Small Bed Bug Heat Fans Mean Big Problems

bed bug heat fans

With bed bug heat treatment we constantly see advances in programs and training that help the industry.
Most of this is provided by the experts that make it their mission to study bed bug behavior and determine the best means of eradication with the least amount of impact to the general population.
Lately, though we have seen the introduction of small bed bug heat fans heaters that run off of 120 V circuits that are being used to heat hotel rooms and small apartment areas to eliminate bed bugs. They have also been implemented in heating larger areas as well usually be left in place to heat areas over a 24 hour period. This is not only unsafe but I believe will only spread issues to other parts of the hotel or building in which the treatment is taking place.

The thermal death point of bed bugs is 117° Fahrenheit. Studies show that 100% of all eggs will be rendered nonviable at 130°F if held for 10 minutes at that temperature. (Thank you, Stephen Kells.) In most cases, electric heaters are brought in that are generator fed so that temperature rise can be steady and usually lethal temperatures can be accomplished within 1 to 2 hours.

Bed Bug Thermal Fans

The newest equipment being marketed is fan-based bed bug heat fans heaters which plug into multiple circuits and are left in place for 24 hours or longer until the heat treatment is completed. These units are usually used in smaller areas of 300 to 400 ft.². It is common that even with the smaller areas 4 to 8 circuits are typically required. Unfortunately, in many buildings, the electrical requirements are not there to sustain the number of heaters to bring the temperature up to levels lethal to bed bugs at a uniform or fast enough rate.

Seeing firsthand the activity of bed bugs in response to heat causes some concern as the new methods may not be helping eradicate bed bugs but may in fact, be spreading bed bugs to other units. We have seen this with bed bugs fogging or bombing whereas one unit is treated with a total release aerosol and the insects that are not killed flee to all surrounding units. Typically what we see is an initial response once we get over 100°F of insects emerging from areas that they are harboring. Upon emergence, we see a probing behavior where the insects are testing the areas that they are on to see if it is something that they can feed upon. In many cases we actually see bed bugs moving towards the source of heat being provided to treat the apartment.

Once we get closer to the thermal death point of bed bugs we see a change in behavior. In certain cases, this involves the bed bug attempting to dig deeper into its harborage area or it will start to move away from the heat source looking for an area of lower temperature. With traditional heating methods where you can maintain a good and steady temperature rise of 15 to 30 degrees per hour, this is usually not an issue. Before the bed bug population can flee the area they have already been exterminated. With Bed Bug Heat fans and equipment that is providing a temperature rise of only several degrees in an hour the allotment of time that allows for escape is much too great.

Time will tell whether or not this new method ( small low-powered BedBug Heat Units used to kill bed bugs) is a good addition to what traditional thermal remediation companies are doing. But in many instances, these packages of bed bug heat units are being sold to management companies as well as hotels and motels that have little pest control experience. In addition, most pest application laws require a licensed individual to apply perimeter pesticides which would in this case help prevent the escape of these insects into adjoining areas. Overall though the main issue with the Bed Bug Heat fans is the slow heat rise.

Based on my experience with thermal remediation tactics over the last 11 years I believe we will see a worsening of the issue, an increase in spread patterns in both hotels and buildings that attempt to do this on their own using these Bed Bug Heat units, and detraction to the reputation of thermal remediation practices which have been, up until this point, when performed by professionals, stellar.

Post On Bed Bug Injuries by Susan C Jones

Fact Sheet on Bed Bugs by Susan C Jones, PH.D., Assistant Professor of Entomology Extension Specialist, Household and Structural Pests of The Ohio State University Extension See the original article by clicking on the link below: Susan Jones Ohio Extension Bedbugs are parasites that preferentially feed on humans. If people arenʼt available, they instead will … Read more

Bed Bugs Can Induce Deadly Systemic Reactions in Humans Reported By Researchers

What bed bugs look like after feeding.


Study recently published by the Australian Entomology Association depicts the reactions that occurred after repeated feedings of bed bugs. This shows that certain people may develop allergic reactions to bed bugs that could be life threatening. Although uncommon this study proved that these reactions may occur and that medical intervention may be necessary.


 Entomology http://Entomology

Systemic and erythrodermic reactions following repeated exposure to bites from the Common bed bug Cimex lectularius (Hemiptera: Cimicidae)



Bed bugs (Cimex spp.) have undergone a global resurgence over the last 15–20 years. They readily bite humans, producing a range of cutaneous reactions. This article documents systemic reactions in two patients following repeated bites from the common bed bug, Cimex lectularius. Both patients had previously fed bed bugs on themselves without any serious complication, however upon feeding a new batch of the insects subsequently developed systemic urticarial reactions. Patient 1 fed 40–50 bed bugs on himself and after 8 min, he developed itch, swelling of the face, lethargy, profuse sweating and widespread wheals on the torso and limbs. The reaction disappeared in 5 h after treatment with systemic prednisone and antihistamines. Patient 2 developed a similar reaction after feeding five to six bed bugs on himself. In this case, the patient also developed chest tightness and breathing difficulties. Following a similar treatment, symptoms disappeared in 4 h. In light of the increasing exposure of this insect to the general public, systemic reactions in patients may present more commonly to the medical practitioner.

Latest Study On Bed Bug Resistance

Originally Published in PCT Magazine March 2016 PCT Magazine March 2016 Bed Bugs Resistant to Widely Used Pesticides, Study Finds Bed Bug Supplement – Bed Bug Supplement New research from Virginia Tech and New Mexico State University sheds light on bed bug resistance to the neonicotinoid class of pesticides. March 8, 2016 Subscribe Some of … Read more

Bed Bug Truck Thermal Treatments

The above video demonstrates the same principles of using a box truck to heat treat your belongings for bed bugs. The unit temperature is easily controlled and the items within easily manipulated to ensure everything is treated thoroughly killing all bed bugs as well as their eggs. The primary benefit of this method of extermination … Read more

Bed Bug Heat Treatments in NYC

Thermal remediation for bed bugs in New York City present special challenges to those that provide the services. In many cases we are required to work in units that are not easily accessible due to either the height or the configuration of the buildings footprint. In addition there are always the challenges of parking as … Read more

What are the signs of bed bugs

Signs Of Bed Bugs
Spotting-Signs of Bed Bugs

What are the signs of bed bugs so you can identify an infestation?

I received a call the other day from a woman who was concerned she had bedbugs. About a week after returning home from vacation she awoke with welts all over her body. She examined her mattress and found one small red insect. She called the management company who sent in a tech who promptly identified it as a bed bug, stated his office would run some tests on it, and left with the insect. No further inspection was done. She then received a call from the pest control company telling her she had bed bugs, to prepare for treatment and sent her a detailed prep sheet that included removing outlet covers, getting all her rugs professionally cleaned, washing and drying all her clothes, etc. etc. The woman called us because she was looking for heat treatment as an alternative to chemical treatment and a process that was less intrusive. After speaking with her for several minutes it became clear that there was the possibility this was not Cimex Lectulurius.

Bed Bug Evidence

We dispatched a canine who ran the unit which had no scent detected, was followed by a detailed inspection with no evidence or signs of Bed Bugs and we concluded there were no bed bugs in the unit. We did find spider beetles. Why our suspicions? First-bed bug infestations usually start out gradually. A few bites followed by a lapse of several days that slowly increases in intensity. Eggs take 10-14 days to hatch, males and females usually feed 4-5 days apart, nymphs take a week to morph into a later stage so unless you bring back a large number of insects it (the infestation) will start slowly. So waking up with bites all over doesn’t make sense. Also, bed bugs are easily identifiable to the trained eye. A tech that states it’s a bed bug and that it has to go to the office for “further testing” is immediately suspicious. I don’t know what kind of testing was done but it was obviously incorrect. So what can you learn from this case? First, not all skin reactions or “bites” are bed bugs. There are many causes of skin irritations, not just insects. Second SAVE YOUR BUG. This way you can get a second opinion and check yourself using the internet by looking at insect pictures. Most companies are ethical and honest but there are some that are cashing in on the panic and hype of bed bugs. It’s always prudent to verify. So if you suspect you have Bedbugs inspect, verify, and above all don’t panic.

What Kills Bed Bugs?

What kills bed bugs?

What kills bed bugs? In a study provided by Rutgers University; the Wang lab in conjunction with the Jersey City Housing Authority funded in part by the US EPA, Protect-A-Bed ,Susan McKnight Incorporated and BASF chemical Manufacturing and as reported by Rick Cooper at the Northeaster National Pest Management Conference in Tarrytown NY in January; bedbugs are a lot more active, in a lot more areas than previously thought and much harder to detect.

In this study they found that bed bug traps that were made of the interceptor type were the most effective in determining bedbug activity within an apartment. The number of interceptors per unit ranged from 12 initially to 48 once infestation was discovered The study was provided on a 300 unit low income housing senior facility. The effective rate of the interceptors were over 90%. Previously our classical version of bedbug infested areas was about 90% plus in the bedrooms and other lounging furniture and about 7% in other areas. Actual results prior to treatments found two thirds of bed bugs in other areas ; 63% in hallways, bathrooms, kitchens and 37% in the bedrooms. After treatment 17% were found at the sleeping and resting areas while 83% in areas other than the bedroom. Unfortunately there are those that still insist on treating rooms instead of units.

At this building there was a visual inspection done of five units where only one unit was found to be infested with bedbugs. After interceptors were placed all units were found to be active so the lesson from this is that visual inspection alone does not make a proper determination in most cases. Of 64 units in this study that were being monitored activity was detected in 41 or 64% of units the medium number of insects found were 4 showing low levels of activity. Note that 54% of these insects were captured away from the sleeping areas. Using the interceptors insects were not discovered during each 14 day inspection interval- there were skips in the discovery. So the number of visits needed to ensure elimination within 90% certainty or competence level was  3 visits at 14 days apart (so 45 days). Visual inspection alone was found to be unreliable. In addition study shows you have to place the interceptors away from the sleeping areas.

In any IPM program the goal is to reduce the rate of infestation, reduce chemical usage and create a program that is sustainable. Unfortunately at this point it is becoming realized that most pest control programs are not financially sustainable.

The program that was started developed the following procedures:

1) Education of staff and tenants

2) A baseline survey of all units within the building

3) Development of a low impact treatment protocol (reduced chemical usage)

4) New resident moving in went through a survey and physical follow-up inspection using two technicians within two weeks of arrival.

Prior to the survey management knew of 16 units that were infested. After the survey 39 additional units were found to be infested- 71% of these not being reported. 95% of this activity was identified by the use of interceptors alone. Of the 39 new cases 37 claimed they did not know or where unaware that they had a bed bug infestation. Over the next 12 months and additional 16 units were found through communitywide inspections. Of the units that were found to be infested 44 units had less than 20 bed bugs present, 18 units had 21 to 100 bed bugs present, seven units had 100 to 1000 bed bugs present and two had over 1000 bugs present.  14 of the 16 new units were discovered had 10 insects or less 12 of the 14 had less than five. The study showed periodic inspections were key to finding early infestations. With early infestations they were usually remediated with one to two visits. Over the 12 month period beginning levels started with 55 units infested, at the six-month mark they had 19 units infested and at the 12 month mark they had two units. Note that eight new were found. Any new people coming in were given the bedbug policy, given literature, were assured that it would be no negative repercussions if bed bugs were reported and two weeks after moving in got the visual inspection by two techs. Interceptors were placed under furniture legs  and of the  beds. The treatment program utilized Phantom, DE, and Transport. Note that chemical usage went from 8000 g on 53 units to less than 100 g. This is a huge reduction in pesticide usage.

This property was spending $50,000 to $60,000 per year yet there were very little results over the long-term. In the first year this program costs the building $64,000 but the price will be 12K to 16K per year. To maintain the current results would only two inspections per year and this is based on communitywide inspections and based on historical results. The initial, six months and 12 month inspections cost $34,000 while the treatments were $29,000 on 66 units. The overall results show that the majority of bedbug infestations are not being reported. It also shows that a baseline survey must be done. It also proves that monitors are key in identifying locations as well as units that are infested. Along with that periodic monitoring is essential. It also shows that elimination is possible with limited chemical use.

What I took away from this year-long study was several items. One is the importance of monitoring. Without monitoring and ongoing monitoring it is very easy for infestations to get away from us. Once levels increase it has been shown that bedbugs spread out just as part of their nature so all surrounding units are at risk. In many cases with monitoring we find that there is activity even though a physical inspection as well as reporting from the tenants would previously indicate that there were no bed bugs present. Education plays a key role. Education will foster communication as well as cooperation. Without the cooperation of the building as a whole we find that success is usually very limited. Bed bugs can be eliminated with minimal chemical use as long as it is applied properly and thoroughly and ongoing monitoring occurs to ensure that the original infestation is eradicated. And one of the major takeaways is that buildings can reduce their overall costs while providing superior results as long as management, tenants and the treatment company work together.

Bed Bug Bites

What Do Bed Bug Bites Look Like? I often get asked what Bed Bug Bites look like. People often want to show myself and my staff their areas of irritation-many times without any care about where those bites may be… Unfortunately you cannot tell if you have bedbugs by the marks they leave behind. This is because … Read more