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Old Hydrotherm problem

joe_130
joe_130 Member Posts: 11
recently i was working on an old hydrotheerm boiler and the original problem was that it was leaking gas.  It was a  hot water, nat. gas fired boiler with a power pile generator.  After turning the gas on to the house i saw that that pilot cock was still on (with the pilot out) and still pouring gas into the boiler even though the pilot was out.  I wasnt happy with this setup at all because the tapping for the pilot cock was before the main shutoff on the boiler, also there was no controlling the pilot (besides the pilot cock) so if it blew out for any reason (like it did) you would have the same problem of leaking gas.  I changed out the powerpile and re lit the pilot.  My question is that is this an unsafe or unpractical setup, because i think it is.

Comments

  • Tim McElwain
    Tim McElwain Member Posts: 4,445
    Many older systems

    years ago had and A gas cock and a B cock for the pilot. The tubing went from the B cock directly to the pilot. We called it a constant pilot,or an non 100% shutoff or sometimes a wild pilot. It was not a problem on natural gas as it is lighter than air and would rise and go up the flue. There were thousands of these systems around.



    If it is a concern you can install a VS820 Combination Honeywell Powerpile valve and connect the pilot tubing to the gas valve making it a 100% shut of.
  • joe_130
    joe_130 Member Posts: 11
    thanks

    alot for that info Tim, and i'll do just that
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