Review
Goodman's 3-ton horizontal furnace and air conditioner system sits squarely in the value-focused segment, targeting homeowners seeking reliable climate control without premium pricing. The dual-fuel setup combines gas heating with mechanical cooling in a compact 34.5-inch height profile, fitting readily into cramped attics and basement installations. At 3.5 tons actual capacity, this system handles most single-family homes across moderate climate zones where heating demands remain reasonable.
The 96% AFUE furnace rating delivers excellent heating efficiency, recovering nearly all combustible energy as usable heat while venting just 4% through the plastic flue. Cooling performance hits 14 SEER with 36,000 BTU output from the scroll compressor, translating to reasonable summer electricity consumption. The multi-speed blower motor automatically adjusts airflow between 0 and 2000 CFM, preventing energy waste during light-load periods and improving humidity control compared to single-speed competitors.
Pros & Cons
Pros
- 96% AFUE furnace efficiency minimizes heating costs in winter months
- 14 SEER cooling rating provides solid efficiency for 3-ton capacity systems
- Scroll compressor design offers proven reliability with single-stage operation
- Multi-speed blower motor enables better temperature control and reduced utility bills
- PVC-compliant flue design simplifies installation in modern homes
Cons
- 73 dB noise level runs louder than premium variable-speed competitors
- Single-stage cooling and heating limits efficiency during partial-load conditions
- No Energy Star certification despite respectable SEER and AFUE ratings
- SKU LS38343830 shows potential online-only supply chain limitations
Who Should Buy
Best For
Budget-conscious homeowners replacing 10-15 year old systems in moderate climates where 14 SEER and 96% AFUE deliver meaningful energy savings. Contractors installing straightforward replacements appreciate the horizontal A-coil design and standard R410A refrigerant compatibility.
Consider Alternatives If
Buyers prioritizing whisper-quiet operation, Energy Star certification, or variable-capacity systems should consider premium alternatives with multi-stage compressors.
Installation
Installation requires standard 115V single-phase 60Hz power service with 18.7 to 30-amp breaker capacity, fitting most residential electrical panels without upgrades. The horizontal A-coil configuration demands careful ductwork planning, with 3/8-inch liquid and 3/4-inch suction lines requiring proper insulation thickness and support. PVC flue routing simplifies venting through modern code-compliant plastic, avoiding expensive masonry repairs.
Warranty & Reliability
Goodman backs this system with a generous 10-year parts and labor warranty upon online registration, providing meaningful protection against manufacturing defects. While shorter than some competitors' 12-year programs, the coverage remains industry-standard and transferable to subsequent owners, supporting residual value if you sell.
Specifications
| SKU | LS38343830 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 36,000 |
| 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 |
| 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 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 |
| Style | A-Coil |
| Airflow Direction | Downflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Furnace Efficiency / AFUE | 96% |
| Blower Motor | Multi Speed |
| Maximum CFM | 2000 |
| Flue Location | Right |
| Burner Stages | Single |
| Fuel Type | Gas |
| Suction Line Insulation Thickness | 3/4" |
| Length | 30 feet |
Frequently Asked Questions
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