Review
The Goodman LS38343850 targets contractors and homeowners who need serious heating performance without the vertical footprint. This horizontal configuration model bundles a high-efficiency gas furnace with a 1.5 ton heat pump into one compact unit. At 96% AFUE, it delivers measurable savings on heating bills while maintaining respectable 14.5 SEER cooling. The unit qualifies as ENERGY STAR certified, appealing to efficiency-conscious buyers and contractors working on tighter project budgets.
Performance specs show 40,000 BTU total capacity split between 18,000 BTU heating and 18,000 BTU cooling output. The variable-speed ECM blower runs up to 1,200 CFM and adjusts based on actual demand, avoiding the energy waste of fixed-speed motors. Two-stage burner operation provides modulated heating rather than simple on-off cycling. However, the condenser remains single-stage, meaning cooling stays at one fixed capacity. This furnace accepts both natural gas and propane, offering installation flexibility without major modifications.
Pros & Cons
Pros
- 96% AFUE furnace efficiency cuts heating costs significantly compared to 80-90% models
- Variable-speed ECM blower adjusts to actual heating/cooling demand, reducing energy waste
- 14.5 SEER rating earns ENERGY STAR certification for measurable cooling efficiency
- Horizontal configuration fits tight installation spaces where standard upflow units can't work
- Two-stage burner provides modulated heating for better comfort and efficiency control
- Dual fuel flexibility handles natural gas or propane without system redesign
Cons
- Spec sheet lists conflicting tonnage values, 1.5 ton in product title but 3 ton in specs, creating confusion
- Single-stage condenser limits cooling efficiency optimization compared to two-stage compressors
- 70 dB noise level runs louder than some premium competitors in the same class
- Warranty requires online registration, which many users skip and lose coverage
Who Should Buy
Best For
Contractors installing systems in space-constrained homes, particularly attics or crawlspaces where horizontal orientation is mandatory. Homeowners in moderate climates wanting to maximize heating efficiency while keeping cooling performance competitive without premium pricing.
Consider Alternatives If
Anyone needing a true 1.5 ton system should verify actual capacity specs before purchase, as documentation appears inconsistent. Buyers prioritizing quietest operation should explore units rated below 68 dB.
Installation
Horizontal mounting requires adequate clearance in crawlspaces, attics, or basement corners, typically 26 inches deep and 21.125 inches tall. PVC exhaust flue setup simplifies venting compared to metal ducts. The unit needs 208/230V single-phase power at 11.8 to 20 amps, standard in most homes. Proper refrigerant line sizing matters, using 3/8 inch liquid and 3/4 inch suction lines with 3/4 inch insulation to prevent condensation.
Warranty & Reliability
Goodman covers parts for 10 years after online registration at no charge. Registration is straightforward but essential, as unregistered units typically default to shorter coverage periods. This length rivals many competitors in the mid-tier category. However, labor costs and service calls remain the buyer's responsibility, so factor in local HVAC service rates when budgeting.
Specifications
| SKU | LS38343850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 18000 |
| Heating BTU | 18000 |
| Refrigerant | R410A or R22 |
| Electrical | 208 / 230 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 70 |
| Weight (in lbs) | 22.000000 |
| Feature | Spec |
| AHRI Certificate Number | 7368841 |
| Airflow Direction | Upflow/Horizontal |
| Exhaust Flue Requirement | Plastic / PVC |
| Product Features | Rebate Available |
| Furnace Efficiency / AFUE | 96% |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 1200 |
| Configuration | Horizontal |
| Energy Star | Yes |
| Burner Stages | Two |
| Fuel Type | Propane, Natural Gas |
| Height | 21.125" |
| Width | 17.5" |
| 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 | GSZ140191 |
| SEER1 (Efficiency) | 14 |
| Condenser Stages | Single Stage |
| Compressor Type | Rotary |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 3/4" |
| Max Breaker Size | 20 amps |
| Min. Breaker Size | 11.8 amps |
| Tonnage | 3 Ton |
| Valve Type | Sweat |
| Liquid Line | 3/8" |
| Suction Line | 3/4" |
| Style | A-Coil |
| Suction Line Insulation Thickness | 3/4" |
| Length | 50 feet |
Frequently Asked Questions
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