The targets
“The thermal death point for bed bug adults and nymphs is 118° F ... but the thermal death point for bed bug eggs is 122° F,” and so “these cracks and crevices must reach 122° F for the heat treatment to be effective” (Virginia Cooperative Extension, 2024). The peer-reviewed study behind the industry (Kells & Goblirsch, 2011) adds the time dimension: eggs survive seven hours at 113°F and about 72 minutes at 118°F; the 99% lethal temperature for eggs is 130.6°F.
Treatment day
- Setup. Heaters and ducting; air movers into closets, under beds, behind dressers.
- Probes. Wireless sensors in the mattress seam, box-spring corner, sofa frame, nightstand drawer, baseboard gap.
- Ramp and hold. Technicians commonly run the room to about 135°F for four to five hours; we time the hold from the coldest probe crossing 122°F.
- Rotation. Cushions flipped, drawers opened, furniture turned.
- Residual. Virginia Tech’s supplement: ask the certified technician “to apply a residual insecticide after the heat treatment is completed” — a desiccant dust in the voids.
- Log and follow-up. Probe log, photos, and the follow-up inspection within a week, which the guide says the company “needs to provide.”
Why a licensed company
The residual step needs a pesticide licence; a heat-only crew cannot do it, which is why the guide says to hire “a certified pest management company ... rather than a heat treatment company that cannot legally apply pesticides.” OSU: make sure the company is “licensed by the Ohio Department of Agriculture.”
Prep
Remove what heat damages; leave the rest. “Minimal preparation is becoming the new standard.” The list →