Uninex KoolZone SAC4500 Review: A 1.3 Ton Spot Cooler with Oscillating Twin Ducts
Uninex's KoolZone SAC4500 is a 15,358 BTU, 1.3 ton spot cooler with oscillating twin ducts, a 9.88 CER rating, R-32 refrigerant and a 110V supply.
By Daniel Brooks
Updated November 1, 2026
The Uninex KoolZone SAC4500 Spot Cooler is a 15,358 BTU, 1.3 ton industrial spot cooler with twin oscillating ducts, a 9.88 CER efficiency rating, ETL certification and R-32 refrigerant on a 110V supply. For more models, see our Portable Spot Coolers page.
Our Verdict
The SAC4500 is the KoolZone to buy when one ton is not quite enough. It is one of the few spot coolers in its class with a published efficiency rating, and the oscillating ducts spread cold air across a work line instead of one spot.
Its one real catch is the outlet: it runs on 110V but needs a 20 amp breaker and a 5-20P plug. Check your circuit before you order.
Uninex KoolZone SAC4500 Spot Cooler
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Key Specifications
| Feature | Specification |
|---|---|
| Brand | Uninex |
| Model | KoolZone SAC4500 |
| Cooling | 15,358 BTU (1.3 ton) |
| Efficiency | 9.88 CER |
| Ducts | Twin, oscillating through 95 degrees |
| Power | 110V, 20 amp breaker, NEMA 5-20P plug |
| Refrigerant | R-32 |
| Certification | ETL, California Title 20 |
| Condensate | Built-in evaporator |
Design
Twin cool ducts swing through 95 degrees, so the cold air sweeps across a counter, a bench or a row of people. The unit needs no assembly and is rated for indoor and outdoor use.
A built-in evaporator removes most of the condensate it collects, and a dehumidification function helps in damp spaces. The refrigerant is R-32, which replaces the ozone depleting R22.
Controls
Uninex keeps the controls simple, with the oscillation feature doing most of the work of spreading the air. Set it, aim the ducts and let it run.
Uninex lists ETL certification and compliance with California’s Title 20 rules, which matters for businesses that need certified equipment.
Placement Tips
Put the cold air outlet within a few feet of the people or equipment you want to cool, and point the hot exhaust away from them. Indoors, run the exhaust to a drop ceiling, an open doorway or an exterior vent, otherwise the unit only moves heat around the room.
Leave open space around the intake so the unit can breathe, keep it on a level floor, and plug it straight into a grounded outlet on a circuit that is not shared with large tools. Outdoors, keep it out of standing water and under a roof or canopy unless the listing gives it a weather rating.
Running Costs and Care
Running cost depends on how many hours a day the compressor runs and on your electricity rate. Spot coolers draw far more power than a fan but far less than cooling a whole building, which is why they make sense for one work area or a short summer peak.
Clean or wash the air filter often, especially in dusty shops, and check the condenser coil for dirt and lint at the start of each season. Empty the condensate tank or check the drain line regularly, and before storing the unit, run it in fan mode to dry it out and drain all remaining water.
How It Compares
Against the Uninex KoolZone SAC3000, the SAC4500 cools more and adds a higher efficiency rating, while the SAC3000 runs from a normal 10 amp outlet.
Against one ton industrial units from brands like INTSUPERMAI, the Uninex has certifications and an efficiency rating, while those units offer bigger tanks and run on ordinary outlets.
Pros and Cons
| Pros | Cons |
|---|---|
| 15,358 BTU (1.3 ton) | Needs a 20 amp circuit |
| 9.88 CER efficiency rating | NEMA 5-20P plug |
| Oscillating twin ducts | No noise figure listed |
| Built-in evaporator | No weight listed |
| ETL certified | Premium price |
Who Should Buy It
| Who Should Buy It? | Who Should Look Elsewhere? |
|---|---|
| Shops with 20 amp circuits | Homes with 15 amp outlets |
| Production lines | Single workstations |
| Stores and counters | Tight budgets |
| Certified equipment needs | Quiet offices |
For more options, see our picks for the best Uninex KoolZone spot coolers and the best commercial portable air conditioners.
Final Verdict
The Uninex KoolZone SAC4500 Spot Cooler is an efficient, certified spot cooler with oscillating twin ducts for shops and work lines that have a 20 amp circuit. You can check the current price and details for the Uninex KoolZone SAC4500 Spot Cooler.
Frequently Asked Questions
How many BTU is the Uninex SAC4500?
15,358 BTU, or 1.3 tons.
What power does it need?
110V on a 20 amp breaker with a NEMA 5-20P plug.
What is its efficiency rating?
Uninex lists a 9.88 CER.
Can it be used outdoors?
Yes, it is rated for indoor and outdoor use.
Does it need to be drained?
A built-in evaporator removes most of the condensate.
About the author
Daniel Brooks is a home cooling editor at WikiCooling, covering window, portable, through-the-wall and mini-split air conditioners, fans, and dehumidifiers. He researches cooling capacity, energy efficiency, noise levels, installation requirements, and buyer feedback to help homeowners choose the right unit for their room size, climate, and budget.