Review
The Goodman CAPF3743C6 is a competent mid-market split system coil positioned for homeowners and contractors who need dependable cooling without flagship pricing. At $647, this 3.5 ton unit targets the sweet spot between budget equipment and high-efficiency premium models. It delivers 36,000 BTU cooling capacity, Energy Star certification, and a straightforward A-coil design that installers know well. The product sits firmly in Goodman's practical lineup, prioritizing value and proven performance over cutting-edge features.
Performance-wise, this coil achieves 16 SEER efficiency through a two-stage scroll compressor paired with a variable-speed ECM blower motor that adjusts to cooling demand. The 70.4 dB noise level keeps runtime sound reasonable for residential settings. Maximum airflow reaches 1,600 CFM, suitable for typical single-family homes. Refrigerant compatibility with R410A or R22 provides flexibility for retrofits or new installs. The two-stage design, while not inverter-driven, meaningfully reduces energy waste compared to single-stage competitors, translating to genuine utility bill reductions.
Pros & Cons
Pros
- 16 SEER efficiency rating exceeds minimum standards and qualifies for Energy Star, reducing cooling costs by 20-30% versus 13 SEER units
- Two-stage scroll compressor with variable-speed ECM blower motor adapts to demand, improving comfort and reducing runtime noise to 70.4 dB
- Flexible electric backup heat options range from 3 kW to 15 kW, accommodating diverse climate needs and retrofit scenarios
- Compact 21x21x30 inch footprint fits tight mechanical closets, upflow and downflow configurations cover most residential installations
- 10-year warranty with online registration provides meaningful coverage at this price tier
Cons
- 16 SEER is good but not exceptional, newer units reach 17-18 SEER at comparable pricing
- Requires 208/230V single-phase power, limiting options for older homes or facilities with different electrical service
- Heavier 63 lb weight and sweat connections demand professional installation, no DIY-friendly quick-connect options
Who Should Buy
Best For
Budget-conscious homeowners replacing aging 10-13 SEER systems who want measurable efficiency gains without premium costs. Contractors need reliable mid-market equipment for rental properties, multi-unit buildings, or customers prioritizing affordability over cutting-edge performance.
Consider Alternatives If
Homeowners in extremely hot climates seeking maximum cooling capacity should explore higher tonnage options, and those valuing top-tier efficiency should compare 17-18 SEER models.
Installation
This coil requires professional installation due to its 63 lb weight, sweat copper connections, and precise refrigerant charging. Upflow/downflow flexibility accommodates most ductwork configurations. The 3/8 inch liquid line and 7/8 inch suction line are standard sizes readily available. Electrical requirements are straightforward, 208/230V single-phase 60 Hz, though proper breaker sizing between 15 and 21.8 amps must be verified for your specific setup.
Warranty & Reliability
Goodman covers this unit for 10 years when you register online, a solid commitment at this price. Warranty covers compressor failure, refrigerant leaks, and manufacturing defects. Registration is quick and extends coverage significantly beyond the baseline 5-year parts warranty. This is meaningful protection for a coil carrying substantial thermal stress throughout its operating life.
Specifications
| SKU | CAPF3743C6 |
| Brand/Manufacturer | Goodman |
| Cooling BTU | 36,000 |
| Refrigerant | R410A or R22 |
| Electrical | 208 / 230 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 70.4 |
| Weight (in lbs) | 63.000000 |
| Feature | Spec |
| 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 | 15 amps |
| Min. Breaker Size | 21.8 amps |
| Tonnage | 3.5 Ton |
| Valve Type | Sweat |
| Height | 30" |
| Width | 21" |
| 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. |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 1,600 |
| Electric Backup Heat Capabilities (Optional) | 3 Kilowatts, 5 Kilowatts, 6 Kilowatts, 8 Kilowatts, 10 Kilowatts, 15 Kilowatts |
| Configuration | Upflow / Downflow |
| Liquid Line | 3/8" |
| Suction Line | 7/8" |
| Style | A-Coil |
Frequently Asked Questions
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