60 Years of Portable Cooling Expertise
Trusted across industries, Koldwave® offers reliable temporary air-conditioning solutions for critical and demanding environments.
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Rugged Portable Cooling with Koldwave® Portable Air Conditioners
Koldwave® portable air conditioners deliver reliable, high-performance spot cooling for the full spectrum of commercial and industrial cooling challenges — from emergency HVAC backup and server room protection to factories, construction sites, manufacturing floors, hospitals, commercial kitchens, and outdoor events. With more than 60 years of experience, Koldwave is an industry leader in reliable portable spot cooling solutions, dedicated to providing the right temporary air-conditioning solutions for fleet and job-specific applications where fixed HVAC systems are unavailable, overwhelmed, or simply not an option.
Why Choose Koldwave® Portable Air Conditioners
Koldwave isn't built for comfort — it's built for consequence. When a primary HVAC system fails in a data center, a hospital, a server room, or a commercial facility, the cost of overheating isn't discomfort — it's equipment failure, production downtime, data loss, and lost revenue. In a telecommunications room, an overheated space means downed systems. On a commercial construction site, it means halted work and safety violations. Koldwave has built a reputation on reliable, rugged portable air- and water-cooled solutions built to withstand the most extreme conditions — making them the go-to choice for temporary and supplemental cooling across offices, server rooms, factories, and the most challenging commercial and industrial settings alike. With cooling capacities from 6,300 to 144,000 BTU/HR and one of the longest warranties in the industry, Koldwave air conditioners are built to last in a variety of demanding environments — and they're quiet enough for an office, classroom, or conference room.
Over 60 years of commercial and industrial portable cooling expertise
Air-cooled and water-cooled configurations for any installation scenario
Capacities range from 6,300 BTU/HR for small offices and server closets to 144,000 BTU/HR for large industrial spaces
What Sets Koldwave® Apart Ready to Cool Right Out of the Truck?
In emergency and mission-critical cooling situations
In emergency and mission-critical cooling situations — a downed data center HVAC, an overheating server room, a stalled factory floor in summer heat — setup time costs money. Koldwave' s portable air conditioner solutions are made to take a pounding, ready to operate right out of the truck with durable systems that install quickly and easily in any light industrial, commercial, or office setting, yet offer quiet enough operation for occupied space applications. Heavy-duty casters and simple accessories mean units are deployed and operational in minutes, not hours — critical when every minute of downtime carries a price tag.
Air-Cooled or Water-Cooled
Whichever the Job Demands Not every space can accommodate exhaust ducting, and not every application has access to a water loop. Koldwave covers both scenarios with equal depth. In sealed server rooms, data centers, laboratories, and commercial spaces where ducting isn't possible, Koldwave water-cooled portable air conditioners are easy to use, require no ducting, and deliver efficient, contained cooling. The water-cooled models features quick-connect water hose connections for fast setup, and is ideal for small offices, laboratories, and light-industrial work areas. Where ducting warm air out is possible — factories, commercial facilities, construction buildings, and large open floor plans — air-cooled models offer more raw cooling power with no water supply required, covering capacities from 10,000 BTU/HR all the way to 144,000 BTU/HR in the commercial lineup.
Industrial-Grade Construction for 24/7 Commercial Demands
Industrial-Grade Construction for 24/7 Commercial Demands, Koldwave spot cooling units are among the industry's most rugged, designed to take all the abuse commercial customers dish out — standing up to any challenge, all the time, every time, giving customers 24/7 reliability in server rooms, factories, manufacturing floors, and commercial facilities operating around the clock. Thoughtful features like digital controls, washable filters, compressor overload protection, anti-freeze thermostats, self-diagnostic systems, and fiberglass internal insulation mean these units keep running when conditions get harsh — not shutting down when they're needed most.
Scalable from Small Server Closets to Large Industrial Facilities
Scalable from Small Server Closets to Large Industrial Facilities With cooling capacities ranging from 10,000 to 144,000 BTU/HR across the Koldwave lineup, there is a solution that satisfies the cooling requirements of virtually any commercial or industrial configuration. Current models include the 9KK21 (21,200 BTU/HR) and 9KK37 (37,000 BTU/HR) for commercial air-cooled applications, the KK92 (92,000 BTU/HR) for larger spaces, the 8HK60 (60,000 BTU/HR) industrial air-cooled unit, the 8HP16 air-cooled heat pump (16,800 BTU/HR cooling / 18,500 BTU/HR heating), and the 8WC18 water-cooled unit (18,000 BTU/HR) for duct-free installations.
Find the Right Koldwave® Portable Air Conditioner.
Explore available Koldwave® models based on your cooling capacity requirements, installation constraints, and whether air-cooled or water-cooled is more appropriate for your application. From compact water-cooled units for sealed server rooms and IT closets to large industrial air-cooled systems for factory floors and commercial construction sites, there's a Koldwave configured for the job — with no permanent installation required.
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Koldwave® Portable Air Conditioner Advantage
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60+ Years of Proven Reliability
Decades of commercial and industrial portable cooling experience behind every unit, backed by Mestek's rigorous manufacturing standards and trusted in data centers, hospitals, factories, and commercial facilities.
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Air-Cooled and Water-Cooled Options
Comprehensive coverage in both cooling technologies, with the 8WC12 water-cooled unit serving server rooms and spaces that can't be ducted, and the 9KK21, 9KK37, 8KK92, and 9HK60 air-cooled models covering commercial and industrial spaces that can.
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Emergency-Ready Design
Self-diagnostic systems, compressor off-timers to prevent short cycling, washable filters, and automatic restart capabilities ensure continuous operation through power events and harsh conditions — critical for data centers, hospitals, and mission-critical commercial facilities.
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Quiet Enough for Occupied Commercial Spaces
Engineered for industrial durability without the industrial noise level, suitable for offices, conference rooms, server rooms, laboratories, and commercial environments alongside factories and warehouses.
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Massive Capacity Range
From compact 10,000 BTU/HR water-cooled units for individual server closets and offices to 144,000 BTU/HR industrial systems for large commercial facilities and outdoor venues.
Koldwave® — Performance & Features
Cooling Technology
A comprehensive selection of rugged portable air-conditioning systems capable of addressing the full spectrum of temporary, supplemental, spot, and emergency HVAC cooling applications — including server room cooling, factory and manufacturing floor cooling, commercial facility backup, and construction site climate control — using R-454B refrigerant across the lineup.
Current Model Lineup
Air-Cooled Commercial AC: 9KK21 (21,200 BTU/HR), 9KK37 (37,000 BTU/HR), 8KK92 (92,000 BTU/HR); Air-Cooled Industrial AC: 9HK60 (60,000 BTU/HR); Air-Cooled Heat Pump: 8HP16 (16,800 BTU/HR cooling / 18,500 BTU/HR heating); Water-Cooled AC: 8WC24 (24,000 BTU/HR).
Heat Pump Models
The 8HP16 includes both cooling and heating capabilities in a single unit — ideal for four-season commercial climates and facilities requiring supplementary heating and cooling from one portable platform year-round.
Controls and Safety
Digital control panels, multi-speed fan, directional nozzles, self-diagnostic display, compressor overload protection, anti-freeze thermostats, and washable filters across applicable models — providing the precision control and fail-safe operation required in data centers, commercial kitchens, laboratories, and mission-critical facilities. Water-cooled models feature quick-connect water piping for fast, tool-free hookup.
Warranty
Every unit backed by free phone technical support, a 2-year parts-only warranty, and a 3-year compressor warranty — one of the longest in the industry.
Versatile Applications
Ideal for server and telecommunications rooms, elevator and mechanical rooms, light industrial spaces and factories, commercial offices, industrial kitchens, hospitals, automotive garages, outdoor events, and apartments — any commercial or industrial space where primary cooling systems are unavailable, insufficient, or undergoing maintenance.
Construction
All steel, painted cabinets on industrial models; rust-proof ABS molded panels on commercial models; fiberglass internal insulation throughout; heavy-duty caster wheels on all models. Operating temperature range of 64–113°F on applicable models.