
Setup favors experienced installers familiar with Goodman's upflow/downflow configuration. The 30 by 24.5 by 21 inch footprint fits most furnace closets, and the right-positioned flue works with existing PVC ducting on many homes. Variable-speed motors require modern thermostat communication, potentially triggering controls upgrades. Refrigerant line sizing (3/8 inch liquid, 7/8 inch suction) follows standard practices, though proper evacuation and charging remain critical for warranty coverage.
Warranty & Reliability
Goodman backs this system with 10 years of coverage upon online registration. The warranty protects against manufacturer defects but excludes labor and accessory components. Registration takes minutes online and ensures claim processing without hassle. This coverage sits midrange for the industry, offering meaningful protection without the extended warranties some premium brands provide.
Specifications
| SKU | CAPT3743D4 |
| Brand/Manufacturer | Goodman |
| Cooling BTU | 36,000 |
| Heating BTU | 120,000 |
| Refrigerant | R410A |
| Electrical | 208 / 230 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 70.4 |
| Weight (in lbs) | 75.000000 |
| Feature | Spec |
| AHRI Certificate Number | 7424268 |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Product Features | Rebate Available |
| Furnace Efficiency / AFUE | 97% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 2000 |
| Configuration | Upflow / Downflow |
| Flue Location | Right |
| Energy Star | Yes |
| Burner Stages | Modulating |
| 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. |
| 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 | 3.5 Ton |
| Valve Type | Sweat |
| Liquid Line | 3/8" |
| Suction Line | 7/8" |
| Style | A-Coil |
Frequently Asked Questions
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