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Simple, straightforward and low shipping rates for these scald protection products.

Scald Protection

Scald protection devices are a must in homes with young children, the elderly and physically challenged individuals - but are recommended for every home and may even be code in some areas. While caution is always first and foremost with regards to scald prevention, scald protection devices can help to maintain safer water temperatures for you and your loved ones.

The Scalding Truth

What every parent or caregiver needs to know about hot water injuries

  • Scalding accidents occur most frequently in the bathrooms and kitchens - where they are most preventable.
  • Hot water scalds account for 20% of all burns.
  • More than 2,000 American children are treated for scalds each year.
  • Scalding often leads to additional injuries such as heart attacks, shock, falls, and serious broken bones, particularly among the elderly.
  • Scalding and other burns require some of the most expensive and physically extensive treatments, including long hospital stays, costly skin grafts, and plastic surgery.
  • Most U.S. states now mandate some form of anti-scald measures in building codes.
  • The International Association of Plumbing and Mechanical Officials have amended the Uniform Plumbing Code to require anti-scald protection.
  • A bathroom sink and shower can be fitted with anti-scald protective devices for very little money. Given current technology, hot water injuries can be virtually eliminated in the house.

Temperature Time to Cause Burns
Adult Child Under 5
100°F Cool bath Average bath
102°F Average bath Warm bath
105°F Average hot tub NOT recommended
120°F 9.5 minutes 4.5 minutes
125°F 2 minutes 1 minute
130°F 30 seconds 10 seconds
135°F 15 seconds 4 seconds
140°F 5 seconds 1 second
150°F 1.8 seconds 0.5 second

Most water heaters come factory set (or with a factory recommended setting) at 120°F - it is recommended you follow manufacturer's recommendations for the temperature setting to provide further protection against burns or scalding.

Whole House Anti-Scald Thermostatic Mixing Valve
Aquamix Valve by Honeywell Sparco

Aquamix thermostatic anti-scald valve
These mixing valves feature:
  • Help to protect against accidental burns or scalding from water that is too hot
  • Adjustable temperature range from 100°F to 145°F
  • Proportional valve effectively mixes hot and cold water to regulate temperature with a working pressure up to 150psi and incoming maximum water temperature of 212°F (boiling)
  • Helps save energy by regulating hot water demand
  • Durable, long-lasting brass construction with Teflon coated spool and body to prevent mineral buildup and extend life
  • ASSE 1016-T and 1017 approved - IAPMO approved
  • Available in two sizes to meet your installation needs

These units are to be installed in a hot water line and require a cold-water feed. They also require a swing check valve on the cold water feed line to prevent hot water from entering the cold water system. We also recommend a hot water expansion tank when you install these types of valves to prevent excessive pressure on the hot water side (due to hot water expansion). These types are best installed right at your water heater.

Description Threading
NPT Union NPT Union Sweat
Anti-Scald Valve with 3/4" inlets/outlets - 8gpm max flow rate $146.93 $169.97 $164.36
Anti-Scald Valve with 1" inlets/outlets - 12gpm max flow rate $173.92 $199.93 $189.82

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Anti-Scald Mixing Valve by Legend Valve

Anti-Scald Mixing Valve
This mixing valve features:
  • Helps protect against scalding from water that is too hot
  • Saves energy by controlling hot water demand
  • Mixes hot and cold water to provide a constant water temperature
  • Adjustable temperature range so you can choose what's best for your family
  • Available in several sizes to meet your needs - view flow rates
  • A.S.S.E. 1017 tested and certified
  • Accuracy within +/- 1°
  • Max working pressure 225psi - Max temp inlet 180°
  • View mixing valve specifications

This valve maintains a constant water temperature, preventing scalding water from reaching end-point devices in domestic water installations. There are three adjustable (100°, 110°, 120° F) settings on this unit, which automatically regulates domestic water temperatures at fixtures by combining both hot and cold water and by reducing hot water flow if the cold water is shut off.The manufacturer specifies that installation and maintenance should only be performed by a qualified plumber, and they recommend an in-line filter such as a wye-strainer installed before this valve.

Description Temp Range Inlet/Outlet Size
1/2" 3/4" 1"
Anti-Scald IPS Valve 100°F - 120°F $124.58 $125.79 $114.95
Anti-Scald Union Sweat Valve 100°F - 120°F $125.61 $125.96 $126.46
Anti-Scald IPS Valve for Radiant Heat 100°F - 140°F $112.04 $112.24 $112.37

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1/2" Tempera Automatic Pressure Compensating Valve
By Precision Plumbing Products (PPP)

Tempera anti-scald valve
The Tempera valve is a highly sensitive pressure balancing valve that holds a selected water temperature to plus or minus 3 degrees regardless of incoming pressure changes. It responds within milliseconds to pressure loss on either hot or cold sides. It is normally installed between the hot and cold supplies and a shower valve. Tempera valves may be installed in any position or at any angle. When installing a Tempera valve, be sure to leave a way to access the valve if maintenance is required.

Note: The TRB-2 valve is not compatible with the Moen Chateau series single control mixing valves.

To see more pictures of the Tempera and a typical installation, click here.

- ASSE 1066 approved
- ISO American Global Standards 9001 Certified
- Proudly made in the USA

Pressure compensating valve TRB-2 = $94.59

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View our selection of other pressure balancing valves

ALL brands of man-made mechanical devices WILL (eventually) fail. The scald protection devices offered above are all mechanical devices, and therefore, it's best to design your hot water systems to not rely on these (or any) devices as your first defense against scalding.

Frequently Asked Questions

Q. "While taking a shower, sometimes the water temperature changes. Why does this happen and how can I prevent it?"
A. This generally happens when someone uses water from the same water system (for example when flushing a toilet or using the kitchen faucet), at the same time. This causes changes in your pressure in the water line feeding your shower faucet. When you have changes in pressure on one side and not the other, you will feel the result of different volumes of hot versus cold water. To solve this problem, you can either install/increase your water piping sizes (which will help a lot in having less pressure fluctuations), or install a pressure balance device on the hot and cold water that feeds the shower faucet This device detects changes in pressure and automatically balances it. You can also replace the shower faucet with a pressure balance faucet. If none of these are an option, you may want to purchase a scald protector to reduce your chance of getting scalded, but you would still be subject to temperature fluctuations.

Q. "I have low water pressure, can I use these products?"
A. ALL of the products on this page will reduce your pressure even more. These anti-scald devices do reduce the pressure as they have friction loss, etc. If your water system is marginal and you cannot have less water pressure, then these products are not for you.

Q. "When installing the anti-scalding mixing valves are there any other helpful hints?"
A. We believe that whenever you install an anti-scald mixing valve after the water heater that you should also install a check valve on the cold side, an in-line screen (such as a wye-strainer) and an expansion tank.

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