Review
The Goodman 3.5 Ton upflow furnace and air conditioner system targets the mainstream residential market with solid efficiency credentials and reliable component selection. At 96% AFUE with Energy Star certification, this unit competes directly against mid-tier equipment from Lennox, Rheem, and Carrier. The combination of two-stage heating, variable-speed ECM blower, and PVC exhaust venting reflects thoughtful design for typical installation environments. Goodman's reputation for durability and parts availability makes this particularly attractive to contractors managing service calls over 10-15 years.
Performance metrics show 80,000 BTU heating output with two-stage burner operation optimizing efficiency across temperature swings typical in northern climates. The cooling side delivers 42,000 BTU at 15 SEER, though the 5 ton condenser specification creates some confusion against the 3.5 ton system label. Variable-speed ECM blower reaches 1600 CFM maximum airflow, reducing noise during partial-load operation when the heating or cooling demand drops. The scroll compressor with R410A refrigerant meets current environmental standards while the 1/2-inch suction line insulation minimizes efficiency losses in longer runs.
Pros & Cons
Pros
- 96% AFUE furnace efficiency significantly reduces heating costs compared to 80-90% models
- Two-stage burner automatically adjusts to heating demand, improving comfort and efficiency
- Variable-speed ECM blower motor runs quieter than fixed-speed alternatives while reducing energy use
- Energy Star certified and AHRI listed for verified performance ratings
- Upflow/horizontal configuration works in basements, attics, or closets with flexible placement
- PVC exhaust flue eliminates expensive venting restrictions of older furnace types
Cons
- 73 dB noise level is moderately loud during high-stage operation, noticeable in quiet homes
- Specs show 5 ton cooling capacity but only 3.5 ton rating creates potential mismatch with system marketing
- Single-stage condenser means AC doesn't modulate like heating does, limiting summer efficiency gains
Who Should Buy
Best For
Homeowners in heating-dominant climates replacing 15-25 year old furnaces will see payback within 5-7 years through efficiency gains. Contractors installing systems for mid-range residential customers appreciate the Goodman reputation, AHRI certification, and straightforward upflow installation.
Consider Alternatives If
Skip this if you need variable-speed cooling or live in a mild climate where heating efficiency doesn't justify the upgrade cost.
Installation
This upflow configuration fits standard basement installations with the flue exiting right side into PVC venting, eliminating masonry concerns. The 30 by 21 by 21 inch footprint works in tight utility closets or attic spaces common in existing homes. Electrical requirements demand 208/230V single-phase 60Hz service with breaker sizing between 23.5 and 40 amps, typical for most residential panels. Field connections use standard 3/8-inch liquid and 1 1/8-inch suction lines, making contractor training and supply ordering straightforward.
Warranty & Reliability
Goodman includes 10 years of parts coverage with online product registration, a middle-ground warranty compared to extended plans offered by some competitors. The warranty covers refrigerant and sealed components but typically excludes shipping costs and routine maintenance. Registration takes ten minutes and protects against manufacturing defects, though labor coverage varies by regional dealer agreements. Always photograph the serial number and retain documentation for claim verification.
Specifications
| SKU | LS381183850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 42,000 |
| Heating BTU | 80,000 |
| 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 | 7368835 |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Furnace Efficiency / AFUE | 96% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 1600 |
| Configuration | Upflow / Downflow |
| Flue Location | Right |
| Energy Star | Yes |
| Burner Stages | Two |
| Fuel Type | Propane, Natural Gas |
| Height | 30" |
| Width | 21" |
| Depth | 21" |
| Resources | CAPF Installation Manual CAPF 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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