Review
Goodman systems occupy a unique market position, balancing affordability with respectable efficiency ratings. This 3-ton upflow model carries a 120,000 BTU heating capacity and 34,800 BTU cooling output in a compact footprint (30 inches high, 24.5 inches wide, 21 inches deep). At $634, it undercuts most competitors significantly while maintaining Energy Star certification. Online Supply's SKU LS38783850 comes pre-configured for upflow installations with plastic PVC exhaust flue compatibility, simplifying deployment in standard residential applications.
The efficiency numbers tell the real story here. The furnace delivers 97% AFUE, meaning 97 cents of every dollar spent on fuel becomes usable heat, a result of modulating burners that fine-tune output. Cooling efficiency reaches 16 SEER1, outperforming the advertised 15 SEER specification. The variable-speed ECM blower motor peaks at 2000 CFM and adjusts automatically, avoiding the energy waste of fixed-speed alternatives. This combination works especially well for homeowners facing extended heating seasons where furnace efficiency drives annual energy bills.
Pros & Cons
Pros
- 97% AFUE furnace efficiency means lower heating costs, especially valuable in cold climates running extended heating seasons
- 16 SEER1 cooling rating exceeds the advertised 15 SEER specification, delivering better summer efficiency than expected
- Modulating burner stages automatically adjust heating output rather than cycling on and off, improving comfort and reducing energy waste
- Variable speed ECM blower motor runs at optimal speeds for different seasons, enhancing efficiency and quieter operation
- Energy Star certified, meaning it meets EPA efficiency standards and may qualify for rebates and tax credits
- 10-year warranty with online registration provides reasonable protection for a system in this price range
Cons
- 73.5 dBA noise level is noticeably loud during compressor operation, potentially problematic in bedrooms or quiet zones
- Single-stage condenser compressor lacks the efficiency gains of multi-stage cooling, especially during partial-load conditions
- Scroll compressor type, while reliable, cannot match the advanced capacity modulation of newer inverter-driven designs
Who Should Buy
Best For
Contractors building spec homes or managing rental properties will appreciate the aggressive pricing and solid efficiency baseline. Homeowners in heating-dominant climates who value furnace efficiency over air conditioning performance will see faster payback on the 97% AFUE rating.
Consider Alternatives If
Homeowners prioritizing whisper-quiet operation or living in high-cooling climates should explore quieter, multi-stage systems despite higher upfront costs.
Installation
Installation requires standard HVAC connections: 3/8 inch liquid line, 7/8 inch suction line with 3/4 inch foam insulation (50-foot pre-insulated length included), and standard 115V single-phase 60Hz electrical service rated 18.7 to 30 amps. Upflow configuration suits basements and utility closets. Right-side flue location demands proper venting through plastic PVC exhaust piping. CAPT installation manual and specifications sheet walk technicians through connection steps, though experienced HVAC contractors will find this process straightforward.
Warranty & Reliability
Goodman provides 10 years of parts coverage upon online registration, a solid baseline warranty for this price tier. Coverage includes compressor failures, heat exchanger defects, and component failures, though labor costs remain the buyer's responsibility. Registration through Goodman's website activates the extended term within 30 days of purchase. For a $634 system, this warranty represents reasonable risk protection against manufacturing defects.
Specifications
| SKU | LS38783850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 34,800 |
| Heating BTU | 120,000 |
| 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 | 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. |
| 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 |
| Burner Stages | Modulating |
| 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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