Tag Archives: patents


New CEO Succeeds her Father, David Hedman, the Companies’ Late Founder, President and CEO

VENTURA, Calif., June 8 – The ThermaPure companies announced today that Stefany Hedman Westenskow has assumed the role of president and chief executive officer of E-Therm, Inc, and TPE Associates, LLC, the licensing companies for ThermaPureHeat®. Westenskow succeeds her father, David Hedman, who passed away peacefully at home on May 13 after battling cancer for several months. Age 59, Hedman was founder, president and CEO of the ThermaPure family of companies – Precision Environmental, PrecisionWorks, E-Therm, TPE and ThermaPure – and made remarkable contributions to the pest control and restoration industries by developing Thermapure’s structural pasteurization process of sterilizing structures using clean, hot air.

“Our family and all of us at ThermaPure are deeply saddened to share the news of my father’s passing,” stated Westenskow. “He leaves behind an important legacy of leadership, dedication to service, family and faith.” David Hedman also leaves behind substantial intellectual property; his patented processes prevented hundreds of thousands of pounds of deadly toxins from polluting the environment.
Hedman’s Legacy
Mr. Hedman’s passion as an inventor and entrepreneur began when studying engineering and economics at Stanford University. He started the first of a series of companies out of a desire to reduce environmental hazards in residential and commercial structures without using toxic chemicals. In the 1990s, he began developing ThermaPureHeat®, the now patented technology that is the application of clean, dry, hot air instead of dangerous and deadly chemicals to a structure to reduce or eliminate environmental contaminants. Nearly 30 years later, Hedman’s invention is the leading technology in removing environmental hazards from homes and workplaces, with numerous patents and trademarks.

New Leadership
Stefany Hedman Westenskow has been part of the ThermaPure companies’ leadership since 2007 and worked closely with her father on all management and operations issues at the companies while also overseeing the legal department for three years beginning in 2013. Maintaining the current, capable team, Westenskow plans to grow the ThermaPure brand with a renewed mission to protect and pursue innovative and environmentally sound solutions for pest and restoration issues. In an internal statement, Westenskow committed to honoring Stedman’s memory by “continuing the work he believed in so deeply and protecting what he worked so hard to achieve.” She pledged to run the companies as usual and as her father founded them, “with a stalwart and dedicated focus on innovation, environmental consciousness, teamwork, honesty, and smart and ethical business practices.”

Memorial Service
A memorial service to honor Mr. Hedman’s life was held in May. In lieu of flowers, contributions may be made to a special fund set up by the Boy Scouts of America:
Hedman Philanthropic Fund
1325 W. Walnut Hill Lane
Irving, Texas 75038

About ThermaPure
ThermaPureHeat® is a patented technology that has revolutionized the pest control and restoration industries through the controlled application of sauna like temperatures to a structure or portion of a structure with a strong emphasis on simultaneous filtration to reduce the potential for spreading contaminants. It has been proven in tens of thousands of applications to be an effective treatment for wood-destroying organisms, bed bugs, mold, bacteria and viruses without the use of toxic chemicals.
ThermaPure’s intellectual property includes several patents and trademarks. Additional companies in the ThermaPure family include Precision Environmental, Inc., an environmental remediation services and operating company; PrecisionWorks; E-Therm, Inc., a licensing company; and TPE Associates, LLC, a pest services licensing company. With headquarters in Ventura, California, the mission of these companies is to reduce humanity’s exposure to lethal chemicals and carcinogenic substances, to improve the quality of life for asthma sufferers, and to provide living and working conditions that have less exposure to dangerous mold, bacteria, viruses and chemicals.

A Realtor’s View of ThermaPure

We are very pleased with this short article that mentioned us in the Ventura County Star Sunday entitled, “Don’t Get Bit by the Termite Tent.” Thank you for writing this Brian Guevara! Here is what he had to say: 


Nothing is as frustrating to a homebuyer as the wait to move into the home they have just purchased because of a “termite tent.”

Ventura County real estate agent Brian Guevara has found away to move the process along: ThermaPure Heat Method.

Guevara has become a proponent of the system that kills termites and other bugs with heat rather than chemicals.

“I like it because it’s faster,” said Guevara, a RE/MAX agent with the Ventura office. “It costs about the same, and it doesn’t leave behind any chemical residue.”

In the ThermaPureHeat method, the extermination company skips the tent. Instead, it brings a number of heaters into the home and heats the interior of the home up to 150 degrees. (Lipsticks, candles and other items that might melt are safely placed in the refrigerator.) The heat kills termites and other small insects. It also takes care of any mold and pathogens.

After the interior of the home is heated for several hours, the home is cooled with fans.

The entire process takes about 12 hours. Tenting the home and treating it with chemicals will keep the homeowner out of the home for several days.

“I like it because the homeowner is anxious.

They want to move in. This lets that happen much sooner,” said Guevara. “The costs are comparable. And there is no chemical residue in the house. The guarantee is comparable to the traditional methods so the customer has nothing to lose.”

ThermePureHeat is a method developed and patented by Ventura County businessman David Hedman. The ThermaPureHeat method heats the ambient air inside structures up to 150 degrees for several hours in order to eliminate termites and other bugs, as well as mold, mites, allergens and other airborne pathogens. In water damage restoration, the method sanitizes the structure while it dries.

Brian Guevara is apracticing real estate professionalwithRE/MAXGold Coast Realtors.

He has been serving Ventura County for over 30 years and is a member of the Hall of Fame for RE/MAX International. He can be reached at 933-6600.

ThermaPure Brings the Ultimate Safe Harbor: Restoration Made Easier, More Effective

Restoration professionals explain how ThermaPure’s heat method benefits their companies.

C&R January 2015 ThermaPure

This article was originally published in the January issue of C&R magazine and has been reprinted with permission from the Restoration Industry Association.

Everyone has heard the theatrical maxim: The show must go on. But what if the actors, stagehands and musicians are ready, but the production office beneath the stage flooded 36 hours before the scheduled show?

That’s what happened at a stage show in Orange County, California, in April 2013. Operators managed to dry the production office completely, kill the mycobacterial residue and eliminate odor prior to the show, thanks, in large part, to the ThermaPure Heat method.

The method has been growing in popularity in the restoration industry. Firms that previously used only the wire brush and scrape or replace methods now have another choice: ThermaPure Heat.  It essentially pasteurizes a space by heating the area to a lethal temperature, up to 150 degrees Fahrenheit. When the temperature reaches that point, the structure is dried and bugs and bacteria are killed.

“It’s great,” says Fred Ananian, owner of Coast Risk Management based in California. “This gives me a tool in the bag for restoration work that I never had before.” The heat method reduces the time spent in restorative processes by half and often reduces the cost by well more than that. Ananian faced a job in an engineering firm’s office space that was flooded on a Tuesday. He started the job Wednesday and finished clean-up on Saturday. “After that project, I got a call from the insurance adjuster who said, ‘Fred, you didn’t charge me enough because you saved me about $120,000 in reconstruction costs.’”

Bill Weber is one of the pioneers of mold remediation; he has been at it since 1998. “I was skeptical about this, but the result was good,” says the regional manager for the Anderson Group in Northern California and a leader at DKI, the largest restoration contracting organization in North America. Weber tells the story of a long-term roof leak into a one-bedroom apartment on the sixth floor of an apartment complex that had created a large water problem. “Typically I follow all the IICRC  standards: sanding, wire brushing and so on. In this case, Jared [Perez of ThermaPure] challenged me to do the gross removal and then heat it up. The process took one day for the heating and two days for the removal. We had a post- remediation verification, and it came up clean.”

Rich Wasvary has used ThermaPure Heat more than 1,500 times for his clients in the New York and New Jersey area. That region has been hit with hurricanes and storms that have changed the nature of the aquifers and landscape. These changes have caused thousands of homes and offices to flood.

“The difference with ThermaPure is that you are cleaning the actual structure, even in places that you cannot see,” he says.

He faced particular challenges after Superstorm Sandy hit the New Jersey coast in 2012. “There was a time demand on those jobs. The owners wanted to get the properties ready for rental in the next season.” If the company was forced to do major deconstruction and reconstruction, the properties would not be ready, and the owners would lose rental income. ThermaPure helped dry the structures and reduce the amount of construction time needed.

John Nelson, project manager for Alliance Environmental Group, Inc., says about 60 percent of his firm’s restoration work in California and Arizona relates to flooded crawl spaces. “We are talking about areas that have been completely saturated with water. Areas that have inches or feet of water in the crawl space. Our restoration clients extract the free water, and they have no efficient way to dry the crawl space. We are able to use elevated temperature for three or four days to dry the crawl space and dry the framing. We are able to increase the temp to kill any mycobacterial. Any sewage loss? We would kill that.”

Nelson says that the process has additional tangential benefits: It kills odor and small bugs. Traditionally, contractors use ozone or a fogging method to mask the odor.  “It didn’t reduce it – just got it to an acceptable level,” Nelson says. “But with this method, we are able to heat the area, and then use air movers to move air flow through the area and actually remove the cause of the odor.”

Ananian has been an early adapter of ThermaPure Heat, and it has created a reputation and a business advantage for him in the high-income area of Orange County where he operates, he says.

“We had a high-end  customer who had moisture trapped under the marble he had just laid. The marble was sitting on top of about a three-quarter-inch mud pack and the contractor had sealed the slab. No matter what they tried, they had floor efflorescence,” says Ananian. “We used ThermaPure to heat the area and dry out the moisture. Problem solved.” Another home had water damage and $200,000 worth of murals painted on the walls. Ananian’s team was able to dry the area without removing and destroying any of the murals.

John Martin, president and owner of Certified Disaster Cleaning and Mitigation based in Salinas, California, says homeowners and insurance companies are fans of the heat method because of what they don’t have to do.

“A typical case for us is a leak behind a dishwasher,” Martin says. Repairing the damage can be costly and difficult without using heat. “We would have to pull it out of there and, depending on the extent of the damage, rip out dry wall and cabinets and granite countertops. And you know that can run $10,000, $15,000 or $20,000,” he adds. Using ThermaPure Heat allows contractors to leave drywall intact, for the most part. “The homeowners are happy and the insurance companies are even happier,” he says.

ThermaPure Heat is being used in restoration projects such as:

◾   After-water damage in a residential structure, particularly in structures in which the crawl space has been flooded.

◾   Crime scene clean-up. One firm is using ThermaPure Heat to clean up the sites of homicides or former methamphetamine laboratories

◾  Disaster clean-up. One ThermaPure Heat licensee in New York relied on the method extensively after Superstorm Sandy.

◾   Removal of odors. Anything from a kitchen fire odor to a heavy stench of cigarette smoke can be taken care of.

◾   Floor efflorescence in a basement or under a finished floor.

◾   Leaks in confined spaces.

◾   Structural pasteurization and rodent removal/decontamination.

By Tim Gallagher and David Hedman

Why Heat Over 105° F?

This article was originally published in the November/December issue of C&R magazine and has been reprinted with permission from the Restoration Industry Association

When you apply sauna-like temperatures to a structure and use filtration to capture contaminates before they spread, you use a method similar to the one that has been effective on food for more than a century. But only recently has the process been created to use in structures.

ThermaPureHeat uses heat on structures in a way that is similar to how Dr. Louis Pasteur used heat on food. Pasteur determined that by heating food products to a temperature of approximately 60 degrees C (140 degrees F) for several minutes, bacteria, viruses, protozoa, molds and yeasts in the food would be reduced to levels that would no longer cause the food to spoil or harm those who ate it. Pasteurization improved the shelf life of food products and, more importantly, reduced levels of contamination to allow for safe consumption without damage to the food.

Today, similar principles are used in structural pasteurization. Structural pasteurization is a process in which the temperature of a building or portion of a building is increased to a level that will reduce the targeted organ­ isms to acceptable levels while minimizing damage to the structure. This is a main component of ThermaPureHeat. Joe McLean, chief executive officer and co-founder of Alliance Environmental Group Inc., headquartered in Azusa, California, stated: “ThermaPure is a significant part of our business and provides us with a unique tool for our clients. Over the past three months, Alliance has done nearly 500 ThermaPureHeat projects. We solve many indoor problems with ThermaPure.”

During the past 10 years, ThermaPure  has acquired  the rights to insect patents;  been granted  patents for the remediation of mold, bacteria, viruses and volatile organic  com­ pounds in structures; and has eight patents that strengthen the control  of the technology for a range of indoor  air quality uses. Additionally, the intellectual property includes more than 3 5 trademarks and foreign patents. Although the company started as a technology to control insects, it has expanded the method to other uses, such as in the restoration industry. A structure damaged by water can be effectively remediated through heat. The results can be better than traditional restoration methods.

ThermaPureHeat as a Structural Drying Tool

ThermaPureHeat as a Structural Drying Tool ThermaPureHeat is a complete water loss restoration process because it combines high-temperature drying and sanitization in a single restoration process. The application of high-temperature drying has been increasing as many restoration contractors are now using it. Additionally, it is defined in the most recent version of the Institute of Inspection, Cleaning and Restoration Certification (IICRC) SSOO, Reference Guide for Professional Water Restoration. Structural pasteurization is recognized by the IICRC remediation standard, S520, as a process that can be effective in killing organisms.

According to an Xactimate/ThermaPure report, ThermaPureHeat is an effective restorative drying process for the following reasons:

  • High-temperature applications will dry most structures more quickly.
  • Applied appropriately, high-temperature drying is more thorough, reaching previously inaccessible areas such as wall cavities.
  • High-temperature drying is more effective with porous materials, resulting in fewer replacements.
  • The duration of the restoration process is faster, so loss mitigation is reduced by minimizing build back.
  • By reducing the duration of the restoration processes, Category 1 water losses are potentially resolved before they become contaminated.
  • High-temperature drying will sanitize the affected areas.
  • In a Category 2 water loss, structural pasteurization can resolve bacterial contamination concerns.
  • In a Category 3 water loss, ThermaPureHeat is effective in killing most species of bacteria, viruses, helminths and other unhealthy contaminants.
  • High-temperature drying and structural pasteurization are both processes recognized in the IICRC drying standard, SSOO, and the mold remediation standard, S520.

The Move Toward High-Temperature Drying and Structural Pasteurization

The  process of high-temperature drying and structural pasteurization  are becoming the preference  because it saves time and money, and it is effective in resolving issues before they turn into bigger problems. Specifically, ThermaPureHeat reduces drying cost (this has been demonstrated using Xactimate calculations), relocation expenses and business interruption costs, and it reduces or eliminates secondary damage (microbial contamination), demolition requirements and restoration/rebuild costs.

Recently, an independent testing facility, CodeBlue, tested “directed heat thermal energy drying against traditional drying methods.” Once the drying was complete, results were compared and it was confirmed that high-temperature drying reduces drying time.

By Larry Chase and Tim Gallagher