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gas pipe size for stove

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  1. #1
    Apprentice (new member)
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    Apr 2020
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    Regional NSW
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    Default gas pipe size for stove

    Hi,

    I got a kitchen reno i'm planning. The missus wants to toss the 60cm 4 burner NG freestanding stove and replace it with a 90cm 5 burner unit. There is currently a 1/2" supply line to the stove and I'm just wondering if it should be upgraded to a 3/4" line. The stove says it has a maximum output of 53.6MJ/h on all burners, but no way they all get used at the same time. It doesn't look like there will be a problem feeding it from the 1/2" line from some pipe sizing charts i have seen online, but i just though i'd see what more educated people thought before i call a plumber and wait 2 months

    Cheers

  2. #2
    Gramps
    Join Date
    Jun 2014
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    Adelaide
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    93

    Default

    1/2” will be fine
    G

  3. #3
    Apprentice (new member)
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    Apr 2020
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    Regional NSW
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    Default

    Thanks very much. i figured it would be, but having a second opinion helps.

  4. #4
    1K Club Member
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    s.e. melb
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    Default

    Depends on what other appliances you have. 53 megs is on the larger size for a cooker. Your gasfitter needs to size the line for compliance.
    Love it when DIYERS pin the blame on plumbers for their own shoddy work

  5. #5
    4K Club Member
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    Default

    No one asked or specified how long the 1/2 inch supply pipe is. That might be relevant in a mains gas system with the regulator at the meter end of a long pipe.
    Before you speak, ask yourself: Is it necessary, it is true, does it improve on the silence? - Baba

  6. #6
    4K Club Member
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    nsw
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    Default

    I've got a lpg 5 burner hob and a 900 gas oven running off a 1/2" line and it supplies both with no problems at all
    inter

  7. #7
    Apprentice (new member)
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    Apr 2020
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    Regional NSW
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    Default

    For a bit extra info, the other connected appliances are a 20l continuious hottie and a gas heater. When i got the hottie installed i got the pipe through to that upgraded to 3/4" so i basically have a 3/4" pipe running from the meter straight through to the hot water at the back of the house. off that i got 1/2" branch running to the stove and a 1/2" running to the heater. The 1/2" pipe running to the stove is about 4-5m.

    Got no probs calling a plumber in to upgrade it. The main issue is waiting for them to actually come and do it. Got more chance of finding dinosaur bones in the back yard than a plumber. But at the same time, i'd rather get it done than find out i should have done it after the fact. I think you guys have put enough doubt in my mind that i should probably just bite the bullet and go hunting for someone to do it

  8. #8
    4K Club Member
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    IMO no problems with 1/2" for the setup you described; 3/4 would merely help pay for your plumber's next os holiday/house/boat/off-road van with no benefit to yourself.
    Before you speak, ask yourself: Is it necessary, it is true, does it improve on the silence? - Baba

  9. #9
    Apprentice (new member)
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    Apr 2020
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    Regional NSW
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    Default

    Yeah. i tend to shy away from working 4 hours to pay a tradie for 1, which is why i asked in the first place. Did some more digging and found the manual for the current stove. it's 49Mj/h. so the new one isn't really much of a jump.

    Called a couple of plumbers anyway and no one is even going to look at it for a month and a wife that wanted it done yesterday and if you met my wife, you'd know life's easier when she's happy.

    Thanks all for the help

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