Review
The Goodman 3-ton (or 5-ton per specifications) combined gas furnace and air conditioner system targets the mid-to-premium residential market. This unit bundles a 100,000 BTU furnace with an A-coil air handler and outdoor condenser, designed for upflow installation. Online Supply positions it as an Energy Star qualified solution with rebate eligibility. The system uses R410A refrigerant, standard for modern AC units, and comes with a 10-year warranty when registered online.
Performance specs show a 97% AFUE furnace rating, meaning 97 cents of every heating dollar converts to usable warmth, versus 80-85% on older units. The condenser delivers 35,000 cooling BTU with an 18 SEER2 efficiency rating and two-stage scroll compressor. The variable-speed ECM blower motor adjusts CFM from 0 to 2000 based on demand, reducing standby energy consumption. This modulating burner and variable-speed combination typically yields 15-25% annual energy savings versus single-stage equipment.
Pros & Cons
Pros
- 97% AFUE furnace efficiency reduces heating costs significantly versus standard 80-90% models
- 18 SEER2 rating on condenser delivers strong summer cooling performance with two-stage compressor
- Modulating burner adjusts heating output for better comfort and lower energy waste
- Variable-speed ECM blower motor optimizes airflow and reduces electricity consumption
- Energy Star certified system qualifies for utility rebates in most regions
- 10-year warranty with online registration provides solid coverage for residential use
Cons
- Spec sheet contains conflicting tonnage data (title says 3 ton, specs list 5 ton), creating confusion for proper system sizing
- 71 dB noise level is moderately loud for some residential settings, especially at night
- A-coil configuration requires specific ductwork orientation and may not fit all existing installations
Who Should Buy
Best For
Homeowners replacing a 15+ year old furnace and AC system in climate zones requiring both heating and cooling. This system makes sense for those prioritizing energy efficiency and long-term utility bill reduction over lowest upfront cost.
Consider Alternatives If
Anyone in warm climates where heating demand is minimal should prioritize a higher-SEER cooling system instead. Buyers needing compact equipment or quieter operation should evaluate alternatives.
Installation
This upflow configuration requires 3/8 inch liquid line and 7/8 inch suction line connections with sweat valve fittings. The unit measures 34.5 inches tall by 21 inches wide by 28.75 inches deep, fitting standard utility closet or basement locations. Electrical needs include 115V single-phase 60Hz service with breaker sizing between 21.3 and 35 amps. PVC exhaust flue is required, with the right-side flue location needing proper venting to outdoors.
Warranty & Reliability
The 10-year parts warranty applies when you register the system online with Online Supply or Goodman. Coverage includes compressor, heat exchanger, and sealed components. Labor and refrigerant are not included. Registration is straightforward and recommended within 30 days of installation to activate full coverage and preserve resale value.
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 | 34.5" |
| Width | 21" |
| Depth | 28.75" |
| Resources | Goodman Brochure Goodman Specifications 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. |
| Configuration | Upflow/Horizontal |
| Liquid Line | 3/8" |
| Suction Line | 7/8" |
| Style | A-Coil |
| 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 |
| Flue Location | Right |
| Burner Stages | Modulating |
| Fuel Type | Propane, Natural Gas |
| Suction Line Insulation Thickness | 3/4" |
| Length | 50 feet |
Frequently Asked Questions
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