moved gas stove... now it won't work???

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by Randyj, Sep 10, 2012.

  1. Randyj

    Randyj Master Plumber

    Messages:
    1,047
    Location:
    Alabama
    Hopefully we've got someone here who is familiar with gas appliances. We have LPG (propane) for cooking & heat. I bought a new stove to replace the old not so good looking one in the house. The old one I moved to the guest house. In order to plumb the LPG to the guest house I put a Tee and valve at the tank and ran 1/2" black iron pipe 50 ft. to the appliance where I put another shut off valve. There is otherwise absolutely nothing different about this stove or the installation than in the main house. I've got plenty of gas pressure (no way to check pressure but know it's as good or better than in the main house). When I turn the gas on the pressure reducer (regulator) on the stove shuts off the gas.... completely... and the stove will not light. I've removed the line from the regulator to the burner and when I turn the gas on can hear it rushing through the regulator then shut it completely off so that it won't even produce bubbles when checked with soapy water. Would I be correct to assume this is a problem caused by a malfunction of the regulator????

    I did nothing to the stove other than move it from the house on one side of the drive way to the one on the other side... maybe 75 ft. No accidents, no unusual banging around, nothing obvious that might cause damage.
  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    22,129
    Location:
    New England
    Did you put your T before or after the main regulator on the tank? It must be after.
  3. Randyj

    Randyj Master Plumber

    Messages:
    1,047
    Location:
    Alabama
    Of course it's after the main regulator on the tank. The other side of the tee runs gas to the main house and everything there works perfectly as before. To me... logic tells me that for some reason it may be getting too much pressure but then I don't know much about how gas regulators act/react.
  4. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    22,129
    Location:
    New England
    On occasion, even the supposedly obvious doesn't compute, so it doesn't hurt to ask.
  5. kreemoweet

    kreemoweet New Member

    Messages:
    371
    Location:
    Seattle. WA
    Try restricting the flow to the new stove by throttling one of the shut-off valves?
  6. Randyj

    Randyj Master Plumber

    Messages:
    1,047
    Location:
    Alabama
    I tried that and it did seem to help at least slow down the time it takes the regulator to shut the gas off. I'm kind of leaning toward thinking the house may have another regulator underneath it since the line from the tank also supplies gas to a heat pump and both lines coming off of the tank are the same size (1/2" soft copper) for at least 10 ft. Being somewhat of an extreme handy man myself I'd hate to stoop down to it but may just have to call the gas company to figure this one out.... that would really take the fun out of everything....
    Last edited: Sep 10, 2012
  7. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,815
    Location:
    Cave Creek, Arizona
    There are often TWO regulators on the system, an intermediate one at the tank and a low pressure one at the house. You have connected to the intermediate one and its "high" pressure locks the appliance regulator. IF you operated the stove without the appliance regulator, you might have flames up to the ceiling. As an aside, black steel pipe is the absolute worse material you could have used for a buried gas pipe. It is not approved by any plumbing or gas code and would have been immediately rejected if you had gotten an inspection.
    Last edited: Sep 11, 2012
  8. Randyj

    Randyj Master Plumber

    Messages:
    1,047
    Location:
    Alabama
    Thanks... the high pressure is exactly what I suspected. As for the iron pipe... thanks again, learn something new every day tho' I definitely have seen miles of it... and it doesn't get damaged as bad when somebody hits it with a shovel digging in their yard. Pros & cons on everything... My experience with copper is that it gets pin holes in it after a while unless it is sheathed.
Similar Threads: moved stove
Forum Title Date
Plumbing Forum, Professional & DIY Advice Can this 1/2" copper line be moved? Jun 4, 2014
Plumbing Forum, Professional & DIY Advice Does shower faucet stem packing nut need to be removed before removing the stem ? Dec 27, 2012
Plumbing Forum, Professional & DIY Advice Can tub diverter valve be removed? (two tap style) Oct 27, 2012
Plumbing Forum, Professional & DIY Advice Faucet was loose and moved a bit...Are my compression fittings OK? Aug 24, 2012
Plumbing Forum, Professional & DIY Advice aav needs to be lowered or moved to fit sink Apr 7, 2012

Share This Page