Safest Hot Water Temperature? | Tankless Water Heater Temperature

Hot Water Heater Temperature, What’s the Safest Setting?

The following facts and statistics were collected from  the Consumer Product Safety Commission (cpsc.gov):

  • 34 deaths occur yearly due to hot water burns,seniors or children make up the majority of those deaths
  • One in four children will experience scalding from tap water
  • Hot tap water will cause more deaths than any other liquid related burns
  • For children, scalding is the most common burn-type injury
  • Over 3,500 scalding injuries occur yearly
  • Children younger than 4 are two times more likely to die from these scalding injuries than children between the ages of 5-14
  • Burns from faucet water happens most often in the bathroom and are usually severe because  the water is in contact with the majority of the body

Quick Facts:

  • After 2 seconds of exposure to 150 F water,you will suffer 3rd degree burns
  • After 6 seconds of exposure to 140 F water,you will suffer 3rd degree burns
  • After 5 minutes of exposure to 120 F water,you may suffer 3rd degree burns

NOTE: These estimates are for adults which means infants and young children will suffer even greater injuries much more quickly because their skin is more delicate.

Prevention:

  • Set your instantaneous water heater temperature to 120 F or less
  • Make sure you have an anti-scald device installed either in the pipe line or on the shower head  (this device will prevent  dangerous hot water from flowing out of the exit points )
  • Test the water with your wrist or elbow
  • Infants and children should be faced AWAY from the faucets to reduce the chances of them turning the hot water on.
  • Clearly label your faucets HOT and COLD
  • Keep the faucets in the COLD position after showering or bathing.
  • Never leave your child alone in any situation where there is hot water, NEVER ( Although this story,published on the American Burn Association website, is not related to tankless water heater temperatures,we think it drives home this point. )

We hope you agree,that tankless water heater safety should never be taken lightly.  Remember your tankless water heater temperature setting should be 120 F or less.

In most cases,dish washers have heating mechanisms that will make sure your incoming water is pre-heated to the required cleaning temperature before running through each cleaning phase.  Even a tankless water heater temperature setting of less than 120 F may be acceptable for your dish washer because of this heating mechanism.

 

For Further Information:

 

References:

  1. “When is Hot Water Too Hot”  June 01,2011.  http://www.cpsc.gov/nsn/whenhotw.pdf
  2. “Tap  Water Scalds”  June 01,2011.   http://www.cpsc.gov/CPSCPUB/PUBS/5098.html