Review
The Goodman 3 Ton Gas Furnace and Air Conditioner System represents a solid mid-market choice for contractors and homeowners seeking a dependable dual-fuel solution. Built on Goodman's reputation for straightforward reliability, this downflow A-coil unit combines a high-efficiency furnace with cooling capacity suitable for moderate climate zones. The system targets budget-conscious buyers who don't want to sacrifice performance for affordability.
This unit delivers a 96% AFUE furnace rating, meaning minimal heat loss during combustion, paired with 16 SEER1 cooling efficiency and Energy Star certification. The 100,000 BTU heating capacity covers most residential heating loads, while the two-stage burner adjusts output based on demand. The variable-speed ECM blower motor runs at 2000 CFM maximum, distributing conditioned air efficiently throughout your home without the constant cycling of single-speed models.
Pros & Cons
Pros
- 96% AFUE furnace efficiency means 96 cents of every heating dollar goes to home warmth, not waste
- Energy Star certified with 16 SEER1 cooling efficiency for lower operating costs year-round
- Two-stage burner and variable-speed ECM blower motor provide precise comfort control and quieter operation
- Dual-fuel capability handles both natural gas and propane, offering flexibility for different utility availability
- 10-year warranty with online registration protects your investment across parts and labor
Cons
- Spec sheet lists conflicting tonnage values (title says 3 ton, specs show 5 ton and 34,800 cooling BTU), creating serious confusion about actual capacity
- 73.5 dB noise level is moderately loud for some residential settings, particularly in quiet neighborhoods
- Single-stage compressor design is less efficient than variable-capacity systems for partial-load cooling demands
Who Should Buy
Best For
This system suits homeowners in colder climates prioritizing heating efficiency and those with access to multiple fuel types. It's particularly well-matched for properties where natural gas and propane costs fluctuate seasonally, allowing fuel switching for optimal expenses.
Consider Alternatives If
Buyers in hot climates who need excellent cooling performance should evaluate variable-speed compressor models instead, as single-stage cooling is less efficient for extended air conditioning seasons.
Installation
Installation requires a plastic or PVC exhaust flue setup and standard 115V, 60Hz electrical service with 18.7 to 30-amp breaker capacity. The unit's downflow configuration suits homes with basements or crawl spaces where ductwork runs beneath living areas. Refrigerant lines include 3/8-inch liquid and 7/8-inch suction lines with 3/4-inch insulation, standard for most residential installations.
Warranty & Reliability
Goodman's 10-year parts and labor warranty applies with online registration, covering defects in materials and workmanship. This warranty length provides solid protection for a mid-range system. Registration is straightforward and typically completed during installation, protecting your investment against premature failures.
Specifications
| SKU | LS38783850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 34,800 |
| Heating BTU | 100,000 |
| Refrigerant | R410A or R22 |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 73.5 |
| Weight (in lbs) | 30.000000 |
| Feature | Spec |
| Energy Star | Yes |
| SEER1 (Efficiency) | 16 |
| Condenser Stages | Single Stage |
| Compressor Type | Scroll |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 7/8" |
| Max Breaker Size | 30 amps |
| Min. Breaker Size | 18.7 amps |
| Tonnage | 5 Ton |
| Height | 34.5" |
| Width | 21" |
| Depth | 28.75" |
| Resources | Goodman Brochure Goodman Installation Instructions Goodman Parts Manual Goodman Service Manual Goodman Specifications 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 | Downflow/Horizontal |
| Liquid Line | 3/8" |
| Suction Line | 7/8" |
| Style | A-Coil |
| AHRI Certificate Number | 7368844 |
| Airflow Direction | Downflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Product Features | Rebate Available |
| Furnace Efficiency / AFUE | 96% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 2000 |
| Burner Stages | Two |
| Fuel Type | Propane, Natural Gas |
| Suction Line Insulation Thickness | 3/4" |
| Length | 50 feet |
Frequently Asked Questions
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