(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 3 of 3

Thread: need to purge a furnace gas line?

  1. #1

    Question need to purge a furnace gas line?

    I need to relocate my propane gas home furnace by approx. 19" and will need to disconnect the gas line and install a longer line. Once this is complete do I need to purge the gas line in order for the furnace to be able to light? This is a newer philco furnace with a honeywell valve. If I need to purge the line how and where is this done?

  2. #2
    Retired Defense Industry Engineer jadnashua's Avatar
    Join Date
    Sep 2004
    New England


    It may take a couple of tries to light it, but eventually it should get the gas there to light. Does it have a pilot light? Just get a lighter and hold it there until the pilot lights. A match may not last long enough!
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  3. #3
    Plumber jimbo's Avatar
    Join Date
    Aug 2004
    San Diego


    The line is under gas pressure, so as soon as a pilot or valve is opened, it will start purging out the air. If this is an igniter type gas control, it will take several tries. This is why the circuit is designed to repeat start tries.


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts