HOME INSPECTOR DANBURY CT - HOME INSPECTIONS YOU CAN COUNT ON - SERVICING RIDGEFIELD, NEWTOWN, BROOKFIELD, NEW MILFORD, REDDING, WILTON, WESTON, NEW FAIRFIELD, BETHEL, EASTON, SOUTHBURY - BEST HOME INSPECTORS NEAR ME
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ANTI-SCALD VALVES

Anti-scald valves, also known as tempering valves and mixing valves, mix cold water in with outgoing hot water so that the hot water that leaves a fixture is not hot enough to scald a person.

Facts and Figures
  • Scalds account for 20% of all burns.
  • More than 2,000 American children are scalded each year, mostly in the bathroom and kitchen.
  • Scalding and other types of burns require costly and expensive hospital stays, often involving skin grafts and plastic surgery.
  • Scalding may lead to additional injuries, such as falls and heart attacks, especially among the elderly.
  • Water that is 160º F can cause scalding in 0.5 seconds.

Unwanted temperature fluctuations are an annoyance and a safety hazard. When a toilet is flushed, for instance, cold water flows into the toilet’s tank and lowers the pressure in the cold-water pipes. If someone is taking a shower, they will suddenly feel the water become hotter as less cold water is available to the shower valve. By the same principle, the shower water will become colder when someone in the house uses the hot-water faucet. This condition is exacerbated by plumbing that’s clogged, narrow, or installed in showers equipped with low-flow or multiple showerheads. A sudden burst of hot water can cause serious burns, particularly in young children, who have thinner skin than adults. Also, a startling thermal shock – hot or cold – may cause a person to fall in the shower as he or she scrambles on the slippery surface to adjust the water temperature. The elderly and physically challenged are at particular risk.

Anti-scald valves mitigate this danger by maintaining water temperature at a safe level, even as pressures fluctuate in water supply lines. They look similar to ordinary shower and tub valves and are equipped with a special diaphragm or piston mechanism that immediately balances the pressure of the hot- and cold-water inputs, limiting one or the other to keep the temperature within a range of several degrees. As a side effect, the use of an anti-scald valve increases the amount of available hot water, as it is drawn more slowly from the water heater. Inspectors and homeowners may want to check with the authority having jurisdiction (AHJ) to see if these safety measures are required in new construction in their area.

Installation of anti-scald valves is typically simple and inexpensive. Most models are installed in the 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. They may be installed at the water heater to safeguard the plumbing for the whole building, or only at specific fixtures.

The actual temperature of the water that comes out of the fixture may be somewhat different than the target temperature set on the anti-scald valve. Such irregularities may be due to long, uninsulated plumbing lines or defects in the valve itself. Users may fine-tune the valve with a rotating mechanism that will allow the water to become hotter or colder, depending on which way it’s turned. Homeowners may contact an InterNACHI inspector or a qualified plumber if they have further questions or concerns.

In summary, anti-scald valves are used to reduce water temperature fluctuations that may otherwise inconvenience or harm unsuspecting building occupants.

Looking for an independent Connecticut Home Inspector? Contact Allied Home Inspections LLC - "Inspected Once, Inspected Right!" ​
Allied Home Inspections LLC
Bethel CT. 06801
Mon - Sat 8AM to 9PM
(203) 515-6622​
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Servicing Bethel, Bridgewater, Brookfield, Cheshire, Danbury, Easton, Fairfield, Hamden, Kent, Middlebury, Monroe, New Fairfield,  New Milford, Newtown, Norwalk, Oxford, Redding, Ridgefield, Roxbury, Seymour, Shelton, Sherman, Southbury, Stratford, Trumbull, Warren, Weston, Westport, and Wilton Connecticut
  • Home
  • Contact
  • About Me
  • Unbiased
  • References
  • Radon Testing
  • Water Testing
  • FAQ
  • Info and tips
    • Blog
    • 15 Tools Every Homeowner Should Own
    • 10 Ways To Save Energy
    • Abrasive Blasting for Mold Remediation
    • Acid Rain
    • Adjustable Steel Columns
    • Advantages of Solar Energy
    • Aging in Place
    • Aluminum Siding
    • Aluminum Wiring
    • Ants
    • Anti-Scald Valves
    • Arc-Fault Circuit Interrupters (AFCIs)
    • Asbestos
    • Asbestos in Vermiculite
    • Attic Pull-Down Ladders
    • Average Home Inspection Cost
    • Backdrafting
    • Backflow Prevention
    • Barbeque Safety
    • Basement Waterproofing
    • Bathroom Vents
    • Bats
    • Bed Bugs
    • Bethel Home Inspector - Allied Home Inspections LLC
    • Biological Pollutants
    • Brookfield Home Inspector - Allied Home Inspections LLC
    • Bug Zappers
    • Building a Home
    • Building Cavities Used as Supply or Return Ducts
    • Buying a Foreclosure
    • Carbon Monoxide
    • Carpeted Bathrooms
    • Central Humidifiers
    • Central Vacuum
    • Central Air-Conditioning Systems
    • Child-Proofing
    • Chinese Drywall
    • Clothing Moths
    • Collar Ties
    • Condensation in Double-Paned Windows
    • Crumbling Foundations in CT
    • Danbury Condo Inspector - Allied Home Inspections LLC
    • Danbury Home Inspector - Allied Home Inspections LLC
    • Electrical Conductor Types
    • Electric Heat and Condensation
    • Electrical Panels
    • EMFs in the Home
    • Energy Conservation
    • Energy-Efficient Houses
    • Engineered Wood Flooring
    • Exterior Design Features
    • Factory-Built Fireplaces
    • Fairfield Home Inspector - Allied Home Inspections LLC
    • FHA Loan Basics
    • Fire Safety
    • Foreclosures
    • Foreclosure Inspections
    • Formaldehyde
    • Foundation Insulation
    • Galvanic Corrosion
    • Galvanized Pipe
    • Garages
    • Garage Doors and Openers
    • Garage Fire Containment
    • GFCI's
    • Gutters
    • Home Inspection: An Overview
    • How To Choose a Home Inspector
    • Ice Dams
    • Infrared Inspections
    • Insulation
    • Internships for Home Inspectors in Connecticut
    • Knob and Tube
    • Links and Resources
    • Manufactured Homes
    • Newtown Home Inspector - Allied Home Inspections LLC
    • New Milford Home Inspector - Allied Home Inspections LLC
    • Oil Burners
    • Plumbing Terms
    • Ridgefield Home Inspector - Allied Home Inspections LLC
    • Roofing
    • Scope of a Home Inspection
    • Sealing / insulating
    • Septic
    • Siding and Insects
    • Stamford Water Contamination
    • Termites
    • Tips For Home Sellers
    • Tips On Finding A Home Inspector
    • Tips To Crush Your Home Inspection
    • Typical Inspection
    • Underground Oil Tanks
    • Vinyl Siding
    • Water Quality
    • Water Softeners
    • Water Softener Backwash
    • Water Wells