Uninex KoolZone N407-TC Review: A Certified 8,920 BTU Spot Cooler
Uninex's KoolZone N407-TC is an 8,920 BTU, 0.7 ton spot cooler with a 9.22 CER rating, ETL certification and a built-in evaporator for indoor or outdoor use.
By Daniel Brooks
Updated November 1, 2026
The Uninex KoolZone N407-TC Spot Cooler is an 8,920 BTU, 0.7 ton industrial spot cooler with a 9.22 CER efficiency rating, ETL certification and a built-in evaporator, made for indoor and outdoor use. For more models, see our Portable Spot Coolers page.
Our Verdict
The N407-TC is the safe all-round pick in spot cooling. It is certified, efficiency rated and listed with the California Energy Commission, and its built-in evaporator keeps tank emptying to a minimum.
It weighs 88 pounds and does not list a noise level, and its capacity suits one work area rather than an open building.
Uninex KoolZone N407-TC Spot Cooler
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Key Specifications
| Feature | Specification |
|---|---|
| Brand | Uninex |
| Model | KoolZone N407-TC |
| Cooling | 8,920 BTU (0.7 ton) |
| Efficiency | 9.22 CER |
| Refrigerant | R410A |
| Certification | ETL, California Title 20 |
| Use | Indoor and outdoor |
| Condensate | Built-in evaporator |
| Weight | 88 pounds |
Design
The N407-TC arrives ready to roll out and plug in, with wheels for moving it between work areas. It is rated for indoor and outdoor use.
A dehumidification function and a built-in evaporator that removes most condensate make it practical for damp workshops and loading docks.
Controls
The controls are simple, which suits job sites where different people will use the unit.
Uninex lists compliance with California’s Title 20 rules and a listing with the California Energy Commission, plus R410A refrigerant in place of the banned R22.
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 N407-TC has a published efficiency rating and evaporates its condensate, while the SAC3000 adds twin oscillating ducts.
Against the KoolBase MSC407NE from the same company, the N407-TC is industrial grade and certified, while the KoolBase costs less and is aimed at consumers.
Pros and Cons
| Pros | Cons |
|---|---|
| 9.22 CER efficiency rating | 88 pounds |
| ETL certified | No noise figure listed |
| Built-in evaporator | Single work area capacity |
| Indoor and outdoor use | Costs more than consumer units |
| No assembly | Exhaust ducting needed indoors |
Who Should Buy It
| Who Should Buy It? | Who Should Look Elsewhere? |
|---|---|
| Workshops | Large warehouses |
| Loading docks | Tight budgets |
| Small equipment rooms | Stairs without help |
| Certified equipment needs | Bedrooms |
For more options, see our picks for the best portable spot coolers and the best mid-range spot coolers.
Final Verdict
The Uninex KoolZone N407-TC Spot Cooler is a certified, efficiency rated spot cooler that handles most of its own condensate and suits workshops and loading docks. You can check the current price and details for the Uninex KoolZone N407-TC Spot Cooler.
Frequently Asked Questions
How many BTU is the Uninex N407-TC?
8,920 BTU, or 0.7 ton.
What is its efficiency rating?
Uninex lists a 9.22 CER.
Does it need to be drained?
A built-in evaporator removes most condensate.
Can it be used outdoors?
Yes, it is rated for indoor and outdoor use.
How heavy is it?
88 pounds.
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.