Review
The Goodman 3-ton horizontal furnace and air conditioner system sits squarely in the middle of the residential HVAC market. At 80% AFUE with 80,000 BTU heating output and 36,000 BTU cooling, this unit serves homeowners who want proven reliability without premium pricing. The horizontal configuration makes it particularly valuable for attic and basement installations where vertical space is limited. Goodman's reputation for straightforward engineering and parts availability appeals to both contractors and homeowners tackling replacements.
Performance metrics show competent rather than cutting-edge specifications. The two-stage burner cycles efficiently during mild heating periods while the 13 SEER condenser handles cooling demands across moderate climates. A high-efficiency multi-speed blower motor reaches 2000 CFM maximum, allowing precise airflow control throughout the home. Operating on 208/230V single-phase 60Hz power with a 19.1 to 30 amp breaker range fits standard residential electrical panels. The reciprocating compressor with R410A refrigerant is industry-standard, though newer variable-capacity designs now offer better part-load efficiency.
Pros & Cons
Pros
- 80% AFUE with two-stage burner balances heating efficiency and affordability for most climates
- 13 SEER rating delivers solid cooling performance at 36,000 BTU with single-stage compressor
- High-efficiency multi-speed blower motor with 2000 CFM maximum provides good air distribution control
- Horizontal configuration and compact 21 inch height fit tight attic and basement spaces
- Metal exhaust flue requirement keeps venting costs down compared to category III systems
Cons
- 80% AFUE misses modern efficiency standards, costing more to operate long-term than 95% units
- Not ENERGY STAR certified, limiting appeal for rebate-qualified installations and eco-conscious buyers
- 13 SEER is dated technology, newer models reach 16-18 SEER with similar pricing
Who Should Buy
Best For
Budget-focused homeowners in moderate heating climates who need a furnace replacement and have tight horizontal installation spaces. Contractors serving residential retrofit projects where upfront cost matters more than 20-year operating expenses.
Consider Alternatives If
Anyone in cold climates, seeking ENERGY STAR certification, or planning to stay 15-plus years should invest in modern 95% AFUE and 16+ SEER equipment.
Installation
Installation demands standard HVAC competency. The unit requires metal exhaust flue venting, 3/8 inch liquid line with 3/8 inch insulation, and 7/8 inch suction line. Sweat-valve connections are straightforward for experienced technicians. The horizontal orientation suits tight spaces but requires proper return air ducting to prevent short-cycling. Pre-installation inspection of electrical service, venting clearances, and refrigerant line runs is essential for reliable operation.
Warranty & Reliability
Goodman provides a 10-year parts and labor warranty with online registration, a respectable middle-ground coverage. Registration is required to activate the full term, so document the purchase immediately. This warranty covers manufacturing defects but excludes refrigerant loss, corrosion, and improper installation. For buyers planning extended ownership, extended warranties from Online Supply or third-party providers warrant investigation.
Specifications
| SKU | LS38783830 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 36,000 |
| Heating BTU | 80,000 |
| Refrigerant | R410A or R22 |
| Electrical | 208 / 230 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 74 |
| Weight (in lbs) | 30.000000 |
| Feature | Spec |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Metal |
| Furnace Efficiency / AFUE | 80% |
| Blower Motor | High Efficiency Multi-Speed |
| Maximum CFM | 2000 |
| Configuration | Horizontal |
| Burner Stages | Two |
| Fuel Type | Gas |
| Height | 21" |
| Width | 21.125" |
| Depth | 26" |
| Resources | CHPF Installation Manual CHPF 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. |
| Replaces | GSX130362, GSX130363, GSX130365 |
| Energy Star | No |
| SEER1 (Efficiency) | 13 |
| Condenser Stages | Single Stage |
| Compressor Type | Reciprocating |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 3/4" |
| Max Breaker Size | 30 amps |
| Min. Breaker Size | 19.1 amps |
| Tonnage | 3.5 Ton |
| Valve Type | Sweat |
| Liquid Line | 3/8" |
| Suction Line | 7/8" |
| Style | A-Coil |
| Suction Line Insulation Thickness | 3/8" |
| Length | 30 feet |
Frequently Asked Questions
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