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SunStar Solar Freezer 15CU ST-15CF
$1,604.00 - $1,696.00
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Availability: In Stock. Secure yours TODAY!
Capacity: 15 Cu Ft / 425 Liter Capacity
Exterior Dimensions: W 63.75 x H 37.75 x D 30.75
- Standard Freight ($235): 📞 Call us for a shipping quote to AK, CO, HI, and MT, or to order more than one unit.
- 100% American Made: Superior build quality ensures your appliance arrives ready for years of dependable service.
- Risk Free Purchase: Backed by SunStar’s comprehensive 2-Year Performance Warranty.
- Off-Grid & Solar Ready: Native 12V/24V DC operation connects directly to your battery bank.
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- Description
- Shipping, Returns & Warranty
- Best Price Guarantee!
- Why Buy From Us
- Warranty & Support
Description
SunStar Solar Chest Freezer 15CU ST-15CF
Available in AC & DC — Built for Off-Grid Living
Power your off-grid lifestyle with the SunStar Solar Chest Freezer — an American-made, high-efficiency 15 cubic-foot freezer engineered for homesteads, remote cabins, RVs, and anywhere you need dependable solar-powered cold storage.
Whether you choose the AC model for flexible grid-or-solar operation or the DC model for pure solar independence, both deliver the same massive 445-liter capacity with ultra-thick insulation and solar-optimized compressor technology.
- ✓ Made in the USA
- ✓ 15.7 Cu Ft / 445 Liter Capacity
- ✓ Multi-Function Thermostat: Freeze or Refrigerate
- ✓ 4.6" Polyurethane Wall Insulation
- ✓ Available in AC (115V) or DC (12V/24V Auto)
Engineered for True Off-Grid Performance
Solar-Ready Design
The DC model runs directly off 12V or 24V solar systems with automatic voltage detection. The AC model supports both grid power and solar-sourced AC power for maximum flexibility.
Superior Insulation
A massive 4.6" polyurethane wall insulation keeps temperatures stable and dramatically reduces compressor run time — maximizing energy efficiency and minimizing draw on your solar bank.
Built for the Way You Live Off-Grid
Dual-Mode: Freeze or Refrigerate
The multi-function thermostat lets you switch between deep-freeze and refrigeration modes, giving you complete control over how you store your food, produce, or game meat.
Built-In Lid Light & Status Indicators
A convenient built-in lid light illuminates the interior for easy access in low light. Dedicated operating indicator lights make troubleshooting fast and intuitive, even in remote settings.
High Efficiency, Low Power Draw
The super-high-efficiency compressor is optimized for solar operation. The AC model draws just 80W at 0.69A; the DC model draws 90W — both designed to run reliably even during low-sun periods.
Mobile & Heavy-Duty
Pre-installed heavy-duty castors let you move this large-capacity freezer with ease — indoors, in a barn, or between outbuildings. Built with a corrosion-resistant exterior that withstands the elements.
Choose Your Model
AC Model 
15CU AC Chest Freezer▼ Click to view details
- Runs on 115V AC / 60Hz.
- Ideal for homesteads, cabins, and homes looking to slash electricity bills by integrating solar AC power while maintaining grid backup.
- Rated at 80W typical draw.
DC Model 
15CU DC Chest Freezer▼ Click to view details
- Powered directly by 12V or 24V DC solar systems — no inverter required.
- Built for full off-grid independence in RVs, remote cabins, and locations with no grid access.
- Rated at 90W typical draw.
Massive Capacity. Precision Cold.
The ST-15CF opens wide for easy loading of bulk groceries, garden harvest, large game, or emergency food supplies. The interior is sized at 54.25" W × 19.5" D × 27.375" H — spacious enough for serious long-term storage.
Consistent temperature is maintained even during power fluctuations thanks to the reinforced insulation and solar-optimized compressor, ensuring your food stays safe no matter what the weather does.
Technical Specifications
| Specification | AC Model (ST-15CF-AC) | DC Model (ST-15CF-DC) |
|---|---|---|
| Origin | Made in the USA | Made in the USA |
| Power Source | 115V AC / 60 Hz | Automatic 12V or 24V DC |
| Fuse Rating | 15 Amp | 15 Amp |
| Typical Power Draw | 80W / 0.69A | 90W |
| Total Volume | 445 Liters / 15.7 Cu Ft | |
| Cooling System | Direct Cooling | |
| Refrigerant | R134A | |
| Wall Insulation | 4.6" Polyurethane | |
| Temperature Control | Multi-Function Thermostat (Freeze / Refrigerate) | |
| Interior Dimensions (in) | W 54.25 / H 27.375 / D 19.5 | |
| Exterior Dimensions (in) | W 63.75 / H 37.75 / D 30.75 | |
| Additional Features | Built-In Lid Light, Operating Indicator Lights, Pre-Installed Heavy-Duty Castors | |
SunStar Solar Chest Freezer FAQs
What is the difference between the AC and DC models?
The AC model (ST-15CF-AC) runs on 115V AC / 60 Hz power, making it compatible with both standard grid electricity and solar-sourced AC power through an inverter. The DC model (ST-15CF-DC) connects directly to 12V or 24V DC solar systems — no inverter required — making it ideal for fully off-grid setups like remote cabins, RVs, or boats.
How much capacity does the ST-15CF have?
Both the AC and DC models offer 445 liters (15.7 cubic feet) of storage space. The interior measures 54.25" wide × 19.5" deep × 27.375" high, giving you plenty of room for bulk groceries, large game, garden produce, or emergency food supplies.
Can the SunStar Chest Freezer also be used as a refrigerator?
Yes. The multi-function thermostat lets you switch between deep-freeze and refrigeration modes, giving you flexibility to store either frozen goods or fresh produce depending on your needs at any time.
How energy-efficient is it on a solar system?
Both models are engineered for super-high efficiency. The AC model draws approximately 80 watts (0.69A) and the DC model draws approximately 90 watts under typical operating conditions. The 4.6" polyurethane wall insulation dramatically reduces compressor run time, minimizing the draw on your solar battery bank.
Does the DC model work with both 12V and 24V systems?
Yes. The DC model features automatic 12V or 24V operation — it detects your system voltage automatically, so there is no manual switching required. This makes it compatible with the majority of solar setups.
Is this freezer difficult to move or reposition?
No. The ST-15CF comes with heavy-duty castors pre-installed at the factory, making it easy to roll and reposition despite its large size. This is especially useful in barn, garage, or outbuilding installations where you may occasionally need to move it.
What refrigerant does the ST-15CF use?
Both models use R134A refrigerant, a widely available and well-understood refrigerant that supports reliable operation across a broad range of ambient temperatures.
Shipping, Returns & Warranty
- Standard Freight Shipping — $235: Shipping to AK, CO, HI, or MT, or ordering more than one unit? Call us at 1-844-945-3625 for a custom shipping quote.
- Hassle-Free Returns: Not what you expected? Return any unopened item within 30 days — you just cover the return shipping.
- Built to Last: Every SunStar Solar Chest Freezer is backed by a manufacturer's warranty. Contact us for full warranty details.
The SunStar Guarantee — We know you're going to LOVE your SunStar! If things aren't perfect, here is our promise to you:
- Arrives Perfect: If your item arrives defective or incorrect, let us know within 14 days and we will gladly work with SunStar to replace it.
- Final Sale: Because SunStar is so confident in their product, they do not accept returns for buyer's remorse.
- Refused Deliveries: Packages refused at the door will incur a 15% restocking fee plus applicable shipping costs.
Best Price Guarantee!
Best Price Guarantee
You'll get the best price available at Wild Oak Trail! We'll match anyone who has it lower!
We love to chat! Give us a call and we'll see what we can do to get you the best deal!
Conditions of our 100% Price Match Guarantee:
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Contact us to discuss the Price Match so we can look up the competitors price
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Buy one, get one free offers and Rebates are not eligible
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The item must be in stock on the competitors website
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The competitor must be an online store, not a retail location
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The website can't be a discounter or auction website ( such as eBay, overstock, etc.)
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The company must be an Authorized Retailer of the product in question
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The Price Match Guarantee is based on the final price of the product including shipping and taxes
Why Buy From Us
Why Buy From Wild Oak Trail?
We’re a family-run business. My Wife Hailey and I run this business with our small staff of 3 awesome people. When you shop with Wild Oak Trail, you're supporting real people, not a big corporation.
We truly care. We’re here before, during, and after your purchase. Good products and great service—that’s how we earn your trust. We see and celebrate EVERY sale that comes in!
We choose quality. If we wouldn’t use it ourselves, we won’t offer it. Our goal is to make you happy enough to tell your friends.
Thanks for supporting our family and being part of the Wild Oak Trail community!
Warranty & Support
SunStar® Solar Appliance Warranty Policy
Your Coverage & Protection At Wild Oak Trail, we stand behind the quality of the products we carry. Your SunStar® solar freezer or refrigerator is backed by a limited manufacturer’s warranty protecting you against defects in materials and workmanship. This coverage remains valid for the specific duration listed on your product’s documentation, beginning on your original date of purchase.
Service & Resolutions If a manufacturing defect is discovered within the warranty period, SunStar® reserves the right to repair or replace the defective unit or component at their discretion. Any repairs or replacements will be completed using new or refurbished parts that meet or exceed the original factory quality standards.
What Is Not Covered (Exclusions) To ensure your coverage remains valid, please use the unit as intended. This warranty does not cover damage resulting from:
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User Action: Misuse, negligence, accidental damage, improper installation, or unauthorized modifications.
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External Events: Power surges, natural disasters, or other "Acts of God."
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Consumables: Routine wear items such as light bulbs or batteries are not included in this warranty.
How to Initiate a Claim We are here to help you facilitate this process. To start a warranty claim, please have the following information ready:
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Model Number
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Serial Number
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Proof of Purchase (Receipt showing date and place of purchase)
Once you have these details, please contact the Wild Oak Trail support team directly. We will document your issue and guide you through the next steps to get your unit back up and running.