Fast & Reliable Legionella Control
Legionella are extremely harmful. That´s why quick action and reliability are required to eliminate them from the water system. Our heaters are specialized in effectively combating legionella and can continuously heat water up to 85 degrees Celcius.
Thermal Disinfection with Mobile Wärme 24 – Your Benefits
- Constant water temperature
- Immediate & flexible use
- Professional advice
- Full Service
We Are Here for You
We guarantee fast and flexible support in case of legionella contamination and for preventive and routine disinfection. Our experts are not only there for you on-site, but also provide you with comprehensive support every step on the way. It goes without saying that we will help you choose the right heating device and, if required, take care of transportation, installation and dismantling as well as the thermal disinfection itself. Our mobile heating centers ensure a sufficient supply of the thermal energy required to heat the water.
What Happens During Thermal Disinfection?
During thermal disinfection, the water heater is operated in such a way that the water in all pipes is heated and reaches a temperature of over 70° Celsius. This temperature should be maintained for a least three minutes to ensure that all legionella or other pathogens in the water are eliminated. Permanently installed drinking water heaters are often not designed for such capacities and therefore cannot heat the water sufficiently. In this case, the use of a mobile heating unit is the perfect solution.
Thermal Disinfection – how Often?
The frequency of thermal disinfection depends on various factors, in particular the intended use and the hygiene requirements. Thermal disinfection is often used in water-feeding systems such as heating systems, hot water supply or process systems. Here are some general guidelines:
1.Drinking water supply: In drinking water systems, thermal disinfection should generally be carried out at least once a year to prevent bacterial contamination. This may vary depending on local regulations and requirements.
2. Heating systems: In heating systems, thermal disinfection may be necessary if germs or bacteria accumulate, which is usually the case with prolonged shutdown or insufficient water quality. Some systems may only require disinfection every few years.
3. Process plants: In industrial process plants, the frequency depends on the type of process and the hygiene requirements. It may be necessary to carry out regular disinfection to ensure the integrity of the process.
4. Specific situations: In certain situations, such as an outbreak of legionella or other pathogenic microorganisms, increased frequency may be required. Strict monitoring and, if necessary, adjustment of the disinfection frequency is important here.
Consult a specialist or expert for water hygiene for advice on the specific requirements of your system.
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FAQ
What is Legionella?
Legionella belongs to the coliform bacteria and causes a wide variety of illness in humans. The symptoms of legionnaires´disease (legionellosis) range from flu-like symptoms to pneumonia. Hot water pipes provide an ideal habitat for legionella, as they often find the right temperatures here to grow quickly. However, cold water pipes are also affected if the water is too warm.
How is legionella transmitted?
The pathogens are transmitted via atomized water so showers, air conditioning systems or taps, for example, are potential sources of infection. If water has been standing in pipes for a certain period of time (e.g., in hotels or vacation homes), you should check whether legionella can be found in the pipes. If this is the case, thermal disinfection may be necessary in order to eliminate the bacteria.
What is a Legionella Test?
Landlords must have their water tested every three years; a legionella test is hence mandatory. Water samples are taken on-site at various points, for example from water deposits on shower heads or taps. An accredited laboratory then analyzes the samples. If the legally defined limits are exceeded, the laboratory reports this to the responsible health authority. In this case, a risk analysis must be carried out to investigate the cause of the contamination and system-related risks.
What is the Legal Situation Regarding Legionella?
The Trinkwasserverordnung (TrinkwV) lays down precise rules as to which companies are affected by the obligation to test for legionella. This includes entrepreneurs and owners of a drinking water installation
- in which drinking water is supplied as part of a public or commercial activity and
- which contains a large-scale system for heating drinking water and
- contain showers or other facilities in which the drinking water is misted
The frequency of testing for drinking water supplied to the public is once a year. Water from commercial, but not public, large-scale drinking water heating systems must be tested at least every three years. In addition, DVGW worksheet W551 specifies the measures that are necessary to prevent or eliminate a spread of legionella in hot water systems in drinking water installations.
At what Temperature do Legionella Die?
Drinking water must reach a temperature of at least 70° Celsius for legionella to die. Temperatures between 55° and below 70° Celsius are only suitable for reducing growth in the short term. At temperatures between 20° and 55° Celsius, legionella can multiply in drinking water to harmful concentrations.
Was is a Legionella Circuit?
Modern hot water systems have a so-called legionella circuit. The system is heated to a high temperature at regular intervals. This procedure reduces the risk of legionella contamination.
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