The heat gun is one of those tools that lives in every workshop drawer but earns its place a few times a year — and when it earns it, nothing else will do. Heat shrink tubing on an electrical joint. Stripping varnish off a restoration project. Softening adhesive on a stuck panel. Shrinking heat-shrink labels on a wiring harness. Reflowing solder on a board. Conforming vinyl wrap to a curved fender. Breaking the cured Loctite holding a stuck bolt. Bending PVC pipe to a custom run. Heat guns deliver controlled flameless heat up to 650°C — ten times hotter than a hair dryer, and the workshop wins are everywhere once you understand the temperature ranges.
This guide decodes industrial heat guns for Australian workshops, mechanics, electricians, fabricators, restoration trades and electronics technicians. The temperature ranges by application — what works at 90°C, 200°C, 400°C and 650°C. The corded vs cordless reality — what each does well, and where the marketing oversells cordless. The brand landscape — why Metabo and Hikoki dominate the AIMS pro range, where Steinel sits, and why Bunnings Ozito/Ryobi is a different product class. Plus the forum-validated mistakes nobody at the tool counter warns you about — air intake blockages causing fires, lead paint vaporisation at 600°C+, and continuous-use damage to both work and tool.
This guide is for workshop, industrial, electrical, automotive and trade applications. The Bunnings DIY tier (Ozito corded, Ryobi 18V) is a different product class — fine for occasional home use but not built for sustained workshop duty cycles, and Ozito's warranty is explicitly DIY-only (trade use voids it per the manufacturer). AIMS Industrial stocks the professional tier — 5 heat gun SKUs across Metabo (German premium) and Hikoki (Japanese premium) in the power tools collection.
What is a heat gun, and what makes it different from a hair dryer?
A heat gun is an electrically-powered tool that draws ambient air over a heating element and blows it out a nozzle at controlled high temperature — typically 80°C to 650°C on a professional unit. Inside, a motor-driven fan pushes air across a coiled wire or ceramic element heated by an electrical current. The element heats the air; the fan accelerates it through the nozzle to the work.
The hair dryer comparison comes up constantly because the two tools look superficially similar. The reality is order-of-magnitude different:
| Spec | Hair dryer | Heat gun (workshop) |
|---|---|---|
| Max air temperature | ~80°C | 650°C (Metabo HGE 23-650) |
| Air flow | ~30 L/sec | 150–500 L/min variable |
| Power draw | 1,500–2,000W | 1,600–2,300W |
| Designed for | Drying hair, low-temperature applications | Heat shrink, paint stripping, plastic welding, adhesive removal, solder reflow |
| Will it heat shrink tubing? | No — won't reach 90°C+ shrink temperature reliably | Yes — designed for it |
| Will it strip paint? | No — far too low temperature | Yes — at 300–540°C settings |
A hair dryer maxes out where a heat gun's lowest workshop setting begins. The "use a hair dryer instead" workshop hack works only for the very lowest-temperature applications (gentle warming of stickers to lift them, softening of plumber's putty) — and even then, a heat gun on its lowest setting does the same job faster with better control.
Temperature ranges by application — the workshop reference
This is the single most-important table for choosing a heat gun and using it correctly. Forum consensus across Garage Journal, Power Tools Today, BobIsTheOilGuy and Practical Machinist on real workshop temperatures by application:
| Application | Temperature | Notes |
|---|---|---|
| Vinyl wrap shaping (auto, signage) | 80–150°C | Light heat to soften adhesive — conform to curves without damage |
| Heat shrink tubing — polyolefin (standard electrical) | 125–150°C | The workshop default. AS/NZS 3000-compliant for cable insulation. (See our Heat Shrink Tubing Guide.) |
| Heat shrink tubing — PVC | 105°C | Lower-temperature variant |
| Plastic welding (HDPE, PP) | 200–340°C | Matched to plastic type — see manufacturer specs |
| Solder reflow (electronics) | 300–450°C | Lead-free 215°C+, leaded 183°C+; reflow above melt for flow |
| Heat shrink — PTFE high-temp | 250°C+ | Specialty insulation product |
| Paint stripping — water-based paint | 150–260°C / 300–500°F | Softens water-based paints; mid-range setting |
| Paint stripping — oil/solvent-based paint | 320–540°C / 600–1000°F | Higher heat needed for solvent-based chemistry |
| Loctite / threadlocker degradation | 80–230°C | Loctite 401 softens above 80°C; 243 above 200°C; 263 above 230°C |
| Frozen / seized bolt | 200–400°C | Differential expansion breaks corrosion seal |
| PVC pipe bending | 120–160°C | Even heat application; rotate the pipe to avoid kinking |
| Maximum on professional unit | 650°C | Metabo HGE 23-650 LCD ceiling — extreme applications only |
Critical workshop rule: "Too hot, and you damage what you're working on. Too cold, and you waste your time." Match temperature to material. A variable-temperature heat gun with LCD display (like the Metabo HGE 23-650 LCD or Hikoki RH650V) lets you dial in the exact temperature; a two-stage (low/high) unit forces you to pick between two preset temperatures and hope one works.
Corded vs cordless — the workshop reality check
The cordless heat gun is a recent addition to the workshop — Metabo's HG 18 LTX 500 and Hikoki's RH18DA are the AIMS-stocked options. Pro Tool Reviews, Garage Journal, BobIsTheOilGuy and Concord Carpenter forum consensus on cordless vs corded:
| Corded (mains-powered) | Cordless (18V Li-Ion) | |
|---|---|---|
| Max temperature | 650°C (Metabo HGE 23-650 LCD) | 540°C (typical 18V ceiling, ~1000°F) |
| Power | 1,600–2,300W sustained | ~300–500W battery-limited |
| Runtime | Unlimited (mains) | 15–25 minutes per battery |
| Air flow | 150–500 L/min variable | ~250 L/min typical |
| Heavy heat shrink (large cables) | Excellent — full output sustained | Marginal — battery drains fast |
| Paint stripping (long jobs) | Excellent — go all day | Multiple battery swaps needed |
| On-site / mobile work | Needs power, extension cord | Wins — true cordless freedom |
| A few heat shrink terminations on a job site | Overkill | Perfect |
| Continuous workshop production | Required | Wrong tool |
Forum quotes that frame the decision:
- "Cordless heat guns chew through batteries quickly" — BobIsTheOilGuy consensus on Milwaukee M18 and similar 18V units.
- "Cordless doesn't replace a high-heat 120V gun for bigger jobs, but certainly has uses where running an extension cord is impractical" — Garage Journal forum reality check.
- "For just a few heat-shrink tubes on smaller wires, or even 40 repairs on smaller wires if you have a few batteries, cordless is great" — practical use case.
Workshop recommendation: Buy a corded heat gun as your primary tool (Metabo HGE 23-650 LCD or HG-16-500, or Hikoki RH650V). Add cordless (Metabo HG 18 LTX 500 or Hikoki RH18DA) only if you do significant on-site work without power access. Cordless is a supplement, not a replacement.
Two-stage, variable temperature, and LCD display — the professional difference
Heat guns come in three control tiers:
- Two-stage (low/high) — a single switch picks between two preset temperatures (e.g. 300°C / 500°C on the Metabo HG-16-500). Workshop entry level. Adequate for general use but forces you to pick between two settings — if your application needs 200°C, you're either undercooking or overheating. The Metabo HG-16-500 1600W is AIMS's two-stage workhorse.
- Variable temperature (knob) — analogue dial sets temperature anywhere across the range. Better control but no display, so you're working by feel.
- Variable with LCD display — the professional standard. The temperature is set in 10°C increments, displayed on an LCD, and held by the unit's electronic control. The Metabo HGE 23-650 LCD 2300W (range 80–650°C in 10°C steps) and Hikoki RH650V 2000W LCD Display are the AIMS-stocked LCD-tier options. Programmable presets store recurring applications (e.g. one button for 150°C heat shrink, another for 400°C paint stripping).
The professional case for LCD: when you're doing heat shrink on AS/NZS 3000-compliant cable joints, the temperature spec is 125-135°C for polyolefin. A two-stage unit doesn't go that low. A variable analogue dial guesses. The LCD lets you set 130°C and know that's exactly what the air is at the nozzle.
Ceramic vs wire-coil heating elements — the durability story
Heat guns use one of two heating element designs:
- Wire-coil element — a coiled nichrome wire heats up when current passes through. Cheap, simple, well-understood. Found in budget consumer-tier heat guns (Ozito, Ryobi consumer line, generic Amazon brands).
- Ceramic-encapsulated element — the heating coil is wound through ceramic discs, fully encapsulated. The ceramic supports the coils mechanically (preventing breakage from vibration and shock) and distributes heat evenly. Longer service life, more accurate temperature control, found in pro tier — the Metabo HGE 23-650 LCD uses ceramic heating.
Forum consensus across All About Circuits and electronics-focused forums: ceramic elements last 3-5× longer than wire-coil under equivalent duty cycles. For workshop-grade use where the heat gun runs continuously on heat shrink production or restoration work, the ceramic-element premium pays for itself.
Heat shrink tubing — the #1 workshop application
Heat shrink tubing for cable insulation is the heat gun's biggest single use case. Australian electrical work under AS/NZS 3000:2018 (Wiring Rules) accepts heat shrink as a compliant insulation method on joints, repairs and termination points — provided the tubing is rated for the application and shrunk to specification.
Workshop-standard heat shrink materials and their shrink temperatures:
| Heat shrink material | Shrink temperature | Workshop role |
|---|---|---|
| Polyolefin (standard) | 125–135°C | The default — workshop electrical, automotive harness, general purpose |
| Polyolefin (low-temp variant) | 90°C | Heat-sensitive cable insulation, electronics |
| PVC | 105°C | Lower-temperature shrink; less common |
| Adhesive-lined polyolefin | 140–160°C | Waterproof seal — outdoor cable joints, marine, automotive engine bay |
| PTFE (high-temp) | 250–340°C | Specialty — engine bay temperature exposure, industrial |
| Kynar / PVDF (chemical resistance) | 175°C | Specialty — chemical or fuel exposure |
Workshop heat shrink technique:
- Slide the tubing over the cable BEFORE making the joint (the #1 forgotten step — you can't fit it on after you've joined the wires).
- Make the electrical joint, position the tubing over it.
- Set heat gun to 150°C (covers polyolefin standard and most PVC).
- Apply heat evenly, rotating around the tubing — don't fix the heat in one spot.
- Stop when the tubing has shrunk fully and conformed to the cable shape. Overheating after full shrink melts the tubing.
For comprehensive heat shrink type selection, ratings, sizing and AS/NZS 3000 compliance details, see our Heat Shrink Tubing Guide.
Paint stripping — restoration workflow with lead-safe technique
Heat gun paint stripping is the restoration trade's bread and butter — varnish off woodwork, layered paint off heritage doors, automotive paint off sheet metal, antifouling off marine hulls. The workflow:
- Test the paint type — water-based modern paints strip at lower temperature (150–260°C); oil/solvent-based older paints need higher heat (320–540°C).
- Hold the gun at 45° angle, 25–100mm from the surface — too close burns; too far does nothing.
- Move in slow, even sweeps — don't fix the heat in one spot or you'll scorch the substrate.
- Scrape with a putty knife or scraper as soon as the paint bubbles or softens — chase the heat gun across the surface, scraping behind it.
- Dispose of paint scrapings as hazardous waste for any pre-1980 paint (likely lead-containing).
⚠️ Lead paint safety — the critical warning. Australian houses built before 1980 (and a good portion built up to 1995) likely contain lead-based paint. Heat guns operated above approximately 600°C (1,100°F) vaporise lead from the paint, releasing toxic lead-laden fumes. US EPA and AU Department of Health guidance:
- Keep the heat gun below 600°C / 1,100°F when stripping pre-1980 paint
- Wear a P2 respirator minimum (P3 preferred) with HEPA cartridges
- Wet-down the work area to prevent dust spread
- Use disposable plastic drop sheets, dispose as hazardous waste
- Wash skin, clothes and equipment immediately afterward
- For large lead paint jobs, consider chemical strippers or infrared paint removers (400–600°F infrared, well below lead vaporisation) as safer alternatives
This is a real workplace and household health hazard, not theoretical. Lead exposure causes neurological damage with no safe lower limit. Where pre-1980 surfaces are involved, the heat gun is the wrong tool — chemical strippers or trained lead-abatement contractors are safer.
Adhesive removal, Loctite degradation, and stuck bolts
Heat is the workshop's universal adhesive solvent. Most adhesives and thread sealants soften or degrade at temperatures well below what damages the underlying material:
- Loctite 401 (cyanoacrylate / superglue) — softens above 80°C. Apply 100–120°C to break the bond. See our Loctite 401 Guide for the thermal removal workflow.
- Loctite 243 (medium-strength threadlocker) — softens above 200°C. The standard "heat the bolt to break it" workshop technique.
- Loctite 263 (high-strength threadlocker) — softens above 230°C. Higher heat needed than 243.
- Loctite 277 (oil-tolerant high-strength) — softens above 250°C.
- Silicone adhesive / RTV — degrades above 200°C, but most silicones are designed for high-temp use; mechanical removal often faster.
- Vinyl decal / sticker adhesive — softens at 60–100°C; very low temperature does the job.
- Hot-melt adhesive (glue gun residue) — re-liquefies at 120–180°C.
- Epoxy — most epoxies char rather than soften. Mechanical removal preferred.
For seized bolts, the heat gun is the safer alternative to oxy-acetylene flame for most workshop jobs. Heat the area around the bolt (not the bolt itself directly — the differential thermal expansion of the surrounding metal vs the bolt is what breaks the corrosion seal). 200–400°C for 30–60 seconds is typically enough; loosen the bolt while still warm.
Electronics work — solder reflow, shrink film, component removal
The electronics workshop heat gun is a specialty tool — soldering rework stations use precision-controlled hot air rather than handheld heat guns for SMD work. But for hobby/repair electronics, a workshop heat gun is the bridge tool:
- Solder reflow for through-hole components — 350–400°C at low air flow, narrow nozzle, ~10–20 seconds per joint
- Lead-free solder reflow — 350–400°C (lead-free melts at 217°C; reflow needs 30-40°C above melt)
- Leaded solder reflow — 290–340°C (leaded melts at 183°C)
- SMD component removal — narrow nozzle, 300–350°C, even heat application until solder flows, lift component with tweezers
- Heat shrink for electronics — low-temp polyolefin shrink (90°C variant) at lowest heat gun setting
Workshop electronics caveat: a standard heat gun heats a wide area. Heat-sensitive components (electrolytic capacitors, plastic connectors, board laminate) can be damaged by the surrounding heat even when the target solder joint is fine. For precision work, a dedicated SMD rework station with narrow controlled airflow is the right tool.
Vinyl wrap and signage — the auto-trade and signage application
Vinyl wrap conforms to curved surfaces only when heated — the adhesive softens, the film stretches, and the application takes the curve permanently when it cools. Workshop temperatures:
- Initial application — 80–100°C, low heat. Just enough to activate adhesive without distorting the print.
- Conforming to curves (fender, bumper) — 100–150°C. Heat the area, stretch the vinyl over the curve, hold until cool.
- Post-heating (locking the cured shape) — 100–120°C across the entire wrapped surface to set the adhesive and prevent peel-back over time.
Vinyl wrap installers specifically prefer LCD-display heat guns where the temperature can be set precisely — too hot stretches the vinyl unevenly or burns through the laminate; too low and the wrap won't take the curve. The Metabo HGE 23-650 LCD is widely used in AU auto wrap and signage shops for this reason.
Plumbing and PVC pipe bending
HDPE, PVC and PEX pipe can be heat-bent in the workshop with a heat gun. Workshop technique:
- Heat at 120–160°C across the bend zone
- Rotate the pipe continuously to avoid kinking on one side
- Apply even heat for 30–60 seconds for small-diameter pipe
- Bend gradually — the pipe should resist slightly when at correct temperature
- Hold in position until cool (10–30 seconds depending on diameter)
For copper pipe, a heat gun does NOT replace a propane torch for soldering joints — copper soldering needs 280°C+ at the joint itself, which a heat gun struggles to deliver through the copper's high thermal conductivity. Heat gun is fine for warming a frozen pipe or softening solder for joint removal.
Brand reality — the Australian heat gun landscape
| Brand | Origin | Position | AIMS stock |
|---|---|---|---|
| Metabo | Germany | Workshop premium at AIMS. Ceramic heating element, LCD display on HGE 23-650, programmable presets, stationary base mode, 4m cable. Industrial-grade build for sustained workshop duty cycles. | 3 SKUs (corded + cordless) |
| Hikoki | Japan | Workshop premium at AIMS. Strong AU 18V cordless ecosystem (RH18DA shares battery with other Hikoki cordless tools). RH650V 2000W LCD as the corded LCD option. | 2 SKUs (corded + cordless) |
| Steinel | Germany | Heat gun specialist — Steinel built its reputation on heat guns alone. Strong pro-tier reputation on Garage Journal and BobIsTheOilGuy. Not stocked at AIMS — contact us for sourcing if you specifically want Steinel. | Not stocked |
| Bosch (blue trade range) | Germany | Workshop tier — solid build. Not stocked at AIMS. | Not stocked |
| Milwaukee M18 | USA | Cordless ecosystem tied to existing M18 battery platform. Not stocked at AIMS. | Not stocked |
| Makita, DeWalt | Various | Cordless ecosystems for existing tool platform users. | Not stocked |
| Master Appliance, Leister | USA, Switzerland | Industrial heat gun specialty — production heat shrink, plastic welding. McMaster-Carr accessory ecosystem. | Not stocked |
| Ozito, Ryobi (consumer), generic Amazon | Various | DIY tier — different product class. 10-minute duty cycle on Ozito (Bunnings review-validated). Warranty explicitly DIY-only — trade use voids it. Workshop-default Bunnings tier in 1600-2000W corded and 18V cordless formats. Fine for occasional home use; not built for sustained workshop work. | Different product class — Bunnings, not AIMS |
Garage Journal direct forum quote: "Steinel makes heat guns and Metabo makes really nice grinders. So if you need a heat gun buy the Steinel." Counter-perspective from another Garage Journal user who owns the Metabo HGE 23-650 LCD: "Works great, temperature setting and all." Both brands deliver the professional-tier ceramic-element variable-LCD workshop tool — Steinel has the heat-gun-specialist reputation; Metabo's HGE 23-650 LCD genuinely matches it. AIMS doesn't stock Steinel; for AIMS customers, the Metabo HGE 23-650 LCD is the equivalent professional pick.
AIMS heat gun range — 5 professional-tier SKUs
AIMS Industrial stocks the professional tier — sustained workshop duty cycles, ceramic-element premium, AU compliance:
- Metabo HGE 23-650 LCD 2300W Variable 80-650°C — the AIMS professional flagship. LCD display, variable temperature in 10°C increments, ceramic heating element, programmable presets, stationary base mode for hands-free use, 4m cable. The full pro-tier package.
- Metabo HG-16-500 1600W 2-Stage 300/500°C — workshop standard two-stage. Adequate for most general workshop use where exact temperature setting isn't critical.
- Metabo HG 18 LTX 500 18V Cordless (Tool Only) — cordless on Metabo 18V platform. For on-site work where mains power is impractical.
- Hikoki RH650V 2000W with LCD Display — Hikoki's corded LCD-display professional tool.
- Hikoki RH18DA 18V Heat Gun (Skin Only) — cordless on Hikoki 18V battery platform. Suits users already in the Hikoki cordless ecosystem.
Browse the parent collections: Metabo power tools · all power tools. For brands AIMS doesn't stock (Steinel, Bosch trade, Milwaukee M18, Makita, DeWalt, Master Appliance, Leister industrial), contact us via the Quote Request form for sourcing through our supplier network.
Common heat gun mistakes
| Mistake | Consequence | Fix |
|---|---|---|
| Using a hair dryer for heat shrink | Won't shrink — hair dryers max ~80°C; polyolefin needs 125°C+ | Use a real heat gun; 150°C setting works for standard polyolefin |
| Holding the gun too close to the work | Localised burning, melting, scorched substrate, damaged components | Hold 25–100mm depending on power and application |
| Fixing heat in one spot | Burns the work or melts the tubing past its shrink point | Continuous sweeping motion — keep the gun moving |
| Wrong temperature for material | Either nothing happens (too cold) or damage (too hot) | Set temperature to match the application — use the table above |
| Blocked air intake | Heat gun overheats, can ignite the housing, premature element failure | Keep intake vents clean; never set the gun down on cloth/insulation that blocks intake |
| Continuous use at maximum temperature | Damages the tool element AND the workpiece; cuts service life dramatically | Use the lowest temperature that gets the job done |
| Storing while still hot | Melted plastic from the case, fire risk from contact with combustibles | Let the nozzle cool for 20+ minutes before storage; metal nozzle stays dangerously hot |
| Using cordless for continuous production work | Battery drains in 15-25 minutes; constant swapping kills productivity | Use corded for sustained work; cordless for short on-site jobs only |
| Lead paint at high temperature | Vaporised lead released into air — neurological exposure | Keep below 600°C on pre-1980 paint; respirator required; consider chemical strippers instead |
| Heat gun near flammable solvents or fuels | Flameless ignition source — explosive atmosphere risk | Never use near petrol, brake cleaner, paint thinner, or other flammable vapours |
| Trusting "flameless" = "safe" | Power switch and fan motor are not spark-free; nozzle reaches 540°C+; fire ignition is real | Keep a fire extinguisher nearby; clear flammables from work area |
| Using a cheap Bunnings DIY heat gun for trade work | 10-minute duty cycle, warranty voided by trade use, frequent replacements | Buy the professional tier for sustained workshop use |
Heat gun safety — fire, burns, ventilation
The flameless heat gun looks deceptively safe because there's no visible flame. The reality from US OSHA, Power Tool Institute and forum-validated workplace incident reports:
- Nozzle temperature — 540°C+ on a professional unit. Touching the nozzle causes serious burns; "no flame" doesn't mean "no heat".
- Cool-down time — the metal nozzle requires approximately 20 minutes to cool to safe-touch temperature after use. Don't store in a case immediately after use.
- Ignition hazard — power switches and fan motors inside the heat gun are NOT spark-free. Don't use in atmospheres with flammable vapours (petrol, brake cleaner, paint thinner, solvent fumes).
- Heat retention after switch-off — heat guns continue to produce heat for tens of seconds after the switch is turned off. Stand the gun upright on its stationary base; don't put it in a case immediately.
- Ventilation — paint stripping and plastic-working release fumes. Use in well-ventilated areas; consider local exhaust ventilation (LEV) for production use.
- Fire extinguisher — keep one within reach when working with heat guns. Workplace incident reports document multiple fires from forgotten or dropped heat guns.
- PPE — heat-resistant gloves (not the same as welding gloves — heat-resistant work gloves rated for the temperature), safety glasses for paint stripping (debris flying), P2 respirator minimum for paint stripping (P3 for pre-1980 lead paint), long sleeves to protect from radiant heat.
- Children and pets — workshop heat guns are not toys. Store unplugged and inaccessible.
Forum-validated horror story (Garage Journal): a worker stored a heat gun in its case while still hot — the case melted, the heat gun's internal plastic ignited, the workshop caught fire. 20-minute cool-down is not optional.
Australian standards and compliance
- AS/NZS 60745 (Safety of hand-held motor-operated electric tools) — applies to all mains-powered handheld heat guns. Look for the AS/NZS certification mark on the unit.
- AS/NZS 3760 (In-service safety inspection and testing of electrical equipment) — commercial workshops must test-and-tag mains-powered heat guns at intervals per the standard (typically 12 months for office/light commercial, 3-6 months for industrial/hostile environments).
- AS/NZS 3000 (Wiring Rules) — sets the heat shrink compliance for electrical insulation on joints and terminations. Polyolefin heat shrink shrunk to specification is accepted.
- SafeWork Australia — heat work falls under "hot work" requirements for commercial workplaces. Hot work permits and fire watch protocols may apply, particularly in flammable-environment workplaces (refineries, fuel depots, paint shops).
Selection checklist — choosing the right heat gun for your workshop
- Primary application — heat shrink only (1600W two-stage is enough); paint stripping + heat shrink + general (2000-2300W variable); vinyl wrap or temperature-critical work (LCD-display variable).
- Power source — corded for daily workshop use; cordless only as supplement for on-site work without mains access.
- Temperature control — two-stage for budget general use; variable knob for everyday control; LCD with programmable presets for professional production work or temperature-critical applications.
- Wattage — 1600W enough for heat shrink and light paint stripping; 2000-2300W needed for sustained paint stripping, plastic welding, vinyl wrap, professional production.
- Heating element — ceramic for sustained workshop duty cycles; wire-coil acceptable for occasional use.
- Stationary base mode — needed if you'll do hands-free heat application (vinyl wrap detailing, electronics SMD work, batch heat shrink). Metabo HGE 23-650 LCD has the flat non-slip base.
- Brand ecosystem (cordless only) — Metabo 18V LTX platform or Hikoki 18V platform — pick based on which other cordless tools you have.
- Cable length (corded) — 4m on Metabo HGE 23-650 LCD; check on lower-tier units. Workshop reality is that outlets are rarely close to the work.
- Lead paint exposure — if you're stripping pre-1980 paint, no heat gun is the right tool. Use chemical strippers or infrared paint removers.
- Bunnings DIY tier check — if you'll use a heat gun more than 4-5 times a year for sustained work (10+ minutes per use), buy the professional tier. Ozito and Ryobi consumer line are not built for it.
Frequently Asked Questions
What's the difference between a heat gun and a hair dryer?
A hair dryer maxes out at around 80°C; a workshop heat gun reaches 650°C — over 8× hotter. Hair dryers are designed for drying hair at low temperature; heat guns deliver controlled flameless high-temperature air for heat shrink (125-150°C), paint stripping (150-540°C), plastic welding (200-340°C) and other workshop applications. A hair dryer cannot shrink polyolefin heat shrink tubing (which needs 125°C+) or strip paint.
What temperature do I need for heat shrink tubing?
Standard polyolefin heat shrink shrinks at 125-135°C. PVC heat shrink shrinks at around 105°C. Adhesive-lined polyolefin (for waterproof seals) shrinks at 140-160°C. PTFE high-temperature heat shrink shrinks at 250°C+. Set your heat gun to 150°C as a workshop default for standard heat shrink work — that covers polyolefin, PVC, and most adhesive-lined products. See the Heat Shrink Tubing Guide for material-specific specifications.
What temperature do I need for paint stripping?
Water-based modern paints strip at 150-260°C (300-500°F). Oil/solvent-based older paints need higher heat at 320-540°C (600-1000°F). Set the heat gun to the lowest temperature that softens the paint enough to scrape — too high and you scorch the substrate underneath. Important safety note: pre-1980 paint likely contains lead and vaporises lead above 600°C. Keep below 600°C on old paint, wear a P3 respirator, and consider chemical strippers or infrared paint removers as safer alternatives.
What's the difference between two-stage and variable temperature heat guns?
Two-stage heat guns have a single switch with two preset temperatures — typically 300°C and 500°C (Metabo HG-16-500). Workshop entry level. Variable temperature heat guns let you dial in any temperature across the range; the LCD-display variant (Metabo HGE 23-650 LCD, Hikoki RH650V) displays the set temperature precisely in 10°C increments and holds it electronically. Variable LCD is the professional standard — needed for temperature-critical work like vinyl wrap and electronics, and dramatically more useful for any application where 350°C is the right answer (not 300 or 500).
Cordless vs corded heat gun — which should I buy?
Cordless is supplementary, not a replacement. Corded heat guns deliver 1,600-2,300W sustained, up to 650°C, with unlimited runtime — the workshop daily-driver. Cordless 18V heat guns deliver around 540°C max with 15-25 minutes of runtime per battery before swap-out. Forum consensus across BobIsTheOilGuy and Garage Journal: cordless works for "a few heat shrink terminations on site" but "doesn't replace a corded gun for bigger jobs". Buy corded as your primary tool; add cordless only if you do significant on-site work without mains power.
Can I use a heat gun on lead paint?
Carefully — and only at low temperature. Lead vaporises above approximately 600°C (1,100°F), releasing toxic lead fumes that cause neurological damage with no safe exposure threshold. EPA and AU Department of Health guidance: keep below 600°C on pre-1980 paint, wear a P3 respirator with HEPA cartridges, wet down the work area, use disposable plastic drop sheets, dispose of scrapings as hazardous waste. For large lead paint jobs, chemical strippers or infrared paint removers (which operate at 400-600°F, well below lead vaporisation) are safer alternatives. Trained lead-abatement contractors are the gold standard for significant lead exposure.
Why does my heat gun keep cutting out?
Thermal cutout — almost always caused by blocked air intake. The motor pulls cooling air through the intake grilles; if they're clogged with dust, paint scrapings, or insulation, the gun overheats and trips its internal thermal switch. Fix: switch off, let cool for 20+ minutes, clean intake grilles (compressed air or soft brush), check that nothing is blocking the air path. Other causes: continuous use at maximum temperature exceeds the duty cycle; cheap Ozito-tier guns have 10-minute duty cycles where the Metabo HGE 23-650 runs continuously.
What's the duty cycle of a workshop heat gun?
The Bunnings DIY tier (Ozito) is documented at around 10-minute duty cycle per Whirlpool Forums reviews — 10 minutes on, then needs to cool. Professional-tier Metabo HGE 23-650 LCD and Hikoki RH650V are designed for sustained workshop use with no specified maximum duty cycle (you can run them all day at moderate temperatures). The trade-off is the price difference between consumer-tier and pro-tier professional units — typically an order of magnitude.
Does the Metabo HGE 23-650 LCD justify its premium over the HG-16-500?
Yes if you need temperature precision (vinyl wrap, electronics, heat shrink to AS/NZS spec), LCD display, programmable presets, ceramic heating element, longer cable (4m), or stationary base mode. No if your only application is occasional heat shrink and rough paint stripping — the HG-16-500 two-stage handles that adequately. Forum review on Garage Journal: "works great, temperature setting and all" but professionals note the supplied accessories (3 nozzles in the case) just rattle around loose.
Is Metabo or Steinel better for heat guns?
Garage Journal forum-validated answer: "Steinel makes heat guns and Metabo makes really nice grinders." Steinel built its reputation on heat guns alone — heat-gun specialist with the strongest pro-tier reputation. Metabo's HGE 23-650 LCD is the German-engineered professional equivalent — ceramic element, LCD, programmable, sustained workshop duty cycle. Steinel has the heat-gun-specialist pedigree; Metabo HGE 23-650 LCD is a genuinely matched pro-tier alternative. AIMS stocks Metabo and Hikoki; Steinel is not in standard stock — contact us for sourcing if you specifically want Steinel.
Can a heat gun start a fire?
Yes. The nozzle reaches 540°C+ on a professional unit. The power switch and fan motor inside the gun are NOT spark-free. The unit continues to produce heat for tens of seconds after the switch is turned off. Forum-documented incident on Garage Journal: a worker stored a heat gun in its case while still hot — case melted, internal plastic ignited, workshop caught fire. Safety: 20-minute cool-down before storage, keep flammable solvents and fuels away from the work area, never use in atmospheres with flammable vapours (petrol fumes, brake cleaner, paint thinner), keep a fire extinguisher within reach.
Can I use a heat gun on vinyl wrap?
Yes — heat guns are the standard tool for vinyl wrap installation. Workshop temperatures: 80-100°C for initial application (just activates adhesive), 100-150°C for conforming to curves (fender, bumper) where the vinyl needs to stretch, 100-120°C for post-heating across the entire wrap to set the adhesive and prevent peel-back. AU auto wrap and signage shops typically use LCD-display heat guns (Metabo HGE 23-650 LCD or Hikoki RH650V) because temperature precision matters — too hot stretches unevenly or burns through the laminate; too low and the wrap won't take the curve.
Does my workshop heat gun need test and tag under AS/NZS 3760?
Yes for commercial workplaces. AS/NZS 3760:2022 (In-service safety inspection and testing of electrical equipment) requires periodic testing of mains-powered electrical tools. Typical intervals: 12 months for office and light commercial use; 3-6 months for industrial, construction, mining, hostile environment workplaces (where the heat gun is exposed to vibration, dust, moisture). Cordless 18V tools generally don't require test and tag (no mains connection) but the charger does. Domestic/home workshop use is not regulated by AS/NZS 3760.
What's the brightest / highest-output heat gun AIMS stocks?
The Metabo HGE 23-650 LCD at 2300W and 650°C peak temperature is AIMS's highest-output unit. The Hikoki RH650V at 2000W is the next tier down. Both are LCD-display, ceramic-element, professional-grade. For workshop daily use, the HGE 23-650 LCD's variable 80-650°C range and programmable presets justify the premium over fixed-output alternatives.
Why is the Bunnings DIY heat gun so much cheaper, and what's the catch?
The Ozito 2000W and Ryobi corded line are DIY-tier products — wire-coil heating element (vs Metabo's ceramic), short 10-minute duty cycle per Whirlpool Forums reviews, plastic-body construction not built for sustained workshop use. The warranty is explicitly DIY-only — if you use the tool through a trade account or for commercial work, the warranty is void per the manufacturer. Fine for occasional home DIY (a few heat shrink terminations a year, one paint stripping project). Not built for daily workshop work — professional users report 6-12 month service life on Ozito under sustained use vs 5-10 years on the Metabo HGE 23-650 LCD.