Review
Goodman's 3.5-ton system represents the pragmatic middle ground in residential HVAC, combining the manufacturer's proven track record with no-nonsense engineering. At $647, this upflow A-coil configuration targets contractors and homeowners tired of premium pricing for features they won't use. The SKU LS38783830 unit ships at 30 pounds, compact enough for standard attic installations across most single-story homes and ranch-style properties.
Performance specs reveal a workhorse design rather than a high-efficiency showpiece. The furnace delivers 80,000 BTU heating through two-stage burners, while the AC coil handles 42,000 BTU cooling at 13 SEER efficiency. The high-efficiency multi-speed blower achieves 2000 CFM maximum airflow, meaning the system modulates capacity better than fixed-speed alternatives. However, 80% AFUE and single-stage condenser operation keep this unit in the mid-tier category, trading some efficiency gains for lower acquisition cost.
Pros & Cons
Pros
- Exceptional value at $647 for a complete 3.5-ton combo system with both furnace and AC coil
- 80,000 BTU heating capacity with two-stage burner allows better temperature modulation than single-stage units
- 13 SEER cooling efficiency meets current baseline standards for most markets and rebate programs
- High-efficiency multi-speed blower motor reduces runtime and energy waste during partial-load operation
- Upflow A-coil configuration suits most retrofit installations in attics or crawl spaces above furnaces
Cons
- 80% AFUE furnace efficiency is below modern high-efficiency standards, missing some utility rebates
- Single-stage condenser limits cooling optimization, meaning compressor cycles on/off rather than modulating
- 75 dBA noise level is louder than premium units, noticeable in quiet neighborhoods
- No ENERGY STAR certification reflects mid-tier component choices and older technology platforms
Who Should Buy
Best For
Homeowners in moderate climates replacing older 10-13 year old systems want straightforward reliability without premium pricing. Rental property investors and contractors managing multiple jobs appreciate the low upfront investment and Goodman's parts availability at supply houses nationwide.
Consider Alternatives If
Buyers in extreme climates, those seeking 16+ SEER efficiency for rebates, or homeowners prioritizing quiet operation should evaluate higher-tier units with variable-speed technology.
Installation
The upflow configuration suits attic placement in most homes, requiring standard 208/230V single-phase power. A 40-amp breaker handles peak electrical demand, while the 36.25 inch height fits most attic joist spacing. Technicians need to provide metal exhaust flue, R410A refrigerant charge, and proper line insulation with 3/8 inch minimum thickness on the suction line. Standard ductwork connections use conventional sweat-valve fittings.
Warranty & Reliability
Goodman includes a 10-year parts and labor warranty upon online registration, standard for the brand's mid-market offerings. This covers compressor, coil, and furnace components but requires proof of professional installation. Registration takes minutes at Goodman's website, and technicians familiar with the brand report straightforward claims processing through Online Supply's support network.
Specifications
| SKU | LS38783830 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 42,000 |
| Heating BTU | 80,000 |
| Refrigerant | R410A |
| Electrical | 208 / 230 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 75 |
| Weight (in lbs) | 30.000000 |
| Feature | Spec |
| Configuration | Upflow/Horizontal |
| Liquid Line | 3/8" |
| Suction Line | 7/8" |
| Tonnage | 3.5 Ton |
| Style | A-Coil |
| Height | 36.25" |
| Width | 29" |
| Depth | 29" |
| Resources | Goodman Installation Manual Goodman Specifications Goodman Technical Manual Goodman Warranty Information Goodman Brochure Goodman Service Instructions Goodman Kit Instructions Goodman Parts Manual 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. |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Metal |
| Furnace Efficiency / AFUE | 80% |
| Blower Motor | High Efficiency Multi-Speed |
| Maximum CFM | 2000 |
| Burner Stages | Two |
| Fuel Type | Gas |
| Energy Star | No |
| SEER1 (Efficiency) | 13 |
| Condenser Stages | Single Stage |
| Compressor Type | Reciprocating |
| Liquid Valve Size | 3/8" |
| Max Breaker Size | 40 amps |
| Min. Breaker Size | 23.9 amps |
| Valve Type | Sweat |
| Suction Line Insulation Thickness | 3/8" |
| Length | 30 feet |
Frequently Asked Questions
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