Not that long ago, a heat gun was a nice-to-have tool, something you’d use to melt some shrink sleeves or remove old decals. Many older guns were either “on” or “off’” with no heat control, so you had to be extremely careful when using one. More than one paint job has been damaged by using too much heat to remove a decal or a wire destroyed trying to apply shrink sleeving.

But that was then. Heat gun technology has moved forward, and a good example is the Summit Racing™ 20V Heat Gun. The cordless tool has modern ceramic heating technology that is very efficient and comes to temperature quickly. You can choose one of two fan speed settings. The low speed setting provides 3.5 CFM of airflow. The high speed setting provides 7 CFM of airflow.

The LCD screen at the top of the gun displays the temperature. You can fine-tune the temperature  +/-50 degrees using the buttons just under the screen. The fan speed setting button can be locked when you’re working on a big project like stripping paint.

Other features include an LED light in the face of the tool to illuminate your work area and a handy hook on the back of the gun so you can hang it up when not in use.

The Summit Racing 20V Heat Gun is supplied with three stainless steel nozzles—a flat nozzle, a .035-inch diameter nozzle, and shovel blade for removing paint. The nozzles slide over the nose of the gun and are locked in by a rotating collar. When you’re done with the job, just rotate the cover to eject hot nozzle without touching it.

The Summit Racing 20 Volt Head Gun uses Summit Racing’s own Lithium Rechargeable Batteries. The batteries have built-in protection from short circuits, high current overload, high and low voltages, and overheating. They’re available in two- and four-amp versions and work with all of Summit Racing’s 20 volt cordless tools.

In operation, the heat gun is convenient to use. The handle is very comfortable. Switching between high and low speeds and making temperature changes are simple tasks. When it comes to doing jobs like , the gun is clearly up the task. Since the temperature is easy to control, applying heat shrink tubing is a snap with there’s little or no chance of accidently melting the material. The same applies to using it with solderless heat shrink wiring terminals and self-soldering connectors.

We didn’t have the opportunity to use the Summit Racing 20V Heat Gun for stripping paint. Summit Racing does include a scraper with three interchangeable heads plus a regular putty scraper. With the super-effective heat control, the gun should be a whiz when it comes to paint removal.

Summit Racing 20V heat gun
The Summit Racing™ 20 Volt Heat Gun has modern ceramic heating technology that is very efficient and comes to temperature quickly. The gun is shown with the included stainless steel nozzles. The batteries and charger are available separately. (Image/Wayne Scraba)
Summit Racing 20V heat gun fan speed setting control
This switch on the handle controls high and low speed settings. The low speed setting provides 3.5 CFM of airflow. The high speed setting provides 7 CFM of airflow. (Image/Wayne Scraba)
Summit Racing 20V heat gun screen and temperature controls
This LCD screen on top of the gun displays the temperature along with battery life. The pair of buttons are used to adjust temperature up to plus or minus 50 degrees. (Image/Wayne Scraba)
Summit Racing 20V heat gun with nozzle
The Summit Racing heat gun is supplied with three stainless steel nozzles. The actual shape of each nozzle determines the use. For example, this shovel blade nozzle is perfect for removing paint. The nozzles slide over the nose of the gun and are locked in by a rotating collar. When you’re done with the job, just rotate the collar to eject the nozzle. That saves your fingers from getting scorched by a hot nozzle. (Image/Wayne Scraba)
Summit Racing 20V heat gun scraper tools
Summit Racing supplies this scraper set with its heat gun. You get a putty scraper plus a scraper with interchangeable heads that let you get into tight spots when removing paint. (Image/Wayne Scraba)
Summit Racing 20V battery and charger
The heat gun uses Summit Racing’s 20V Lithium Rechargeable Batteries. Available in 4.0 and 2.0 amp versions, the batteries have high-current protection, high- and low-voltage protection, over-heating protection, and short circuit protection. The batteries fit Summit Racing’s other 20V cordless tools. The charger show in the photo is available separately. (Image/Wayne Scraba)
Applying heat sleeve on ignition wire
I used the heat gun on a couple of sample projects. Here, I applied some heat sleeves to a set of ignition wires. It worked great. (Image/Wayne Scraba)
Applying heat shrink to wire
The heat gun did a good job of applying heat shrink to this wire. Summit Racing offers a nice heat shrink kit with six inch-long shrinks in various diameters. (Image/Wayne Scraba)
Connecting heat shrink solderless wire terminal
The final test was connecting a wire to a solderless heat shrink wire terminal. I inserted a stripped wire end into the connector, crimped it, then applied heat to melt the plastic and create a secure connection. (Image/Wayne Scraba)
Author: Wayne Scraba

Wayne Scraba is a diehard car guy and regular contributor to OnAllCylinders. He’s owned his own speed shop, built race cars, street rods, and custom motorcycles, and restored muscle cars. He’s authored five how-to books and written over 4,500 tech articles that have appeared in sixty different high performance automotive, motorcycle and aviation magazines worldwide.