| Mark Donovan of HomeAdditionPlus.com discusses hydronic zone
valves, including their purpose in home heating systems, and how to determine if they are working
properly in this video.
A hydronic zone valve works in conjunction with the hot water boiler, thermostat, and
circulator pump to provide heat to your home.
Mark discusses the effects of a hydronic zone valve failing in a
"stuck-open-Position" and in a "stuck-closed-position".
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Hydronic Zone Valves from Amazon.com
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