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Repair Heat Timer Varivents

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LoudonFrank
LoudonFrank Member Posts: 5
in Strictly Steam
Is it possible to repair Heat Timer Varivents? Is there some way to open them up and repair them?



Also, is there some way to test them? to see if they open and close as they should?



thanks



Frank

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  • Dave in QCA
    Dave in QCA Member Posts: 1,785
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    no repairs

    No way to repair them.  If they fail, throw them away.  Maybe, in the opinion of many, go to a different brand.

    To test them, you want to make sure they are open when cold.  You should be able to blow through it very easily.  To see if it will close, you just about have to apply steam to it.  When the steam gets to the vent, it should quickly close, no steam should blow through.  In my experience, right as they close, they will ge a little noisy, and might spit out a drop of condensate.
    Dave in Quad Cities, America
    Weil-McLain 680 with Riello 2-stage burner, December 2012. Firing rate=375MBH Low, 690MBH Hi.
    System = Early Dunham 2-pipe Vacuo-Vapor (inlet and outlet both at bottom of radiators) Traps are Dunham #2 rebuilt w. Barnes-Jones Cage Units, Dunham-Bush 1E, Mepco 1E, and Armstrong TS-2. All valves haveTunstall orifices sized at 8 oz.
    Current connected load EDR= 1,259 sq ft, Original system EDR = 2,100 sq ft Vaporstat, 13 oz cutout, 4 oz cutin - Temp. control Tekmar 279.
    http://grandviewdavenport.com
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