Review
Goodman's 3-ton modulating gas furnace and two-stage air conditioner system represents a solid choice for contractors and homeowners seeking balanced performance and efficiency. This upflow configuration handles both heating and cooling through a single integrated unit, simplifying installation in many homes. The combination of a high-efficiency furnace paired with an inverter-capable condenser positions it in the upper-middle market segment where efficiency gains matter without reaching premium pricing tiers.
The furnace delivers 100,000 BTU of heating capacity at 97% AFUE efficiency, meaning nearly all fuel converts to usable heat rather than exhaust waste. On the cooling side, the condenser produces 35,000 BTU output with an 18 SEER2 rating, better than the 17 SEER specification listed. The modulating burner and two-stage scroll compressor ramp output based on demand, reducing cycling and improving comfort consistency. Powered by a variable-speed ECM blower reaching 2000 CFM maximum, the system adapts to changing load requirements throughout the day and season.
Pros & Cons
Pros
- 97% AFUE furnace efficiency means minimal wasted fuel, translating to lower heating bills through winter months
- 18 SEER2 cooling rating beats the 3-ton 17 SEER spec sheet claim, delivering better-than-expected AC efficiency
- Modulating burner and two-stage compressor run at partial capacity most of the time, reducing wear and extending equipment life
- Variable-speed ECM blower motor adjusts CFM output between 0-2000, improving comfort and reducing standby energy waste
- Energy Star certified with 10-year warranty when registered, protecting your investment
Cons
- Spec sheet lists conflicting tonnage, claiming both 3-ton and 5-ton capacity, creating buyer confusion about actual system size
- 71 dB noise level is louder than premium competitors, noticeable during compressor operation in quiet neighborhoods
- Requires professional installation for proper refrigerant charging and furnace setup, no DIY option available
Who Should Buy
Best For
Homeowners in northern and central climates who want proven Goodman reliability with impressive heating and cooling efficiency ratings. This system fits well for those replacing 10+ year old equipment who plan to stay in their homes at least 8-10 years.
Consider Alternatives If
Budget-conscious buyers or those in mild climates should compare lower-tier models, as the premium efficiency gains may not justify costs in regions requiring minimal heating.
Installation
Installation requires proper ductwork sizing to handle the maximum 2000 CFM output. The furnace accepts both natural gas and propane with right-side flue location using PVC piping. Suction line insulation of 3/4 inch thickness comes pre-installed. Professional technicians must properly charge refrigerant and verify AHRI certification number 7424267 matches your application. Electrical requirements include 115V single-phase 60 Hz service with 21.3 to 35 amp breaker sizing.
Warranty & Reliability
Goodman covers this system with a 10-year parts warranty when you complete online registration after installation. This duration is standard for the brand and provides meaningful protection against compressor and heat exchanger failures. The warranty is non-transferable, so it applies only to the original homeowner. Coverage excludes wear items like filters and capacitors. Evaporator coil carries its own separate warranty document.
Specifications
| SKU | LS38783850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 35,000 |
| Heating BTU | 100,000 |
| Refrigerant | R410A |
| 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 | 30" |
| Width | 24.5" |
| Depth | 21" |
| Resources | CAPT Installation Manual CAPT 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 | 7424267 |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Furnace Efficiency / AFUE | 97% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 2000 |
| Configuration | Upflow / Downflow |
| Flue Location | Right |
| Burner Stages | Modulating |
| 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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