Buying guide for Best heat guns
A heat gun is a relatively uncomplicated yet very effective tool with a surprisingly wide variety of uses from stripping paint to thawing pipes to repairing a vehicle’s bodywork. However, the sheer number of different heat guns available can make it difficult to choose the right one for your needs.
You need to consider the heat output, air speed, nozzles, controls, and several other features in order to choose the model that will work best for your projects.
Key considerations
What can a heat gun do?
A heat gun is not unlike a hair dryer, yet it’s much more powerful. Most heat guns are a similar shape. Inside, there’s an electric motor that blows air across a heating element. These two components define the kind of performance you can expect from a heat gun.
You probably have a specific task in mind if you’re thinking about getting a heat gun. Your choice could well be based on your previous experience using one. However, it’s worth thinking about all the potential uses of this tool so you can maximize the usefulness of your choice.
Small, handheld models that are a simple tube shape, often called embossing heat guns, have low output but are invaluable for a number of craft projects. They can also be used for various paint and mixed-media effects.
Larger models with variable heat delivery can also be used by artists and craftspeople, but these offer greater versatility. Common uses include the following:
- Stripping paint
- Shrink-wrapping packages
- Shrinking tubular sleeves for electrical wiring
- Bending or welding plastics
- Reworking and repairing electrical or electronic items
- Adding or removing vehicle wraps
- Removing dents from vehicle bodywork
- Removing decals or labels
- Thawing pipes
- Undoing rusty nuts and bolts
Many of these things are well within the scope of the average DIY enthusiast, while others require specialist knowledge. Each makes different demands on a heat gun, which explains why there’s so much choice.
Heat gun features
Consider the following features when choosing a heat gun.
Heat output
This is of major importance. Small devices often only need to work within a narrow temperature band and may do no more than reach a fixed temperature of a few hundred degrees Fahrenheit. General-purpose heat guns offer a wide range — from as little as 150°F to over 1,000°F. Others can be more function-specific and, while powerful, deliver a smaller operating range. It’s not always about having the greatest flexibility. Sometimes it’s more significant to have the correct heat for the task you’re undertaking.
Heat control
This can be an equally important feature, particularly if you need a specific temperature. Some basic heat guns offer high and low options, and quite a few tools have a number of presets via an easy-to-use dial. High-end models provide push-button settings and digital readouts.
Air speed
This can be an important factor, too. Too little won’t get heat to the appropriate areas, and too much might damage whatever you’re working on. Many heat guns provide two settings.
Nozzles
These are often provided with the heat gun. They range from fan-shaped designs for stripping paint to curved shields for shrinking tubing. You might also get scrapers or other accessories. When you’re choosing between two very similar heat guns, each nozzle potentially adds to the product's worth.
Power cable
This can be as long as ten feet, but most are shorter. If you need to use an extension cord, make sure it’s of sufficient gauge to handle the demands of the tool. Cordless heat guns overcome this problem, but at the time of writing there were only a few available, and they are very expensive.
Overload protection
This valuable feature on some models ensures your gun won’t overheat, which can damage internal components and wear the element unnecessarily. A safety cut-out can extend the life of your tool.
Stand
This very useful item prevents your heat gun from coming into contact with — and damaging — your work surface. Some are designed to point the nozzle vertically so you can use both hands on your work (when sleeving cables, for example).
Handle
Most handles are made of hard plastic. If you’re likely to be using your heat gun for long periods, a rubberized grip is more comfortable.
Case
A carrying case is always a nice addition. It’s even more useful if it can accommodate extra nozzles.
Heat gun prices
Inexpensive
You can find small, entry-level heat guns for as little as $10 or $15. As a tool for embossing or certain paint effects, this might be all you need. The cheapest general-purpose heat guns — the pistol-grip type used for stripping paint — cost around $20.
Mid-range
If you’re looking for a quality all-rounder, you’ll pay between $30 and $50, depending on the accessories included. Most DIY enthusiasts and many professionals will find what they’re looking for in this price bracket.
Expensive
Heat guns from big-name brands and those aimed at heavy-duty users cost from $70 to $120. It’s a lot of money compared to many good mid-range models, but for some people it will be worth the investment. Cordless heat guns offer greater freedom of movement, but the few available currently all cost over $120.
Tips
- Think about safety first. A heat gun may not have a naked flame, but it’s still capable of starting a fire. Think carefully about your work area and remove any flammable materials. Be careful to keep your hands out of the hot air stream. And allow the gun to cool completely before putting it away.
- Use a heat gun to reflow solder. This is for when you’re trying to take components apart, not for initial soldering. That should always be done with a soldering iron. A lot of solder is now lead-free, but not all. Lead is toxic, so unless you’re absolutely sure of the origin, always have good ventilation and wear a respirator.
- Use the right nozzle. It’s important to use the right heat gun nozzle for optimum performance. Fortunately, there are dozens of task-specific accessories available separately if your gun isn’t supplied with the one you need.
- Use a heat gun for shrink-wrapping. A heat gun is great for shrink-wrapping modestly sized items, which is particularly good for crafters. However, it can be a challenge to evenly heat large items. In that case, a dedicated shrink-wrapping gun may be a better option.
FAQ
Q. How do I take care of my heat gun?
A. These tools require very little maintenance. Mostly, it’s a question of keeping the nozzle and heat element free of dirt and dust, which is really just a matter of general cleanliness in your work area. Most manufacturers provide an instruction manual, which you should follow carefully to maximize the life of your tool.
Q. Can I use a heat gun to light the charcoal in my barbecue?
A. You can, and some people argue that it’s cheaper to run and faster than the electric kind you leave on the coals. With a powerful heat gun, you should be able to get your charcoal grill fired up in just a couple of minutes. It’s best to heat a small area, moving the gun around a little rather than focusing on one spot. Back off a bit if you start blowing hot sparks around. Remember the usual heat gun safety precautions, and don’t leave the heat gun to cool where children or animals might reach it.
Q. Is it safe to use a heat gun for stripping lead-based paint?
A. No. You’ll release toxins into the air. Nor should you use dry sanding methods because you’ll create poisonous dust. Experts recommend gel-based or other liquid paint strippers. Be sure to consult local authorities about the safe disposal of the waste.
