Review
The Goodman CAPF3642D6 is a competent mid-tier system that bridges the gap between budget equipment and premium solutions. It pairs an 80,000 BTU furnace with a 3-ton air conditioning unit, offering dual-stage capability on both heating and cooling. At $2761, this package targets homeowners in moderate climates who need balanced comfort without premium pricing. The upflow configuration and variable speed blower make it flexible for various installation scenarios.
Performance numbers show respectable efficiency for the price. Cooling delivers 36,000 BTU at 16 SEER with two-stage compressor operation and R410A refrigerant compatibility. Heating reaches 80% AFUE across two burner stages, with variable speed blower handling up to 2000 CFM. The scroll compressor is proven durable in Goodman equipment. Noise levels hit 70.4 dB during operation, which is acceptable but noticeable compared to high-efficiency alternatives.
Pros & Cons
Pros
- 16 SEER cooling efficiency meets Energy Star standards and delivers meaningful savings on AC bills
- Two-stage operation on both furnace and condenser reduces cycling and improves comfort
- Variable speed blower motor optimizes airflow at 2000 CFM maximum, reducing energy waste
- 80,000 BTU heating capacity with two burner stages handles cold snaps without short cycling
- 10-year warranty with online registration provides solid long-term protection
Cons
- 80% AFUE is midrange at best, leaving efficiency gaps compared to 95%+ high-efficiency models
- Metal exhaust flue requirement means older homes may need venting modifications
- 70.4 dB noise level is moderately loud during peak operation cycles
Who Should Buy
Best For
Homeowners in temperate climates replacing aging equipment who value balanced cooling and heating without spending on premium efficiency. Contractors installing systems in moderate-demand regions where two-stage operation provides noticeable comfort improvements over single-stage alternatives.
Consider Alternatives If
Anyone in extremely cold climates needing serious heating capacity, or homes with high cooling demands where 16 SEER feels insufficient for payback timelines.
Installation
Installation is straightforward for licensed HVAC technicians. The system requires 208/230V single-phase 60 Hz power with a 21.8 to 35-amp breaker, standard for most residential installations. Metal exhaust venting is mandatory. The A-coil design works well with upflow configurations. Refrigerant lines use 3/8 inch liquid and 7/8 inch suction sizing. AHRI certificate 204633307 confirms proper equipment matching.
Warranty & Reliability
Goodman provides 10 years of parts coverage when you register the unit online, which is a legitimate perk that many budget brands skip. This protects against compressor failure, heat exchanger issues, and component defects. The Evaporator Coil Warranty offers additional specific coverage. Online registration is simple and worth the five minutes required to activate coverage.
Specifications
| SKU | CAPF3642D6 |
| Brand/Manufacturer | Goodman |
| Cooling BTU | 36,000 |
| Heating BTU | 80,000 |
| 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) | 29.000000 |
| 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 | 22" |
| 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 | 3.5 Ton |
| Valve Type | Sweat |
| Liquid Line | 3/8" |
| Suction Line | 7/8" |
| Style | A-Coil |
Frequently Asked Questions
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