Review
The Goodman 3-ton gas furnace and air conditioner system targets the competitive residential replacement market with solid efficiency credentials. Badged as a 97% AFUE furnace paired with an SEER1 18 condenser, this unit checks boxes for homeowners seeking Energy Star certification and lower operating costs. Online Supply prices it aggressively, and the rebate eligibility adds real incentive value for budget-conscious buyers looking to reduce upfront expense.
On paper, the numbers look strong. The furnace delivers 100,000 BTU of modulating heat output with a 97% AFUE rating, meaning 97 cents of every dollar spent on gas becomes usable heat. The air conditioner side produces 35,000 BTU cooling capacity with an 18 SEER1 rating and two-stage scroll compressor. The variable-speed ECM blower motor maxes at 2000 CFM, adjusting speed to match demand rather than cycling constantly, which keeps noise at a reasonable 71 dBA.
Pros & Cons
Pros
- 97% AFUE furnace efficiency beats most residential gas furnaces on the market
- SEER1 18 condenser unit qualifies for Energy Star, reducing cooling energy costs
- Modulating burner stages adjust to actual heating demand, not just on/off cycling
- Variable-speed ECM blower motor optimizes airflow and reduces runtime noise to 71 dBA
- Two-stage scroll compressor handles partial-load cooling efficiently
Cons
- Spec sheet lists conflicting tonnage, 3 ton in title but 5 ton in specs, creating confusion
- Cooling capacity of 35,000 BTU suggests this may be oversized or mislabeled for true 3-ton operation
- PVC exhaust flue requirement adds cost in regions where metal flue venting is standard
Who Should Buy
Best For
Homeowners upgrading an older furnace and AC unit in downflow installations, particularly those motivated by lower utility bills. Contractors handling residential replacement jobs in areas accepting PVC exhaust venting will appreciate the modulating efficiency and rebate eligibility.
Consider Alternatives If
Projects requiring upflow-only configuration or metal flue venting, and buyers uncertain about whether 3-ton or 5-ton capacity matches their home's actual load.
Installation
This downflow configuration suits basements or attics where ductwork feeds downward or horizontally. The unit requires 115V single-phase 60Hz power with a 21.3 to 35 amp breaker, making it compatible with standard residential electrical. Critical for installers, the PVC plastic exhaust flue requirement differs from traditional metal venting, so verify local code acceptance before committing.
Warranty & Reliability
Goodman backs this system with a 10-year parts and labor warranty upon online registration. This is competitive for the residential market and covers the compressor, furnace heat exchanger, and coil equally. Registration is simple but mandatory, so contractors should advise homeowners not to skip this step.
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 | 21" |
| 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 | 7424272 |
| Airflow Direction | Downflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Furnace Efficiency / AFUE | 97% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 2000 |
| Configuration | Upflow / Downflow |
| 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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