Review
Goodman's combined furnace and air conditioning system represents a solid middle-ground solution for homeowners seeking balanced performance across heating and cooling. This downflow configuration carries respectable efficiency ratings and Goodman's established reputation for reliable equipment. The system targets contractors and DIY installers comfortable with gas furnace work who want modern efficiency without premium pricing. It competes directly with entry-level systems from Lennox, Carrier, and Rheem in the contractor-grade segment.
The furnace delivers exceptional heating efficiency at 97% AFUE using a modulating burner that adjusts flame intensity to match demand. The air conditioning side produces 29,000 BTU cooling output with 16 SEER2 efficiency, meeting Energy Star requirements. The variable-speed ECM blower motor ramps from 0 to 1,600 CFM, reducing unnecessary runtime and electricity consumption. Combined with scroll compressor technology and R410A refrigerant compatibility, this system handles moderate to heavy use without oversizing.
Pros & Cons
Pros
- 97% AFUE furnace efficiency reduces heating costs in cold climates, outperforming standard 80-90% units
- 16 SEER2 rating on the air conditioning side provides strong cooling efficiency for Energy Star compliance
- Modulating burner stages deliver precise heating control, reducing energy waste and improving comfort
- Variable-speed ECM blower motor optimizes airflow from 0-1600 CFM, reducing runtime and electricity use
- 10-year warranty with online registration offers solid protection on a complete system
- Downflow/horizontal A-coil configuration fits attic, basement, or crawlspace installations
Cons
- Spec sheet shows conflicting tonnage data, listing both 2.5 and 5 ton ratings, creating confusion about actual capacity
- 71.5 dB noise level is moderately loud during operation, noticeable in quiet home environments
- Single-stage condenser limits part-load efficiency compared to two-stage alternatives
- Requires plastic/PVC exhaust flue, which adds installation cost and limits placement flexibility
Who Should Buy
Best For
Contractors and homeowners in northern or mixed climates who heat primarily with natural gas or propane and want to maximize furnace efficiency. This system suits anyone replacing an aging furnace who values long-term energy savings and can accommodate a downflow installation.
Consider Alternatives If
Buyers in mild climates should avoid this unit since the high AFUE rating delivers minimal ROI without serious heating loads. Those needing quiet operation or flexible ductwork configurations may find better alternatives.
Installation
Installation requires proper gas line sizing, adequate venting with plastic PVC ducting, and electrical service supporting 25-amp maximum breaker capacity. The downflow configuration needs vertical clearance of 34.5 inches and adequate return air access. Technicians must manage both refrigerant lines with specified 3/8 inch liquid and 7/8 inch suction sizing, plus 3/4 inch suction line insulation. Proper ductwork design optimizes the 1,600 CFM maximum airflow.
Warranty & Reliability
Goodman provides a 10-year parts and labor warranty when you register the system online within the specified timeframe. This covers the furnace heat exchanger, compressor, and major components against manufacturing defects. Registration is straightforward and protects your investment across the full combo unit. Standard Goodman terms apply, with normal maintenance required to maintain coverage.
Specifications
| SKU | LS38783850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 29,000 |
| Heating BTU | 80,000 |
| Refrigerant | R410A or R22 |
| Electrical | 115 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 71.5 |
| 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 | 25 amps |
| Min. Breaker Size | 17.1 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 | 7424271 |
| Airflow Direction | Downflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Product Features | Rebate Available |
| Furnace Efficiency / AFUE | 97% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 1600 |
| Flue Location | Right |
| Burner Stages | Modulating |
| Fuel Type | Propane, Natural Gas |
| Suction Line Insulation Thickness | 3/4" |
| Length | 50 feet |
Frequently Asked Questions
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