A mixing valve is a device used to avoid scalding yourself on a pipe attached to a boiler. It functions by mixing hot water with cold water so the external pipes are a safe temperature.
Automatic mixing valves come with a temperature sensing mechanism that detects when it is necessary to add cold water to the mix. They can be adjusted so the target temperature is as desired by the user.
Unlike automatic mixing valves, manual mixing valves do not come with a temperature sensing mechanism. Instead they come with gate valves that must be manually adjusted by the user. Typically, the valve is adjusted a few times a year as the seasons change. These are mostly found on older boilers.
On manual valves, twisting the mixing valve clockwise admits less cold water to the system, making the pipe hotter. Twisting the valve counterclockwise makes the temperature of the pipe colder.
How Does a Damper Work on an Oil Fired Furnace?
An oil-fired furnace is part of a forced-air heating system. This system burns oil in a combustion chamber to heat the air....
How to Adjust a Honeywell Thermostatic Mixing Valve
A thermostatic mixing valve regulates the temperature of the water in a hot water heater. It mixes the hot and cold water...
How to Replace a Fill Valve On a Hot Water Boiler
If you have a hot water boiler in your home, shop or garage, The boiler has one of these. Usually they fail...
How to Adjust the Temperature in a Shower Mixer Valve
The mixing valve of a shower is installed in order to mix cold water with hot water from the water heater installed...
How to Fix a Mixing Valve
A mixing valve is a key component in a faucet or shower; it combines hot and cold water to maintain steady water...
How to Install a Thermostatic Mixing Valve
The water temperature in a hot water heater needs be kept at approximately 140 degrees Fahrenheit to limit the potential of the...
How to Adjust a Taco Automatic Fill Valve
Taco makes a number of valves and control mechanisms for heating and cooling (HVAC) systems and applications. One such valve is the...
How to Adjust a Mixing Valve
The most common form of mixing valve found in the home is a shower mixing valve. This is the valve controlled by...