Review
The Goodman 4-ton heat pump arrives as a practical mid-range option for residential HVAC upgrades. Manufactured by Online Supply and bearing Goodman's reputation for reliability, this unit combines 18 SEER cooling efficiency with reversible heating capability. The variable-speed ECM blower motor, two-stage compressor design, and Energy Star certification position it squarely in the efficiency-conscious contractor and homeowner segment, offering meaningful savings without premium pricing.
Performance specs tell a solid story here. The unit delivers 47,000 BTU for both cooling and heating, adequate for most 4-ton applications. The 18 SEER1 rating reflects competitive efficiency for this tonnage class, and the two-stage design means the compressor operates at reduced capacity during mild weather, reducing runtime and electrical draw. Maximum CFM of 2,000 from the variable-speed blower keeps air moving without excessive noise or energy waste.
Pros & Cons
Pros
- 18 SEER efficiency rating meets Energy Star standards and qualifies for rebates in many regions
- Variable-speed ECM blower motor adjusts CFM up to 2,000 for comfort and energy savings
- Two-stage compressor allows the unit to run at reduced capacity during mild weather, lowering utility costs
- 47,000 BTU cooling and heating capacity handles 4-ton loads reliably in most residential applications
- 10-year warranty with online registration provides solid coverage for parts and compressor protection
Cons
- 73 dBA noise level is moderate and may be noticeable during operation in quiet residential settings
- R410A refrigerant pricing and service availability varies by region, affecting long-term maintenance costs
- Requires proper electrical setup with 208/230V single-phase supply and 29-50 amp breaker sizing
Who Should Buy
Best For
Contractors looking for a reliable mid-efficiency heat pump for residential retrofit jobs and homeowners in moderate climates seeking better cooling efficiency than single-stage units. This system is particularly suitable for properties where auxiliary electric heating will supplement the heat pump in severe cold.
Consider Alternatives If
Buyers in extremely hot climates who need maximum cooling capacity should consider higher tonnage units, and those seeking premium efficiency should explore 20+ SEER alternatives despite higher upfront costs.
Installation
This A-coil configuration supports both upflow and downflow installation, adapting to various furnace arrangements. Standard sweat fittings use 3/8-inch liquid and 1 1/8-inch suction lines, with pre-installed 1/2-inch insulation on the suction line. Electrically, it requires 208/230V single-phase 60 Hz service with breaker sizing between 29.3 and 50 amps. Field technicians benefit from comprehensive Goodman documentation including installation instructions and technical publications.
Warranty & Reliability
Goodman backs this unit with a 10-year parts and compressor warranty when registered online with the manufacturer. This duration is standard for Goodman equipment and provides meaningful protection against factory defects. Registration takes minutes and should be completed immediately after installation to activate coverage and document the purchase date.
Specifications
| SKU | LS381183850 |
| Brand/Manufacturer | Online Supply |
| Cooling BTU | 47,000 |
| Heating BTU | 47,000 |
| Refrigerant | R410A |
| Electrical | 208 / 230 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 73 |
| Weight (in lbs) | 48.000000 |
| Feature | Spec |
| Blower Motor | Variable Speed - ECM |
| Maximum CFM | 2,000 |
| Electric Backup Heat Capabilities (Optional) | 3 Kilowatts, 5 Kilowatts, 6 Kilowatts, 8 Kilowatts, 10 Kilowatts, 15 Kilowatts, 20 Kilowatts |
| Max Breaker Size | 50 amps |
| Tonnage | 4 Ton |
| Height | 38.25" |
| Width | 35.5" |
| Depth | 35.5" |
| Resources | Goodman Customer Brochure Goodman Installation Instructions Goodman Parts Manual Goodman Specifications Goodman Technical Information Goodman Technical Installation Goodman Technical Publication 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 / Downflow |
| Liquid Line | 3/8" |
| Suction Line | 1 1/8" |
| Style | A-Coil |
| Product Features | Rebate Available, Two Stage Condenser |
| Energy Star | Yes |
| SEER1 (Efficiency) | 18 |
| Condenser Stages | Two Stage |
| Compressor Type | Scroll |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 1 1/8" |
| Min. Breaker Size | 29.3 amps |
| Valve Type | Sweat |
| Suction Line Insulation Thickness | 1/2" |
| Length | 50 feet |
Frequently Asked Questions
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