Goodman GSZ130421-SD
Goodman GSZ130421-SD
Goodman GSZ130421-SD
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Goodman GSZ130421-SD
Goodman GSZ130421-SD

Goodman GSZ13 - 3.5 Ton - Heat Pump - 13 Nominal SEER - Single-Stage - R-410a Refrigerant (Scratch & Dent)



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Goodman GSZ13 - 3.5 Ton - Heat Pump - 13 Nominal SEER - Single-Stage - R-410a Refrigerant (Scratch & Dent)
Goodman GSZ13 - 3.5 Ton - Heat Pump - 13 Nominal SEER - Single-Stage - R-410a Refrigerant (Scratch & Dent)
Model: GSZ130421-SD
Was $1,987.00
Product Discontinued
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Recommended Accessories

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Expert Recommended Accessories Selected by Ken, our Expert
Required Accessories 9
These accessories are required to properly setup/install this product.
Optional Accessories 10


    ***Scratch & Dent*** Dented Housing, Minor Fin Damage.

    Goodman established itself as the largest HVAC manufacturer in the US by producing high-quality, efficient equipment and providing it to homeowners at a great value. The GSZ13 heat pump has a nominal SEER rating of 13 and a minimum HSPF of 7.7 to ensure efficient comfort regardless of your application. The savings don't stop at energy costs; the GSZ130421's design allows it to be quickly installed and serviced. It also includes advanced components that protect the coil and compressor to ensure reliable operations and peace of mind. Become a heat pump household today, and enjoy efficient comfort from a single piece of equipment through all four seasons.

    Product Features

    Quiet Comfort
    Goodman takes great pride in providing comfort that doesn't disrupt your home. The louvered top and three-bladed condenser fan of the GSZ130421 were designed to reduce noise levels without compromising performance. This model also has a high-capacity discharge muffler to curtail vibrational noise.

    Filter Drier
    A biflow filter drier is installed in the liquid line of this heat pump. It serves two important purposes: removing moisture and trapping impurities. This prevents corrosion, freezing, and blockages that can negatively impact the operation of the heat pump.

    Secure Cabinet
    The cabinet of the GSZ130421 is built to last. Galvanized steel construction, a durable powder paint finish, rust-resistant screws, and a steel coil guard protect your equipment from wear and tear, increasing its longevity.

    Goodman's SmartShift technology, combined with ambient and coil temperature sensors, gives this unit a quiet and effective defrost system. SmartShift also helps to prevent short-cycling, increasing the efficiency of defrost operations.

    High-Efficiency Compressor
    This unit utilizes a high-efficiency scroll compressor to provide refrigerant flow. Scroll compressors are renowned for operating more smoothly and reliably than traditional compressors.

    Compressor Protection
    Goodman installed two layers of compressor protection in the GSZ130421. A suction accumulator collects excess liquid refrigerant, preventing it from flooding and damaging the compressor during operation. A crankcase heater ensures that the compressor stays well-oiled by maintaining a compressor temperature that discourages oil migration.

    Product Note

    Compliance with US Federal Regional Efficiency Standards is dependent on the rated efficiency of your entire system, not the nominal efficiencies of individual components. If you are unsure if your system will be compliant, please confirm before purchasing by calling us at 866-554-4328 or email us at

California residents see
WARNING: Cancer and Reproductive Harm -
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specs product image PID-143390
General Information
Heat Pump
Product Line
Operating Mode Learn More
Operating Mode
Some products are only capable of cooling, while others can either heat or cool a space. Some products heat via "heat pump" technology while others use electric heating elements. Learn More
Cooling & Heating
Refrigerant Type
Installation Location
Compressor Stages Learn More
Compressor Stages
Stages are the distinct levels of output that an air conditioner or heat pump can deliver. Having more than one stage allows the equipment to better match the needs of the space and deliver better comfort and more efficiency.
Single Stage
DOE Regional Compliance Learn More
DOE Regional Compliance
In 2015, the US Department of Energy broke the country into three regions - North, Southeast, and Southwest - and set legal standards for energy efficiency within each region. Learn More
Capacity Learn More
Tonnage, or tons of cooling, is a short hand method for describing the capacity of cooling equipment. One ton is equal to approximately 12 kBTU/hr.
3.5 Tons
Nominal Cooling Capacity
42000 BTU
Heating BTU
Maximum Sound Level Learn More
Maximum Sound Level
Sound levels are measured in decibels (dB). The lower the decibel rating, the less noise the product makes. As an example, a ticking watch is 20 dB while on the other end of the scale, a lawn mower is around 90 dB. Learn More
74 dB
Nominal SEER Learn More
Nominal SEER
SEER (Seasonal Energy Efficiency Ratio) is a measurement of cooling efficiency over a typical cooling season. It is useful for comparing energy efficiency of cooling systems. The higher the SEER, the more energy efficient the system. Actual SEER may differ from Nominal SEER depending on the products used in a particular system.
Electrical Data
208-230 Volts
60 Hz
Minimum Circuit Ampacity
23.9 Amps
Recommended Breaker Size
40 Amps
Product Height
38 1/4 Inches
Product Width
29 Inches
Product Depth
29 Inches
Product Weight
202 Pounds
Shipping Weight
220 Pounds
Liquid Valve Connection Size
3/8 Inch
Suction Valve Connection Size
7/8 Inch
ETL Listed
AHRI Certified
ISO Certified
Warranty Information
Parts Warranty Learn More
Parts Warranty
A warranty is a safeguard from defects in manufacturing and can vary in length and terms. Some manufacturers require registration for extended warranty benefits, be sure to check out features and the warranty document. To see the manufacturer's warranty statement, click on the Manuals tab. Learn More
5 Years


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Goodman GSZ13 - 3.5 Ton - Heat Pump - 13 Nominal SEER - Single-Stage - R-410a Refrigerant (Scratch & Dent)
Goodman GSZ130421-SD
Goodman GSZ130421-SD
Goodman GSZ130421-SD
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