Zone valves on backwards


Old 10-18-18, 07:36 AM
Thread Starter
Join Date: Sep 2004
Location: New York
Posts: 509
Received 0 Votes on 0 Posts
Zone valves on backwards

My son bought a house a few years ago and always complained about going through a lot of propane during the winter. I went over to check it out and found that his zone valves are all on backwards, would this give him poor water restriction causing him to use more propane to heat his home? He has 6 zones and using Auto Mag zone valves..
Sponsored Links
Old 10-18-18, 09:47 AM
Join Date: Oct 2013
Location: United States
Posts: 2,807
Received 27 Votes on 26 Posts
Zone valves are unidirectional allowing the water to flow in only 1 direction. There is an arrow on the body of zone valves indicating the way they are to be installed and the direction of the flow.

If installed backwards the water cannot flow pass the ZV to the emitters and there will be no heat delivered.

The valves installed the wrong way would cause more fuel to be used because of the fact that the hot water could never get to the baseboard so the stats would never be satisfied and continue to call for the boiler to operate.

The boiler would run to high limit and shut off and when the boiler temp cooled naturally it would come back on and just keep cycling as long as the stats called providing no heat to the house.

Hope this helps a little

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Ask a Question
Question Title:
Your question will be posted in: