Review
Goodman's downflow gas furnace and air conditioner system lands in the efficiency sweet spot for contractors and homeowners balancing performance with cost. The 97% AFUE rating places this unit among the highest-efficiency gas furnaces available, while the two-stage compressor with SEER1 18 rating handles cooling duties competently. Marketed at an attractive price point with rebate eligibility, this system targets budget-conscious buyers who refuse to compromise on heating efficiency.
The modulating burner is the real star here, firing between low and high stages to match actual heating demand rather than cycling on and off repeatedly. You'll see this reflected in steadier indoor temperatures and lower peak energy consumption. The variable-speed ECM blower motor deserves praise too, adjusting its 1200 CFM maximum automatically based on system needs. Cooling performance via the scroll compressor reaches SEER1 18, with 35,000 BTU capacity and a measured 71 dBA noise level during operation. R410A refrigerant and plastic PVC exhaust flue compatibility round out solid baseline specifications.
Pros & Cons
Pros
- 97% AFUE furnace efficiency means minimal heat loss, translating to genuine savings on natural gas and propane heating costs
- Two-stage scroll compressor with SEER1 18 delivers efficient cooling without excessive noise at 71 dBA during standard operation
- Modulating burner adjusts heating output precisely, reducing temperature swings and improving comfort versus single-stage units
- Variable-speed ECM blower motor runs quietly and adjusts CFM automatically, typically consuming 75% less energy than fixed-speed motors
- Energy Star certified with 10-year warranty via online registration, covering both furnace and evaporator coil
Cons
- Specification inconsistencies between product title (3 ton) and actual specs (5 ton tonnage) create confusion for proper system sizing
- Listed cooling capacity of 35,000 BTU appears undersized relative to 5-ton rating, suggesting potential matching issues with the furnace
- A-coil configuration requires downflow installation, limiting placement options in homes without basement or crawlspace returns
Who Should Buy
Best For
Homeowners in moderate to cold climates replacing older furnaces and looking to maximize heating efficiency without major ductwork changes. Particularly suited for those comfortable with variable-speed blower technology who want quieter operation paired with strong heating performance.
Consider Alternatives If
Anyone needing a straightforward 3-ton system should investigate the tonnage discrepancy with the manufacturer. Homes requiring maximum cooling capacity in hot climates may find the 35,000 BTU output limiting.
Installation
Downflow configuration and A-coil design require careful duct positioning, typically suited for basement or attic installation with returns below the unit. Electrical needs are modest at 115V single-phase 60Hz with breaker requirements between 21.3 and 35 amps. Refrigerant lines demand 3/8 inch liquid and 7/8 inch suction piping with 3/4 inch insulation thickness. Installation manual availability and AHRI certification (7424270) simplify contractor coordination.
Warranty & Reliability
The 10-year comprehensive warranty applies when you register the system online within 30 days of installation. Coverage extends to both furnace components and the evaporator coil, providing solid peace of mind against manufacturing defects. Online registration is mandatory, so factor in the administrative step during commissioning. This duration matches competitor offerings and reflects manufacturer confidence in unit reliability.
Specifications
| SKU | LS38783850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 35,000 |
| Heating BTU | 80,000 |
| 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 | 7424270 |
| Airflow Direction | Downflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Furnace Efficiency / AFUE | 97% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 1200 |
| 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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