Cordless welding advances efficiency at IRE show

By Jesse Sanchez. 

Leister showcases compact cordless heat welding technology designed to streamline repairs, demos and jobsite mobility.   

Leister is preparing to spotlight the NEXHEAT cordless welder during the International Roofing Expo (IRE). The compact unit stood out during hands-on evaluations for its familiar form factor and mobility advantages on active jobsites. Cordless operation supports service crews looking to shorten setup time, reduce equipment loads and move more safely across constrained rooftop conditions. 

Early impressions centered on familiarity and scale. Dave Lusk of Steve Garlock Equipment reflected on how quickly crews recognized the tool’s form. “The gun was very compact and that it looked like a cordless drill,” he noted. That resemblance helped shorten the learning curve, allowing users to focus on application rather than orientation during initial handling. 

Once in use, attention shifted to control and visibility. Dave shared, “I liked that the temperature dial and display screen is on top of the gun making it very easy to see what the temp is at all times.” Clear, constant feedback supports precision during repair welding where temperature accuracy matters. 

Performance quickly became the next point of comparison. Dave noted, “Our customers that have had similar products said that the Leister NEXHEAT put out more heat than other competitors,” setting expectations for output from a cordless platform. Practical advantages followed just as quickly. Dave added, “Unlike corded models, you do not have to cool the NEXHEAT down after use.” This upgrade removes a common delay between tasks. 

Consistency under demanding conditions also stood out during demonstrations. Dave explained that heat output remained steady throughout use. “Very consistent and customers are very impressed with how hot the NEXHEAT really gets,” he said. That reliability often surprised first-time users. “It is very deceiving by its size and I warn them don’t get too close and they immediately will pull back with a look of surprise.” 

Usability rounded out the experience. “Very easy. The battery switch out is the same as a Dewalt or Makita cordless drill,” Dave said. Battery changes require no additional tools or adapters. Extended operation was also addressed. “It does have a trigger lock and is very user friendly.” 

“The NEXHEAT is without a doubt a game changer,” Dave said. “This gun allows a repair guy to find a leak and fix quickly without bringing up a generator, cords or a hand welder up on the roof, saving time and labor.” 

Contractors can see the NEXHEAT in action and explore its repair-focused advantages during live demonstrations at IRE this year!