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  1. #1
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    Default What Connector For This Gas Hob? Technika H640STXFPRO

    Got this Technika gas hob from a friend and it came without the fittings.

    I thought it needed an elbow as the first thing to screw in and I asked Technika.

    They just gave me a link to a parts list and left it up to me. I got what I thought must be it but when it arrived today I find it doesn't fit. Too big.

    And I was dumb anyway. Being an elbow there's not enough room available to turn it around and screw in - the 'elbow' offset won't allow it. All that could screw in would be a straight pipe.

    I'm not even sure there's a thread inside it anyway.

    The outside dia of the elbow is 200mm and the ID is about 13mm, 1/2" I suppose.
    The inside dia of the pipe in the hob is 13mm. So there's no way it would screw in.

    In fact they seem to be using imperial. The elbow they've sent me is marked '1/2"' I notice.

    So can someone help me with advice as to how to connect this thing to a gas bottle?

    IMG_20220205_102248.jpgIMG_20220205_102256.jpg

  2. #2
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    Default

    The spec sheet for your hob is here https://collection.technika.com.au/m...cument-101.pdf

    The installation instructions are here https://collection.technika.com.au/m...al20201218.pdf
    see page 14 and following.

    Important to note the lateral and vertical clearance requirements to combustible material -- e.g. wooden or laminated bench tops and overhead range hoods.
    Also, is the hob designed for Natural gas or LPG -- the instructions cover what to do if your gas type is wrong.

    As far as I can tell, the gas connection uses a short straight pipe (which may or may not be threaded where it enters the hob -- check for threads inside the hob) with a captured manifold nut, a loose gasket washer and then an elbow threaded on both ends. The specified thread size is 1/2" BSW.

    This is one of those instances where thread size is important.
    regards from Alberta, Canada

    ian

  3. #3
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    Apr 2009
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    sa
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    Default

    That's very good. Thank you for that.

    As it happens I have that document. The trouble is it fails to specify so's I can understand just what fitting I need.

    It says on page 13 "Installation" that it can be connected by
    A. rigid pipe according to AS5601 table 3.1
    or
    B Flexible hose complying with AS/NZS 1869 10mm ID classs B or D according with AS5601.

    I tried to track all that down but ran into a paywall and I baulked at buying it until I'd checked everything else and found it necessary.

    seemed to me it shouldn't be necessary simply to identify the bit of hardware needed to hook up a common consumer appliance.

    So, as I said, I contacted the supplier himself and got this useless elbow.

    And then came here. Perhaps I'll yet find someone here who's installed these things and knows what we need.

    Hopefully.

  4. #4
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    ask the friend who gave you the hob if they have the fittings that were supplied with either:
    the hob you have, or, assuming your friend replaced the hob they gave you with a new one,
    the fittings supplied with the replacement hob.

    It would not be unusual to leave the original fittings on the gas line and throw the unused fittings into a spare parts drawer.
    regards from Alberta, Canada

    ian

  5. #5
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    Apr 2009
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    sa
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    Default

    trying but not having any luck. and can't really expect it. we bought oven and all online. went to pick up and he'd had an accident - dropped the oven off the trolley, smashed it to bits, not worth fixing. So he just gave us the hob because it was undamaged and separate.
    They were moving house.
    I've facebook messaged. No replies. I'd imagine he junked everything. I would have in that situation.

  6. #6
    Join Date
    Jun 2013
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    Geelong
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    Default

    From the photo you have put up I am thinking they have cut the manifold with a hacksaw thus rendering the hob next to useless. That bare pipe should have a captive nut which would fit the elbow you have purchased. As a side if the hob is not clearly marked LPG/Propane/Natural for the gas type then you may waste more time getting this thing working.
    You can pick them up new for$200 on eBay and$300 in stores.
    Hate to see you waste your time on a “free” one only for it to potentially burn down your shed.
    cheers

  7. #7
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  8. #8
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    Default

    Quote Originally Posted by abrogard View Post
    seemed to me it shouldn't be necessary simply to identify the bit of hardware needed to hook up a common consumer appliance.

    So, as I said, I contacted the supplier himself and got this useless elbow.
    You do know that if you DIY install the gas hob -- your insurance (and any insurance carried by a tenant) won't cover you in the event there is a kitchen fire?
    Gas appliances are to be installed by licenced persons for a reason.

    see what Franklin posted.
    regards from Alberta, Canada

    ian

  9. #9
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    Default

    Thanks for this. Provided the inspiration I needed. There's no way it was hacksawed. No signs and you couldn't get a hacksaw in there anyway. The thing was totally new though. Never installed.

    So I took another look and this time picked the thing up and shook it and - boingggg - the nut slid out from the dark.

    I was reluctant to shake it about before because all the burner bits fall off all over the place.

    Did it this time and there it is. My inexperience and general stupidity again.

    So now I"ve got the elbow on. You beaut.

    What next? Check the gas thing: NG or U-LP ?

    There's pages at the end of the manual talk about conversion kits. No mention of how to check what you've got. Unless we go by Model number. Perhaps the H640STXFPRO-3LPG is the LP version?

    Ah: took a look underneath. Great big red sign: 'Only for use with Universal LPG' so that's that settled.

    So that's bottled gas isn't it?

    This puts it in the same category as a home BBQ. Screw in the bottle. Every time you need a new bottle you have to do it yourself again.

    Except we seem to need an adapter. The male thread of the elbow on the stove is about 22mm while the female on the gas regulator from the bottle is about 11mm

    Know anything about that?

    The electricity is a three pin plug. Just plug it in.

    It has instructions for how to mount it on a benchtop, 'drop in'. I don't plan to do that. I plan to build a topless box to sit it on, about 100mm high and it can all sit on the benchtop.

  10. #10
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    The fact you need to ask the questions you have should be a red flag that apart from the legalities of what you are doing it is outside your scope of DIY expertise.
    Not trying to be rude or disrespectful but you are potentially exposing yourself and those around you to a life threatening situation all for the sake of saving a couple of hundred bucks.

  11. #11
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    Default

    Quote Originally Posted by Beardy View Post
    The fact you need to ask the questions you have should be a red flag that apart from the legalities of what you are doing it is outside your scope of DIY expertise.
    Not trying to be rude or disrespectful but you are potentially exposing yourself and those around you to a life threatening situation all for the sake of saving a couple of hundred bucks.

    Agreed.

    You may find fittings that fit but do not actually seal properly. The result may be a life threatening fire. Gas leaks are dangerous.

  12. #12
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    melbourne australia
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    Leak check? I mean, you're supposed to do one every time you swap an LPG bottle.

  13. #13
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    Default

    Note well from 1:25

    Franklin

  14. #14
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    Default

    Quote Originally Posted by abrogard View Post
    Thanks for this. Provided the inspiration I needed. There's no way it was hacksawed. No signs and you couldn't get a hacksaw in there anyway. The thing was totally new though. Never installed.

    So I took another look and this time picked the thing up and shook it and - boingggg - the nut slid out from the dark.


    What next? Check the gas thing: NG or U-LP ?

    Ah: took a look underneath. Great big red sign: 'Only for use with Universal LPG' so that's that settled.

    So that's bottled gas isn't it?

    This puts it in the same category as a home BBQ. Screw in the bottle. Every time you need a new bottle you have to do it yourself again.

    Except we seem to need an adapter. The male thread of the elbow on the stove is about 22mm while the female on the gas regulator from the bottle is about 11mm

    Know anything about that?
    Perhaps your first post -- Flexible hose complying with AS/NZS 1869 10mm ID classs B or D according with AS5601 -- is what you need to consult.


    Note that bottled gas is intended to be used outside -- not in an enclosed space like a workshop
    regards from Alberta, Canada

    ian

  15. #15
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    I am intending to use it the same way it seems to be used to fuel the house kitchen. I'm expecting to have the bottle on the outside of the shed and the cooktop on the inside.
    And this is an oven cooktop, minus the oven. Was always intended for indoor use.

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