Review
The Goodman 3-ton horizontal system is a straightforward mid-market offering designed for installations where space is limited. At $2,053, it slots into the value tier of the market, targeting contractors who need dependable equipment without premium pricing. This unit combines an 80,000 BTU furnace with a 36,000 BTU (3-ton) air conditioner in a compact horizontal footprint, measuring 21 inches tall by 21.125 inches wide by 26 inches deep. The aluminum A-coil design and scroll compressor represent proven industrial components rather than cutting-edge technology.
Performance metrics are honest without being exceptional. The furnace delivers 80% AFUE efficiency through a two-stage burner that adjusts output based on heating demand, burning either natural gas or propane. The air conditioner achieves 14 SEER cooling efficiency with single-stage compressor operation and a scroll compressor using R410A or R22 refrigerant. Maximum airflow reaches 2,000 CFM via a variable-speed blower motor, which helps manage the 73 dBA noise level better than fixed-speed alternatives. These numbers place it comfortably above bare-minimum efficiency but well below premium 16+ SEER systems.
Pros & Cons
Pros
- 80% AFUE furnace with two-stage burner delivers reliable heating across variable weather conditions
- 14 SEER cooling rating exceeds baseline efficiency at this price point
- Variable-speed blower motor reduces runtime noise (73 dBA) and improves comfort consistency
- Horizontal configuration fits attics and crawlspaces where upflow isn't possible
- Scroll compressor is proven technology with lower failure rates than reciprocating designs
- 10-year warranty with online registration provides solid peace-of-mind coverage
Cons
- Not ENERGY STAR certified, meaning higher long-term operating costs versus 16+ SEER systems
- 80% AFUE leaves efficiency gains on the table compared to 95%+ AFUE condensing furnaces
- Single-stage cooling condenser means less granular capacity modulation on mild days
- 73 dBA noise level is noticeably louder than higher-tier competitors with variable compressors
Who Should Buy
Best For
Homeowners with space constraints who need a horizontal configuration, and budget-conscious contractors installing in rental properties or flip scenarios. You prioritize affordability and acceptable efficiency over premium features and lowest operating costs.
Consider Alternatives If
Anyone seeking ENERGY STAR certification, builders in cold climates who need condensing furnaces, or homeowners planning 15+ year ownership where higher efficiency justifies the upfront premium.
Installation
This horizontal configuration requires mounting in an attic or crawlspace with sufficient clearance for the 26-inch depth and 21-inch height. You'll need metal exhaust flue for the furnace, 208/230V single-phase electrical service, and 18.7 to 30-amp breaker sizing. Refrigerant lines require 3/4-inch insulation on the suction line and extend up to 30 feet from the outdoor condenser. Installation is straightforward if your space allows horizontal orientation, but adapting to different configurations adds labor cost.
Warranty & Reliability
The 10-year parts warranty activates with online registration, covering compressor, coil, and furnace components equally. This is solid mid-tier protection that matches most mainstream brands. However, the warranty is not transferable to subsequent owners, which matters for resale value. Extended labor coverage isn't mentioned in standard terms, so verify with your installer whether they back the installation.
Specifications
| SKU | LS38343830 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 36,000 |
| Heating BTU | 80,000 |
| Refrigerant | R410A or R22 |
| Electrical | 208 / 230v 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 73 |
| Weight (in lbs) | 35.000000 |
| Feature | Spec |
| AHRI Certificate Number | 204633302 |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Metal |
| Furnace Efficiency / AFUE | 80% |
| Blower Motor | Variable Speed |
| Maximum CFM | 2000 |
| Configuration | Horizontal |
| Burner Stages | Two |
| Fuel Type | Propane, Natural 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. |
| 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 |
| Style | A-Coil |
| Suction Line Insulation Thickness | 3/4" |
| Length | 30 feet |
Frequently Asked Questions
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