Review
The Goodman 3.5-ton horizontal furnace and air conditioner system occupies a practical middle ground in the HVAC market. Priced at $3,136, it competes against budget models while incorporating efficiency features typically found in higher-end equipment. The horizontal configuration specifically addresses installer pain points, making it valuable for retrofit work in space-constrained environments. Online Supply backs this unit with ENERGY STAR certification and a 10-year warranty, signaling confidence in component durability.
Performance metrics tell a compelling efficiency story. The furnace achieves 96% AFUE using a two-stage burner that modulates heating output, reducing cycling losses. Cooling capacity rates at 42,000 BTU (3.5 tons nominal), though the spec sheet inconsistently lists 5-ton tonnage elsewhere. The variable-speed ECM blower motor runs at up to 2,000 CFM, automatically adjusting airflow to match heating and cooling loads. This approach cuts electricity consumption compared to single-speed alternatives. R410A refrigerant and scroll compressor technology provide reliable, efficient cooling delivery.
Pros & Cons
Pros
- 96% AFUE furnace efficiency reduces fuel consumption and monthly heating costs noticeably
- Variable-speed ECM blower motor adjusts to actual heating demand, improving comfort and reducing runtime
- Horizontal configuration fits tight spaces where traditional upflow units won't fit
- Two-stage burner and scroll compressor provide modulated heating and cooling
- ENERGY STAR qualified with 10-year parts warranty upon registration
- Accepts both natural gas and propane, offering fuel flexibility for rural installations
Cons
- SEER rating shows 16 in specs but headline claims 15 SEER, creating labeling inconsistency
- Single-stage condenser limits cooling modulation compared to two-stage alternatives
- Goodman brand carries lower contractor reputation than Lennox or Carrier in some markets
- 73 dB noise level runs moderately loud during operation
Who Should Buy
Best For
Contractors installing systems in attics, crawlspaces, or basements where horizontal orientation is mandatory, and homeowners seeking efficient gas furnaces without premium pricing. Works particularly well in climates with 40-60 heating degree days where furnace runtime justifies efficiency investment.
Consider Alternatives If
Homeowners prioritizing quiet operation should evaluate this 73 dB unit against quieter competitors, and buyers in very cold climates may find two-stage cooling insufficient for summer demands.
Installation
Horizontal installation requires clear vertical height of 24.5 inches and adequate depth of 21.125 inches. PVC or plastic exhaust flue compatibility eliminates corrosion concerns with condensing furnaces. Electrical requirements demand 208/230V single-phase 60Hz service with 23.5 to 40 amp breaker sizing. Suction line insulation thickness of 1/2 inch and 50-foot liquid line length accommodate most residential layouts. Straightforward ductwork connections via standard ports.
Warranty & Reliability
Goodman provides a 10-year parts warranty upon online registration, a solid mid-tier coverage level. This covers furnace heat exchanger, compressor, and coil failures but typically excludes labor costs. Registration is mandatory to activate coverage, so documentation is critical. Compare this to competitors offering lifetime compressor warranties or extended coverage at additional cost.
Specifications
| SKU | LS381183850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 42,000 |
| Heating BTU | 120,000 |
| Refrigerant | R410A or R22 |
| Electrical | 208 / 230 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 73 |
| Weight (in lbs) | 48.000000 |
| Feature | Spec |
| AHRI Certificate Number | 7368845 |
| Airflow Direction | Downflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Product Features | Rebate Available |
| Furnace Efficiency / AFUE | 96% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 2000 |
| Configuration | Horizontal |
| Energy Star | Yes |
| Burner Stages | Two |
| Fuel Type | Propane, Natural Gas |
| 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. |
| SEER1 (Efficiency) | 16 |
| Condenser Stages | Single Stage |
| Compressor Type | Scroll |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 7/8" |
| Max Breaker Size | 40 amps |
| Min. Breaker Size | 23.5 amps |
| Tonnage | 5 Ton |
| Liquid Line | 3/8" |
| Suction Line | 1 1/8" |
| Style | A-Coil |
| Suction Line Insulation Thickness | 1/2" |
| Length | 50 feet |
Frequently Asked Questions
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