Heat treatment
Bed Bug Heat Treatment
Whole-room heat raises a sealed room until every stage of the insect, eggs included, is past what it can survive. It is a strong tool for some jobs and the wrong tool for others.
Heat only works where it reaches. The inspection decides whether it will.
Bed bug heat treatment in Melbourne means heating a whole room, with everything left in it, until the temperature inside the furniture, the mattress and the cracks is high enough for long enough to finish the insects at every stage of their life. Portable electric heaters and fans do the work, probes report back from the slowest spots in the room, and the operator holds the run until those probes read what the equipment maker specifies.
It is sold as the one-session answer, and in the right room it comes close. The appeal is simple: the same run that kills adults and juveniles also kills eggs, which are the stage that normally forces a second visit. The catch is equally simple. Heat does nothing the day after, so anything that walks back in survives, and heat cannot kill what it never reaches.
This page is about heat on its own. The inspection, the staged bed bug treatment Tim normally runs and what happens to beds, bedding and furniture in a standard job are covered on the parent page. Here you will find how a heat run works, where it beats a chemical treatment and where it loses, what has to leave the room first, the limits nobody advertises, and the questions worth asking whoever quotes you.
The physics
How does a bed bug heat treatment actually work?
Heaters and air movers lift a sealed room well above normal room temperature, and the heat is held until the slowest, coldest spots reach the target and stay there. Temperature probes sit in those hard spots, inside a mattress, in a bed frame joint, behind a bedhead, inside a drawer. The room is treated when the probes agree, not when the air feels hot.
Bed bugs cannot cope with extremes of temperature, which the Better Health Channel notes among their basic characteristics, and that is the whole premise. The target temperature and the hold time come from the heating equipment and its maker's instructions, not from a figure a technician picked, which is why any honest operator will quote you a number from their own gear rather than a rule of thumb.
Air movers matter as much as the heaters. Hot air left alone sits near the ceiling and leaves a cool layer at floor level, where most of the insects are. Fans push it down and into the places it has to go: along skirtings, under the bed, into the wardrobe base. Heaters with no air movement is the commonest way a heat job fails.
- Whole-room heat
- A treatment that heats an entire sealed room and its contents at once, using portable heaters, fans and temperature monitoring, so that furniture and belongings are treated in place rather than removed.
[Not yet confirmed: whether Tim owns and operates heat equipment, or whether heat jobs are referred to a specialist contractor. Confirm before this page goes live.]
Honest comparison
When is heat the better choice, and when is chemical?
Heat wins where the job is heavy, the turnaround is tight or the contents cannot take a chemical treatment. Chemical wins where re-introduction is the real risk, where the budget is the constraint, or where a room cannot be sealed and powered. Neither method is better in general. They solve different versions of the same problem, and a lot of jobs end up using both.
| Situation | Heat | Chemical |
|---|---|---|
| Eggs | Treated in the same run as the adults | Usually needs a return visit timed to hatching |
| Protection afterwards | None at all once the room cools | Residual deposit keeps working for weeks |
| Heavy, long-running problem | Strong, because numbers and eggs go together | Workable, but normally staged over visits |
| Room back in service fast | Same day once it cools and ventilates | Needs the re-entry time on the product label |
| Flat with shared walls | Risks pushing insects into the next unit | Treats pathways and adjoining rooms as well |
| Cost | Higher: equipment, power, time, usually two people | Lower for the same room |
Three kinds of job make heat genuinely worth the extra cost. The first is accommodation on a deadline: a motel room, a short-stay apartment, student housing or a guest room that has to be usable tonight rather than in a fortnight. The second is a household that cannot have a residual treatment, for medical reasons or by preference. The third is a room full of belongings that are awkward to treat any other way, such as books, soft toys and luggage, all of which heat passes through if the run is set up properly.
Chemical treatment holds the advantage in the situation most Melbourne households are actually in. One bedroom in a share house or a block of units, insects that came from somewhere else, and a real chance of them arriving again next month. A residual deposit keeps working after the technician drives away, and the Better Health Channel notes that repeat visits may be needed to deal with every stage of the life cycle. Heat gives you a clean room and no cover at all.
Preparation
What has to come out of the room before heat?
Anything that burns, melts, bursts, breathes or holds a charge. Aerosols and gas cylinders, lighters, candles and wax, medicines, cosmetics, perishable food, wine and spirits, vinyl records, instruments, artwork, televisions, laptops, consoles, batteries, houseplants, pets, fish tanks and people all leave before the heaters start. The operator gives a written list, and the list is not optional.
- Strip the risk listPressurised cans, flammables, wax, electronics, batteries, medicines and anything living out of the room and well away from it.
- Open everything upDrawers out, wardrobe doors open, furniture pulled off the walls, stacked boxes spread out so hot air can get between them.
- Seal and monitorDoor and vent gaps closed, probes placed in the slowest spots, smoke alarms and sprinkler heads protected or isolated with building consent.
- Hold and verifyThe run continues until every probe holds the target, then the room cools and is ventilated before anyone goes back in.
- Do not bag things up and carry them out unless the operator tells you to. Moving an infested item is how a one-room problem becomes a three-room problem.
- Tell them about the building if you are in a flat or a motel. Sprinklers, fire panels, shared ceilings and switchboard capacity all change the plan.
- Check the power before the day. Banks of heaters need more than one circuit, and some jobs need a generator or three-phase supply.
- Plan the day out, with pets booked somewhere and the room off limits until it has cooled and been aired.
Heat damages more than people expect. Glued veneer and laminate edges can lift, candles and crayons turn liquid, musical instruments move out of tune, old photographs and artwork cockle, and sealed cans vent. Ask for the damage list in writing, ask who carries the risk if something is ruined, and take anything irreplaceable out yourself.
The real limits
Why is heat dearer, and what does the price not buy?
You are paying for equipment, electricity, a long on-site day and usually two people, and the run buys you no protection at all once the room is cool. That is the honest trade. Eggs are dealt with in one session, and the morning after the treatment the room is exactly as defenceless as any untreated room in the building.
Volume of air and furniture to bring up to temperature, and how many rooms are run at once.
Stairs, lifts, limited circuits, a generator, or a building that needs the fire system isolated.
A cluttered room takes longer to heat through and needs more probes to prove it got there.
Three limits deserve to be stated plainly before anyone pays for a heat run.
Wall voids, cavity skirtings, the back of a built-in robe and the middle of a dense stack can all stay below target while the room reads hot. That is where survivors come from, and it is the reason probe placement is the skill in this work.
Insects move away from rising heat. Without containment and attention to the edges, some leave along a skirting line or a service penetration into the next room or the neighbouring unit, and the problem reappears next door.
There is no deposit left behind. A bag from a trip, a second-hand bedhead or a bug from an untreated unit restarts it, which is why heat is often paired with a residual at the perimeter and in adjoining areas.
Nobody should quote you a dollar figure for this sight unseen, and nothing on this site invents one. What the method costs depends on the room, the building and the access, and indicative ranges for the pests Tim treats himself sit on the pest control pricing guide. What you should expect either way is a figure approved before work starts, with nothing added to the invoice afterwards.
Next step
What should you ask a company offering heat treatment?
Ask who owns the equipment, what target they hold and for how long, where the probes go, and whether you get the temperature log afterwards. Ask what is included if insects turn up again, whether adjoining rooms are treated, and what they want removed. Vague answers to any of those are the warning you need.
- Do you own and run the gear? Subcontracting is normal and fine, but you should know who is standing in your bedroom and who holds the licence and insurance for the work.
- How many probes, and where? Three or four readings from the awkward spots tell a real story. A single sensor in open air tells you nothing useful.
- Will I get the data? The run should produce a temperature record you can keep, which matters doubly for a motel, a rental or a managed building.
- What covers a return? Ask what the guarantee covers, what voids it, and whether a follow-up inspection is in the price or billed again.
Victoria requires a licence to apply pesticides commercially, and the state's pest control licensing rules are public, so asking for a licence number is a reasonable question rather than a rude one. Tim's is No. 86488, the business carries insurance for residential and commercial work, and the terms of the re-treatment guarantee are set out for the treatment you book rather than promised in general.
Talk through your room first
Describe the room, what is in it and how far back the bites go, and you will get a straight recommendation.
Ask Tim for a quoteNot sure it is bed bugs?
Bites alone are not a diagnosis. Check the seams, joints and spotting first, then decide what the job needs.
Read the bed bug self-check guideHeat is one answer to one pest. If you are weighing it up against everything else on offer, the full list of treatments Tim provides shows what he handles himself, and the Melbourne pest control service overview explains how a job runs from that first phone call through to the review visit.
Questions
Heat treatment questions worth asking
Does heat kill bed bug eggs?
That is the main argument for it. Eggs are the stage that survives many chemical treatments and forces a second visit, and a properly run heat session is meant to take them out alongside the adults and juveniles. The condition is reach: an egg in a spot that never got to temperature is an egg that hatches.
Is heat safe for my furniture?
Most furniture handles it, but not everything does. Glued veneer, laminate edging, wax, candles, vinyl, instruments, artwork, old photographs, electronics and anything pressurised are at risk. Ask for the removal list and the damage list in writing before the day, and take irreplaceable things out yourself rather than trusting a general assurance.
Is heat treatment dearer than a chemical treatment?
Yes, for the same room. You are paying for heaters, air movers, monitoring, the electricity and a long day with usually two people on site. Whether that is worth it depends on the room, the deadline and the contents. It does not buy any protection against the insects being brought back in.
Do I need to leave during a heat treatment?
Yes. The room is sealed and run well above a liveable temperature, so people, pets, fish and plants are out for the whole session and until the space has cooled and been aired. Plan on being out for most of the day, and ask for the expected timing when you book so you can organise pets.
Can one heat session end the problem for good?
It can end what is in that room on that day. It cannot stop the next one arriving. Luggage from a trip, a second-hand bed base or an untreated flat next door will restart it, so heat is often paired with a residual treatment around the edges and a follow-up inspection a few weeks later.
Does a steam cleaner do the same job?
No. Steam is useful on a seam, a tuft or a skirting edge, and the Better Health Channel lists steam cleaning carpets among the measures worth taking, but it only treats the surface the nozzle touches. Whole-room heat works on the volume of the room and its contents at once, which is a different scale of job.
Want an honest answer on heat for your room?
Describe the room, the furniture in it and how long the problem has been running, and you will hear which method fits, what it involves and what it costs before you decide.
Sources: the Better Health Channel page on bedbugs and APVMA product registration.