Review
The Goodman 3-ton horizontal furnace and air conditioner system represents a practical choice for contractors and homeowners balancing efficiency with cost. This unit combines a 97% AFUE furnace with 18 SEER2 cooling capacity, positioning it as a legitimate upgrade from 14 SEER predecessors. The modulating burner and two-stage condenser give it flexibility across different heating and cooling demands, while the horizontal configuration makes it ideal for tight attic or basement spaces where traditional vertical units won't fit.
Performance specs here are genuinely strong. The furnace delivers 80,000 BTU heating output with 97% efficiency, meaning minimal wasted fuel. The cooling side provides 35,000 BTU (3-ton) capacity at 18 SEER2 using R410A refrigerant and a scroll compressor. The variable-speed ECM blower handles up to 1,200 CFM and adjusts based on demand, reducing idle energy consumption. These specifications support Energy Star certification and typically qualify for utility rebates in many states.
Pros & Cons
Pros
- 97% AFUE furnace efficiency is among the highest available, reducing heating costs significantly
- 18 SEER2 cooling efficiency qualifies for Energy Star certification and rebates in many regions
- Modulating burner and two-stage condenser provide comfort through variable heating and cooling capacity
- Variable-speed ECM blower motor adjusts automatically for comfort and reduced electricity draw
- Horizontal configuration fits tight spaces where vertical units won't work
- PVC exhaust allows flexible venting without costly masonry modifications
Cons
- Price of $89 appears unusually low, raising questions about whether this reflects a complete system or components only
- 71 dB noise level is moderately loud during operation, noticeable in adjacent rooms
- 10-year warranty requires online registration, which some owners forget or skip
Who Should Buy
Best For
Contractors installing efficient systems in homes with horizontal attic or basement space, and budget-conscious homeowners seeking 16+ SEER performance without luxury brand markup. This unit delivers measurable efficiency gains at accessible pricing.
Consider Alternatives If
Homeowners needing vertical cabinet units or those prioritizing whisper-quiet operation should explore alternatives with lower decibel ratings.
Installation
Horizontal installation requires proper ductwork connections at both sides and adequate clearance for service access. The unit accepts plastic PVC exhaust venting, eliminating expensive chimney modifications. Electrical needs are straightforward, 208/230V single-phase 60Hz with a 21.3 to 35-amp breaker. Refrigerant lines use 3/8 inch liquid and 7/8 inch suction lines with 3/4 inch insulation. Proper linesets and coil matching are essential for reliability.
Warranty & Reliability
Goodman provides a 10-year parts warranty when you register online after installation. This coverage is competitive for mid-tier equipment but requires proactive registration to activate. The 10-year term protects against compressor and major component failures, though labor costs and refrigerant fall to the homeowner. Registration is free but critical.
Specifications
| SKU | LS38783850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 35,000 |
| Heating BTU | 80,000 |
| Refrigerant | R410A |
| Electrical | 208 / 230 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 71 |
| Weight (in lbs) | 30.000000 |
| Feature | Spec |
| AHRI Certificate Number | 7424270 |
| Airflow Direction | Downflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Product Features | Two Stage Condenser |
| Furnace Efficiency / AFUE | 97% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 1200 |
| Configuration | Horizontal |
| Flue Location | Right |
| Energy Star | Yes |
| Burner Stages | Modulating |
| 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. |
| SEER1 (Efficiency) | 18 |
| Condenser Stages | Two Stage |
| Compressor Type | Scroll |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 3/4" |
| Max Breaker Size | 35 amps |
| Min. Breaker Size | 21.3 amps |
| Tonnage | 3.5 Ton |
| Valve Type | Sweat |
| Liquid Line | 3/8" |
| Suction Line | 7/8" |
| Style | A-Coil |
| Suction Line Insulation Thickness | 3/4" |
| Length | 50 feet |
Frequently Asked Questions
Affiliate disclosure: IndustrialRank earns a commission on qualifying purchases at no extra cost to you. We only recommend products we have independently reviewed.