Review
The Goodman 3-ton combo system positioned at $647 occupies the accessible middle ground of residential HVAC equipment. This unit bundles an air conditioner condenser with an 80% AFUE furnace in upflow configuration, making it practical for homeowners upgrading from older split systems or contractors balancing performance against budget constraints. Online Supply offers standard Goodman documentation and a 10-year warranty with registration, typical of manufacturer-backed units at this price tier.
Performance metrics show 36,000 BTU cooling capacity with 14 SEER efficiency, delivering reasonable summer cooling without premium consumption. The furnace generates 100,000 BTU with two-stage burner modulation and variable-speed blower pushing up to 2000 CFM. However, 80% AFUE means approximately 20 cents of every heating dollar escapes through the vent, a consideration in cold climates. The scroll compressor operates single-stage, cycling fully on and off rather than matching load through modulation.
Pros & Cons
Pros
- Aggressive $647 price point for a complete 3-ton combo system with furnace and condenser
- 14 SEER cooling efficiency is solid mid-range performance for air conditioning
- Two-stage burner on furnace provides modulating heating capacity for more consistent comfort
- Variable-speed blower motor delivers up to 2000 CFM with better part-load efficiency
- Metal suction line insulation included, reducing potential installation labor costs
Cons
- 80% AFUE heating is the baseline efficiency standard, not premium, meaning higher fuel costs than high-efficiency models
- Single-stage compressor without modulation creates larger temperature swings compared to variable-capacity units
- Not ENERGY STAR certified, which may disqualify it from some utility rebates
- 73 dB noise level is moderate, acceptable but louder than premium units
Who Should Buy
Best For
Homeowners in moderate climates needing equipment replacement on a tight budget, or contractors managing multiple residential jobs where cost control is critical. This system delivers acceptable performance without premium pricing.
Consider Alternatives If
Anyone prioritizing maximum efficiency, seeking ENERGY STAR rebates, or living in regions with extreme heating demands where 80% AFUE leads to significantly higher operating costs.
Installation
This upflow A-coil design fits standard return-air plenums with 34.5-inch height and reasonable footprint at 21 by 28.75 inches. Refrigerant lines require 3/8-inch liquid and 3/4-inch suction connections, both sized appropriately. The unit accepts R410A or R22, though R22 availability has become limited. Metal exhaust flue is required for the furnace. Electrical demand runs 18.7 to 30 amperes at 120V single-phase, standard for residential installations.
Warranty & Reliability
Goodman provides 10 years parts coverage upon online registration, which is competitive at this price point. Coverage applies to compressor, coil, and component failures but typically excludes labor, refrigerant, and damage from installation errors. Registration is straightforward and adds meaningful protection, though you should verify coverage details with your contractor before purchase.
Specifications
| SKU | LS38343830 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 36,000 |
| Heating BTU | 100,000 |
| Refrigerant | R410A or R22 |
| Electrical | 120 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 73 |
| Weight (in lbs) | 35.000000 |
| Feature | Spec |
| Energy Star | No |
| SEER1 (Efficiency) | 14 |
| Condenser Stages | Single Stage |
| Compressor Type | Scroll |
| Liquid Line | 3/8" |
| Suction Line | 3/4" |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 3/4" |
| Max Breaker Size | 30 Amps |
| Min. Breaker Size | 18.7 Amps |
| Tonnage | 3.5 Ton |
| Height | 34.5" |
| Width | 21" |
| Depth | 28.75" |
| Resources | Goodman Brochure Goodman Installation Instructions Goodman Parts Manual Goodman Service Manual Goodman Technical Information Goodman User Information Goodman 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. |
| Configuration | Upflow/Horizontal |
| Style | A-Coil |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Metal |
| Furnace Efficiency / AFUE | 80% |
| Blower Motor | Variable Speed |
| Maximum CFM | 2000 |
| Burner Stages | Two |
| Fuel Type | Propane, Natural Gas |
| Suction Line Insulation Thickness | 3/4" |
| Length | 30 feet |
Frequently Asked Questions
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