Legionella is a bacterium found in water systems that can cause serious illnesses such as legionellosis when contaminated water is aerosolized and inhaled. The bacterium grows fastest at temperatures between approximately 20°C and 45°C, with an optimal growth range around 35°C. Temperatures below 20°C inhibit multiplication, while temperatures above 60°C kill the bacterium. Therefore, temperature control is one of the most important measures against legionella growth in water systems.
An essential part of legionella prevention is the regular measurement and recording of water temperatures in hot and cold water systems. This requires specific legionella thermometers that are robust, accurate, and easy to use, so that building managers, installers, and facility managers can demonstrate that the water system remains within safe temperature guidelines.
At Thermapen Nederland, we offer a selection of professional water and legionella thermometers designed for testing water temperatures in tap water, boilers, boiler systems, and other potable water installations. Our instruments help you monitor the temperature in critical temperature ranges, allowing you to effectively mitigate risks and comply with risk and control plans for legionella prevention.
Why legionella thermometers are important
Legionella can develop in stagnant or slow-moving water that remains between 20°C and 45°C. By keeping hot water above approximately 60°C and cold water below approximately 20°C, the likelihood of bacterial growth is drastically reduced. Regular temperature checks with reliable thermometers are crucial to ensure that water installations meet these safe limits.
Applications
Our legionella thermometers and thermometer kits are suitable for:
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Temperature measurements in boilers and hot water systems
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Control of cold water installations where legionella growth must be prevented
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Sewerage, taps, and water pipes where temperature monitoring is important
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Facility management and legionella prevention programs to comply with legal requirements and safety standards
Legionella thermometer kits often include multiple probes for various measurement methods (such as immersion, penetration, or surface probes), a carrying case, and a traceable calibration certificate to ensure the accuracy of measurements.
By consistently and accurately performing temperature measurements, you can mitigate legionella risks, demonstrate that systems are functioning safely, and contribute to healthy water management in buildings and installations.
