Review
The Goodman 3.5 Ton Upflow Gas Furnace and Air Conditioner System represents a middle-ground option in the residential HVAC market. Goodman equipment typically appeals to cost-conscious contractors and homeowners seeking reliability without premium branding. This particular configuration bundles a 96% AFUE furnace capable of 80,000 BTU heating output with a 42,000 BTU (3.5-ton) cooling coil. The upflow design suits basements and crawlspaces where horizontal or upflow discharge makes sense for ductwork distribution.
Performance specs here tell a solid efficiency story. The furnace's 96% AFUE rating means 96 cents of every heating dollar converts to home warmth, with minimal stack losses thanks to PVC flue venting. Cooling efficiency registers at 16 SEER, competitive for non-variable-compressor designs. The variable-speed ECM blower motor is the efficiency workhorse, modulating airflow between 0-1600 CFM to match actual heating and cooling demand rather than running full-blast constantly. Two-stage burner heating provides capacity matching that reduces cycling.
Pros & Cons
Pros
- 96% AFUE furnace efficiency exceeds most baseline models by 5-10 percentage points, reducing heating costs measurably
- 16 SEER cooling delivers above-average air conditioning efficiency for residential applications
- Variable-speed ECM blower motor automatically adjusts airflow, improving comfort and reducing runtime energy use
- Two-stage burner and single-stage compressor provide flexible heating and cooling capacity matching
- PVC/plastic flue requirement simplifies installation compared to metal vent systems
- Energy Star certified configuration qualifies for utility rebates in many regions
Cons
- Tonnage mismatch is problematic: 3.5 ton cooling capacity paired with 5 ton listed tonnage creates confusion and potential oversizing issues
- 73 dBA noise level runs slightly loud for a residential unit, noticeable during operation
- Single-stage compressor lacks variable capacity for quieter, more efficient partial-load cooling
Who Should Buy
Best For
Contractors installing systems in new construction or major retrofits where upflow configuration fits the layout, and homeowners in heating-dominant climates seeking straightforward efficiency gains. Budget-conscious buyers willing to skip name-brand premiums will appreciate the value proposition here.
Consider Alternatives If
Homeowners in hot climates needing aggressive cooling efficiency should explore true 5-ton units or variable-capacity compressors instead of this mismatched 3.5-ton/5-ton design.
Installation
This upflow unit ships at 48 pounds and measures 30 inches tall, 21 wide, and 21 deep, fitting standard equipment closets and utility spaces. PVC flue requirements simplify venting compared to metal systems, typically reducing installation time by 2-4 hours. Electrical needs are modest: 208/230V single-phase 60 Hz service with breaker sizing between 23.5 and 40 amps. The 3/8-inch liquid and 1 1/8-inch suction lines with 1/2-inch insulation follow standard refrigerant line practices.
Warranty & Reliability
Ten-year parts coverage applies with online registration, which is competitive against industry standards. This covers the compressor, coil, and cabinet defects but excludes filter and refrigerant charges. Registration takes minutes and protects your investment meaningfully. Labor and service calls fall outside coverage, so budget separately for emergency repairs beyond year two.
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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