Review
Goodman's 3.5 Ton dual-fuel system represents solid mid-range equipment for contractors and homeowners balancing upfront cost against long-term utility savings. This downflow configuration supports flexible installation in basements, attics, and crawlspaces where space constraints challenge traditional upflow units. The combination of 96% AFUE heating efficiency and 16 SEER1 cooling rating positions it competitively against comparable systems from Rheem, Lennox, and Carrier at similar price points.
The furnace delivers 80,000 BTU heating output with two-stage burner capability, allowing lower fire operation during milder weather. The AC condenser produces 34,800 BTU cooling at peak capacity using R410A refrigerant. Variable-speed ECM blower reaches 1,600 CFM maximum airflow and modulates intelligently, reducing energy waste versus single-speed motors. The scroll compressor is proven, reliable technology, though the single-stage design means full-capacity operation even on mild days.
Pros & Cons
Pros
- 96% AFUE furnace efficiency significantly reduces natural gas or propane consumption compared to older 80-90% models
- 16 SEER1 cooling rating with Energy Star certification beats standard 13-14 SEER equipment
- Variable-speed ECM blower motor adjusts to actual heating/cooling demand, reducing runtime and noise
- Two-stage burner allows low-fire operation during mild weather for better comfort and efficiency
- 10-year warranty with online registration covers parts and labor on major components
- Compact 30-inch height works in tight crawlspaces or basements with limited vertical clearance
Cons
- Listing shows 3 Ton capacity in title but specs show 3.5 Ton, creating potential confusion on actual system size
- 73.5 dB noise level is moderate to loud during cooling cycles, noticeable in quiet residential settings
- Single-stage compressor means AC runs at full capacity even on mild 70-75 degree days, less efficient than variable-capacity alternatives
- Requires proper plastic/PVC exhaust flue venting, not compatible with metal B-vent systems
Who Should Buy
Best For
Homeowners in colder or mixed climates needing both efficient heating and reliable AC who have basement or crawlspace installation space. Contractors upgrading systems in existing homes where downflow or horizontal airflow configuration matches ductwork layout.
Consider Alternatives If
Buyers seeking ultra-quiet operation should compare variable-capacity compressors, as this single-stage unit hits 73.5 dB during full cooling cycles.
Installation
This downflow unit requires standard split-system installation with proper lineset sizing. The 3/8-inch liquid line and 7/8-inch suction line arrive with 50 feet of insulation included. Electrical needs are straightforward: 115V single-phase 60 Hz service with 18.7 to 30-amp breaker. Plastic or PVC exhaust venting is mandatory for compliance. Most installations take 4-8 hours for experienced HVAC technicians.
Warranty & Reliability
The 10-year parts warranty activates upon online registration after purchase. Coverage includes compressor, heat exchanger, and sealed components. Labor coverage depends on retailer or contractor offering. This warranty is competitive but trails extended options from Carrier and Lennox. Registration is simple but required, so save documentation immediately.
Specifications
| SKU | LS38783850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 34,800 |
| Heating BTU | 80,000 |
| Refrigerant | R410A |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 73.5 |
| Weight (in lbs) | 30.000000 |
| Feature | Spec |
| Energy Star | Yes |
| SEER1 (Efficiency) | 16 |
| Condenser Stages | Single Stage |
| Compressor Type | Scroll |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 7/8" |
| Max Breaker Size | 30 amps |
| Min. Breaker Size | 18.7 amps |
| Tonnage | 3.5 Ton |
| Height | 30" |
| Width | 21" |
| 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. |
| AHRI Certificate Number | 7368843 |
| Airflow Direction | Downflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Product Features | Rebate Available |
| Furnace Efficiency / AFUE | 96% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 1600 |
| Configuration | Upflow / Downflow |
| Burner Stages | Two |
| Fuel Type | Propane, Natural Gas |
| Liquid Line | 3/8" |
| Suction Line | 7/8" |
| Style | A-Coil |
| Suction Line Insulation Thickness | 3/4" |
| Length | 50 feet |
Frequently Asked Questions
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