Review
The Goodman 3-ton horizontal gas furnace delivers high-efficiency heating at an aggressive price point that undercuts most comparable models. Rated at 97% AFUE and equipped with a modulating burner, this unit addresses the primary complaint contractors have about budget furnaces: wasted fuel. The horizontal configuration makes it ideal for basements, crawlspaces, and attics where vertical clearance is limited. At 89 dollars, this represents unusual value in the high-efficiency furnace segment where 95% AFUE units typically cost significantly more.
Performance specs are genuinely strong. The furnace delivers 60,000 BTU of heating output with a modulating burner that adjusts in stages rather than cycling on and off. The variable-speed ECM blower motor ramps to 1,200 CFM maximum but runs at reduced speeds during partial-load conditions, cutting standby energy waste. Cooling capacity measures 35,000 BTU with a two-stage condenser and R410A refrigerant. The plastic PVC exhaust flue requirement simplifies installation compared to rigid metal venting, particularly valuable in retrofit applications.
Pros & Cons
Pros
- 97% AFUE efficiency rating means only 3% of fuel energy is wasted, translating to lower monthly heating bills
- Modulating burner adjusts heat output in increments rather than simple on-off cycling, improving comfort and efficiency
- Variable-speed ECM blower motor runs only as hard as needed, reducing energy consumption and noise versus fixed-speed designs
- Two-stage condenser supports both the AC and heating operation with better temperature modulation
- PVC exhaust capability simplifies installation in tight spaces where metal flue venting is problematic
- 10-year warranty with online registration provides solid coverage for major components
Cons
- SKU references Goodman branding but ships from Online Supply, which may complicate warranty claims in some regions
- 71 dB noise level is moderately loud during heating cycles, noticeable in open floor plans
- Spec sheet lists both 16 SEER and 18 SEER ratings, creating clarity issues around actual cooling efficiency
Who Should Buy
Best For
Homeowners in heating-dominant climates upgrading older 80-85% AFUE furnaces will see measurable energy savings within 3-5 years. Contractors building spec homes or retrofitting systems appreciate the horizontal configuration and low cost without sacrificing efficiency ratings.
Consider Alternatives If
Buyers prioritizing ultra-quiet operation or living in areas with limited Goodman service support should explore alternative brands with stronger local dealer networks.
Installation
Horizontal installation requires standard ductwork connections and electrical service at 208/230V single-phase 60 Hz. Breaker sizing demands between 21.3 and 35 amps depending on configuration. The unit weighs 30 pounds and measures 21 by 21.125 by 26 inches, fitting most horizontal-mount spaces. Installation manual documentation is available in PDF format. Suction and liquid line sizes are 7/8 and 3/8 inches respectively with 50-foot maximum line length.
Warranty & Reliability
The 10-year parts warranty requires online registration and covers manufacturing defects in the heat exchanger, compressor, and major components. This is standard coverage for Goodman equipment but depends on dealer registration accuracy. Actual coverage terms follow Goodman's published warranty guidelines, which may include exclusions for improper installation or maintenance neglect.
Specifications
| SKU | LS38783850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 35,000 |
| Heating BTU | 60,000 |
| Refrigerant | R410A |
| Electrical | 208 / 230 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 71 |
| Weight (in lbs) | 30.000000 |
| Feature | Spec |
| AHRI Certificate Number | 7424269 |
| Airflow Direction | Downflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Product Features | Two Stage Condenser |
| Furnace Efficiency / AFUE | 97% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 1200 |
| Configuration | Horizontal |
| Energy Star | Yes |
| Burner Stages | Modulating |
| Fuel Type | Propane, Natural Gas |
| Height | 21" |
| Width | 21.125" |
| Depth | 26" |
| 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. |
| 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 | 3.5 Ton |
| Valve Type | Sweat |
| 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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