Milwaukee M18 Heat Gun Needs No Cords, No Butane
There are a lot of uses for heat guns and in my line of work, we use them primarily for heat shrink connectors in our communications systems. The idea of a no cord, no butane system is appealing, so we put the Milwaukee M18 Heat Gun to work over the last couple of months.
Pros
- No cord, no butane
- Great for quick jobs like heat shrink connections
- Compact design is great for working in control panels
- Quick heating makes short work of heat shrink connections
- Hang hook saves you from knocking it over
Cons
- Runtime is pretty limitedโjust 18-ish minutes with a 5.0Ah battery
Editorial Note: Check out our best cordless heat gun article to see our top picks.
Performance
Heat
The Milwaukee M18 Heat Gun uses a ceramic coil (โhigh-performance heating coilโ) along with any M18 battery to produce heat. It gets up to 875ยบ F, which is less than many AC heat guns. Milwaukeeโs own corded model reaches 1000ยบ F and there are others that can push 1300ยบ F or more.
To get the most out of this one, you need to understand that limitation. For the heat shrink connectors I use on a daily basis, itโs plenty of heat. With the heat peaking where it does and relatively low fan speed, itโs not something you want to try and soften paint for stripping or thaw out frozen pipes with.
The upside is that it heats up fast. Milwaukee claims itโs operational in 7 seconds and thatโs pretty accurate. It takes a little longer to reach its peak temperature, though.
Itโs also really compact at 6.4โณ. Since we work inside control panels frequently, itโs a lot more convenient in those tight spaces than our corded models.
Runtime
Creating heat is no easy task. I remember watching an Olympic track cyclist with oak tree size quads get his bike hooked up to power a toaster. He ended up with one medium toasted piece of bread before he could no longer sustain enough power for it.
Itโs no surprise that runtime is the major limiting factor for the Milwaukee M18 Heat Gun. On a 5.0Ah battery, youโre looking at roughly 18 minutes of continuous heat and weโre seeing times that creep a little closer to 19 minutes. Weโre never actually using it once continuous burst, though. Even if weโre doing a ton of connections, weโll bring a second battery along or just give the one weโre using a charge during lunch.
Obviously, youโll get more runtime out of high watt-hour batteries, but I wouldnโt try to sneak down to any of the compact ones. Stick with the 5.0Ah or higher. If youโre working at a workbench, you can slap an 8.0Ah, 9.0Ah, or 12.0Ah battery on there and get more done on one charge. But then again, do you really need to go cordless if youโre staying put?
Feature Set
Single Setting
At first glance, I missed having two temperature settings. But the more we used the heat gun on our connections, the more we realized we only need the one.
Hang Hook
I LOVE the hang hook on this model! With the tight spaces we often work in, itโs easy to knock a heat gun over and accidentally melt wire insulation.
Nozzles
With the spaces weโre working in, we typically use the heat gun in its stock configuration. My racing drones are a different story and Milwaukee includes reducer and guarded nozzles in the kit. If you need more nozzles, Milwaukee 49-80-0300 accessory kit is compatible.
LED Light
The heat gun has an LED light to help light up dark corners.
Price
You can pick up the Milwaukee M18 Heat Gun as a bare tool for $129 or as a kit with a 5.0Ah battery, nozzles, and charger for $299.
Thereโs not a lot of competition for Milwaukee right now. The Ridgid cordless heat gun runs a lot longer but requires butane. Ryobi has one that specs out very similar to Milwaukee for $99 as a bare tool. We also know DeWalt has a similar model showing up in July 2019 that should run around $119 bare.
The Bottom Line
The Milwaukee M18 Heat Gun is a niche tool that thrives at making heat shrink connections. Even though there might not be a ton of applications outside of that because of the runtime, itโs so effective that I can use it on all of my fieldwork and leave the corded heat guns at home.
Milwaukee M18 Heat Gun Specifications
- Model: Milwaukee 2688-21
- Voltage 18V
- Length: 6.39โณ
- Width: 2.6โณ
- Height: 7.87โณ
- Weight: 1.7 lbs
- Warranty: 5 Years (Tool), 3 Years (Battery)
- Price: $129 bare, $299 kit
