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Thermo Lignum’s® ecological techniques use only naturally occurring elements (air and water), sound biological principles and established laws of physics, to eradicate any wood boring insect pests from buildings, individual rooms or large objects.
 For the treatment of insect-infested structural or architectural timbers, our WARMAIR process has been adapted for use with portable gas fired heating equipment. It is a critical function of the in-situ WARMAIR process to prevent damage to any of the structural elements through moisture loss by controlling the relative humidity (RH) of the atmosphere surrounding them during the heating cycle.
Site Operation
Prior to enclosing the structure or component within a variable insulating system, up to 100 temperature and humidity sensors are positioned at predetermined locations within the treatment area. The Thermo Lignum® process is then applied by passing warm humidified air into the enclosure via insulated flexible hoses. A continuous flow of data is received via remote control from the sensors, enabling the operator to accurately monitor and adjust accordingly, the RH and temperature within the enclosed atmosphere. Once the core temperature has reached 55oC it is maintained for at least 2 hours before the cooling phase begins.
Site requirements
 Designed to deliver our acclaimed service to site, the fast and effective system requires just 3-phase electrical power (mains or portable generator), mains water supply and level standing to become operational. It is important that positioning of the heaters and ancillary equipment is achieved as close as possible to the structure. By optimising the distance between the heaters and the treatment area gas consumption can be reduced.
Portable Equipment Specification
Heater unit output: 142 kW (max.)
Unit weight (complete assembly): 200 kg
Air output: 5,700 m3/h
Fuel consumption: 6-11 kg/h (propane)
Electrical circuitry: 3phase/32amp/3pin+N+E)
Water supply: ½" Standard hose min.1.5 bar)
Mobile Chamber Specification
Gross weight: 7.5 tons
External dimensions: 8.50m (l) x 3.45m (h) x 2.50m (w)
Internal dimensions: 5.10m (l) x 2.40m (h) x 2.40m (w)
Volume/capacity: 30 cubic metres
Electrical circuitry: 3phase/32amp/3pin+N+E)
Water supply: ½"(Standard hose, min 1.5 bar)
Tail lift: 1 ton
Property Survey
Initially a survey must be carried out to assess the extent of the infestation and determine the feasibility of the treatment with regard to access, insulation, air- distribution, volume of the structure and available site services. An inspection report will then be submitted together with a quotation for the cost of treatment.
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