Review
The Goodman GSZ160181 occupies the practical middle ground in the residential heat pump market. At 1.5 tons with 18,000 BTU capacity, it targets smaller homes, apartments, and addition retrofits where oversizing creates inefficiency. Goodman's reputation for straightforward, serviceable designs extends here, and the open-box pricing at $1829 undercuts typical retail by 10 to 15 percent, making this competitive against comparable Bryant or Carrier units at full market rates.
The 16 SEER1 rating translates to real energy savings, typically reducing cooling costs 15 to 20 percent versus 13 SEER baseline equipment. Both heating and cooling deliver identical 18,000 BTU output, making this a true dual-purpose unit for climates requiring year-round operation. The scroll compressor runs quieter than reciprocating types and tolerates slugs of liquid refrigerant better, reducing warranty claims. Single-stage operation means the compressor runs full capacity when active, sacrificing modulating efficiency for lower upfront cost and simpler controls.
Pros & Cons
Pros
- 16 SEER1 rating qualifies for ENERGY STAR, delivering measurable efficiency above baseline units
- Scroll compressor design reduces moving parts, improving longevity compared to reciprocating alternatives
- 18,000 BTU cooling and heating capacity handles small to mid-sized homes effectively
- Single-stage operation keeps electrical requirements modest at 12.4 to 20 amps maximum
- Standard sweat valve connections simplify integration with existing ductwork and piping
- 10-year warranty with online registration provides solid coverage for residential applications
Cons
- 72 dB noise level is moderately loud, comparable to a busy restaurant, affecting outdoor living spaces
- Single-stage compressor lacks modulation, cycling on and off rather than varying capacity for efficiency
- Open-box condition may indicate previous handling or minor cosmetic damage not detailed in listing
Who Should Buy
Best For
Homeowners with 1.5-ton systems needing condenser replacement or contractors restocking reliable mid-tier equipment will find strong value here. The 16 SEER efficiency and manageable electrical footprint make this ideal for modest residential applications where performance and cost balance matters.
Consider Alternatives If
Buyers seeking ultra-quiet operation or variable-speed compressor technology should look at two-stage or modulating units, which command higher prices but deliver better noise control and partial-load efficiency.
Installation
This unit requires standard 208/230V single-phase power with a 12.4 to 20-amp breaker, making it compatible with most existing residential electrical panels. The 3/8 inch liquid and 3/4 inch suction connections use sweat fittings, so installers need basic soldering skills. At 189 pounds and 29x29x36 inches, positioning in concrete pads or mounting brackets demands moderate labor. Proper refrigerant charge and superheat calibration remain critical to achieving rated SEER1 performance.
Warranty & Reliability
Goodman backs this unit with a solid 10-year parts warranty, activated through online registration. This covers compressor, coils, and electrical components, standard for the brand. Registration takes minutes and protects you if defects emerge. Labor and refrigerant replacement typically fall outside coverage, so factor service costs into long-term budgeting.
Specifications
| SKU | GSZ160181 |
| Brand/Manufacturer | Goodman |
| Cooling BTU | 18,000 |
| Heating BTU | 18,000 |
| Refrigerant | R410A |
| Electrical | 208 / 230 V. 1 Phase 60 Hz |
| Warranty | 10 Years with Online Registration |
| Decibel Level (dBA) | 72 |
| Weight (in lbs) | 189.000000 |
| Feature | Spec |
| Energy Star | Yes |
| SEER1 (Efficiency) | 16 |
| Condenser Stages | Single Stage |
| Compressor Type | Scroll |
| Liquid Valve Size | 3/8" |
| Suction Valve Size | 3/4" |
| Max Breaker Size | 20 amps |
| Min. Breaker Size | 12.4 amps |
| Tonnage | 1.5 Ton |
| Valve Type | Sweat |
| Height | 36" |
| Width | 29" |
| Depth | 29" |
| Resources | Goodman Specifications Goodman Customer Brochure Goodman Installation Instructions Goodman Kit Instructions Goodman Parts Manual Goodman Service Manual 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. |
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.