A hot water cylinder is typically set to a temperature between 60°C to 65°C (140°F to 149°F) in New Zealand, which is the recommended range for safety and efficiency. This temperature helps to prevent the growth of harmful bacteria, such as Legionella, while also providing hot water suitable for household use.
Here's a breakdown of why this temperature range is important:
- Safety: Maintaining a temperature of at least 60°C helps kill Legionella bacteria, which can cause Legionnaires' disease, a severe form of pneumonia.
- Efficiency: Setting the temperature too high can lead to unnecessary energy consumption and potential scalding hazards.
- Regulations: Many regions have regulations or guidelines recommending a minimum hot water storage temperature for safety reasons.
If you are concerned about the temperature of your hot water cylinder, it's advisable to consult with a qualified plumber to ensure it is set correctly and safely. You can find more information at regencyplumbing.co.nz.