Review
The Goodman 2.5-ton combo furnace and air conditioner system is a mainstream choice for contractors and homeowners balancing budget and performance. Manufactured by Online Supply under the Goodman brand, this horizontal A-coil configuration targets retrofit installations in attics or crawlspaces where traditional vertical units don't fit. At $2,142, it positions itself as an accessible entry point into modern HVAC without premium pricing. The system combines a gas furnace with seasonal cooling capacity in one unit, streamlining installation for properties requiring both comfort seasons.
Performance specs show a 14 SEER air conditioner paired with an 80% AFUE furnace delivering 30,000 BTU cooling and 80,000 BTU heating. The variable-speed blower motor ranges from 0 to 2,000 CFM, adapting to load conditions for quieter operation and better dehumidification. Two-stage burner operation improves heating comfort by modulating flame intensity rather than cycling on and off. The rotary compressor uses R410A refrigerant, an industry standard ensuring contractor familiarity and parts availability. Operating at 120V single-phase 60 Hz, it requires a 17.1 to 25-amp breaker, typical for residential installations.
Pros & Cons
Pros
- 14 SEER rating delivers solid cooling efficiency for mid-market applications, translating to meaningful energy savings over standard units
- Two-stage burner provides better heating modulation and comfort compared to single-stage alternatives
- Variable-speed blower motor adjusts airflow from 0 to 2,000 CFM, improving dehumidification and reducing runtime noise
- Affordable entry point at $2,142 for a complete system with 10-year parts warranty
- R410A refrigerant and rotary compressor are industry-standard, ensuring parts availability and contractor familiarity
- A-coil horizontal configuration works well in attics and crawlspaces with limited headroom
Cons
- 80% AFUE is baseline for modern gas furnaces; high-efficiency alternatives reach 95% AFUE and recoup costs in fuel savings
- Single-stage compressor lacks variable capacity, meaning the AC runs at full output until reaching setpoint, reducing efficiency in mild weather
- 3.5-ton tonnage rating mismatch with advertised 2.5-ton sizing may indicate configuration limitations or require careful ductwork design
- 72 dB noise level is moderate; high-efficiency inverter systems operate 4 to 8 dB quieter
- Not ENERGY STAR certified, missing utility rebates available in many states for qualified equipment
Who Should Buy
Best For
Homeowners in moderate climates replacing aging 10-to-15-year-old systems, or contractors building spec homes where upfront cost matters more than operational savings. This system fits homes with 1,200-1,600 square feet and moderate heating/cooling loads.
Consider Alternatives If
Buyers in extreme climates (very hot or very cold), those planning to stay 15+ years (higher-efficiency units break even faster), or anyone prioritizing low operating costs and quiet operation should explore variable-capacity or two-stage compressor alternatives.
Installation
Installation requires standard refrigerant lines with 3/8 inch liquid and 3/4 inch suction connections, both pre-insulated with 3/4 inch foam. The 50-foot suction line accommodates moderate-distance condenser placement. Metal exhaust flue is mandatory for the gas furnace. Horizontal orientation demands secure mounting in attic or crawlspace with adequate airflow clearance around the condenser coil. Ductwork must handle 2,000 CFM maximum airflow for proper performance.
Warranty & Reliability
Goodman covers parts for 10 years with online registration, a standard protection matching most mid-market competitors. Labor and refrigerant are not included, so service calls beyond the first year cost extra. Registration is straightforward but required to activate the full term, so documentation should be completed at installation. This warranty provides reasonable peace of mind for a budget system but doesn't extend to compressor failures beyond year one on many plans.
Specifications
| SKU | LS38343850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 30,000 |
| Heating BTU | 80,000 |
| Refrigerant | R410A |
| Electrical | 120 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 72 |
| Weight (in lbs) | 22.000000 |
| Feature | Spec |
| Energy Star | No |
| SEER1 (Efficiency) | 14 |
| Condenser Stages | Single Stage |
| Compressor Type | Rotary |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 3/4" |
| Max Breaker Size | 25 amps |
| Min. Breaker Size | 17.1 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 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 | Upflow/Horizontal |
| Liquid Line | 3/8" |
| Suction Line | 3/4" |
| Style | A-Coil |
| AHRI Certificate Number | 204633302 |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Metal |
| Furnace Efficiency / AFUE | 80% |
| Blower Motor | Variable Speed |
| 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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