Review
The Goodman 3-ton horizontal system represents a practical mid-range choice in the HVAC equipment market, blending solid efficiency with straightforward installation. At $3225, this unit sits in reasonable territory for homeowners upgrading from 10+ year old equipment or contractors standardizing on reliable Goodman platforms. The horizontal configuration specifically targets installations where vertical space is limited, such as attics with low clearance or basement installations where headroom above a furnace is restricted.
Performance numbers tell a compelling story for heating-focused climates. The furnace achieves 96% AFUE with dual-stage burners, meaning nearly every dollar spent on gas translates to usable heat. The cooling side delivers 35,000 BTU from a two-stage scroll compressor with 18 SEER1 rating, though the 71 dB noise level indicates moderate compressor activity during peak cooling. Variable-speed ECM blower technology modulates up to 2000 CFM, avoiding the energy waste of oversized constant-speed motors and improving dehumidification on humid days.
Pros & Cons
Pros
- 96% AFUE furnace efficiency means lower heating bills, especially valuable in cold climates where furnace run time is substantial
- 18 SEER1 cooling rating and two-stage compressor provide quiet operation at 71 dB and better humidity control than single-stage units
- Variable-speed ECM blower motor adjusts airflow up to 2000 CFM, reducing energy waste during partial-load conditions
- Horizontal A-coil configuration fits directly above furnaces in basements or attics, eliminating separate installation headaches
- Two-stage gas burners support both natural gas and propane, offering fuel flexibility for rural or off-grid properties
Cons
- Specs show conflicting tonnage claims: product title states 3 ton but specs list 5 ton cooling capacity, creating confusion about actual system size
- 71 dB noise level is moderate but noticeable, particularly during high-stage cooling cycles in quiet residential settings
- PVC exhaust flue requirement limits installation flexibility in older homes with existing masonry chimneys requiring retrofitting
Who Should Buy
Best For
Homeowners in heating-dominant climates who want maximum furnace efficiency and can accommodate a horizontal coil arrangement in attics or crawl spaces. Contractors replacing outdated systems with tight spatial constraints will appreciate the compact 24.5 inch height and straightforward sweat connection valve design.
Consider Alternatives If
Anyone needing a vertical upflow coil configuration or living where ductwork precludes downflow/horizontal airflow direction should look at alternative Goodman models designed for different orientations.
Installation
Installation requires standard HVAC practices: refrigerant line connections use 3/8 inch liquid and 7/8 inch suction lines with 3/4 inch foam insulation included for 50 feet of lineset. Electrical demands fall within typical home service specifications at 115V, 1-phase, 60Hz with 21.3 to 35 amp breaker sizing. PVC exhaust flue installation is mandatory and straightforward in new construction but may require venting modifications in homes with existing masonry chimneys. Sweat valve connections demand soldering skills or professional installation.
Warranty & Reliability
Online Supply backs this unit with a 10-year parts and labor warranty upon registration, which is competitive for equipment at this price point. The registration requirement is standard but non-negotiable for claim eligibility. Goodman's evaporator coil carries separate warranty coverage detailed in supplied documentation. Ten years of coverage provides solid protection against compressor failure and heat exchanger defects, though costs after year five may justify replacement over repair in some scenarios.
Specifications
| SKU | LS38783850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 35,000 |
| Heating BTU | 120,000 |
| Refrigerant | R410A or R22 |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 71 |
| Weight (in lbs) | 30.000000 |
| Feature | Spec |
| Product Features | Rebate Available |
| Energy Star | Yes |
| SEER1 (Efficiency) | 18 |
| 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 | 21.3 amps |
| Tonnage | 5 Ton |
| Valve Type | Sweat |
| Height | 24.5" |
| Width | 26" |
| Depth | 21.125" |
| Resources | CHPF Installation Manual CHPF 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 | 7368845 |
| Airflow Direction | Downflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Furnace Efficiency / AFUE | 96% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 2000 |
| Configuration | Horizontal |
| 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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