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Prevent Hot-Tap Scalds: Check Water Temperature and Bath Safety

Hot tap water can scald quickly. Check temperatures, supervise young children and ask qualified people about appropriate water-heating safeguards.

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The U.S. Consumer Product Safety Commission discusses about 49°C (120°F) as a residential scald-reduction reference. However, shared water-heating systems, microbial controls and local rules can require different storage settings. Consult building management or a qualified technician rather than changing unfamiliar heater controls.

Your try-it-at-home checklist

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1. Check whether shower or faucet water becomes unexpectedly hot or fluctuates sharply; stop using it if unsafe.
2. Carefully check bath and shower water before use and directly supervise young children.
3. Check the instructions for thermostatic mixing faucets or temperature controls and request service for faults.
4. If water is excessively hot, ask building management or a qualified technician to assess delivered tap temperature and scald protection.
5. Stored water and delivered tap temperatures may differ; do not independently change unfamiliar heater or plumbing settings, which may affect microbial control.
6. Check safe entry and slip prevention too; seek medical help for a burn or severe pain.

U.S. Consumer Product Safety CommissionAvoiding Tap Water Scalds ↗CPSC consumer safety alert reviewed: reference 120°F for household tap water, supervision of children and consultation with managers/suppliers about heater settings.U.S. Department of EnergyHome Energy Checklist ↗DOE checklist lists 120°F as a residential heater reference for energy and scald prevention.U.S. Department of EnergyPurchasing Energy-Efficient Residential Water Heaters ↗DOE notes that hot water storage temperatures, microbial protection and downstream mixing valve settings may differ; fixed universal adjustments were avoided.

Your try-it-at-home checklist

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