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4 inch bubbler

PostPosted: Wed Mar 25, 2020 8:38 am
by Dave017
Hi all I am keen on starting a 4 inch bubbler build but reading through these forums I am wondering without an oxy acetylene kit is this possible? I have mapp gas but doing 4 inch I read that it won't get the heat into it. So am I biting off more than I can chew?
Thanks

Re: 4 inch bubbler

PostPosted: Wed Mar 25, 2020 9:35 am
by Birdman85
Ive looking at doing the same thing but am having a world of trouble sourcing the 4" and 2" tube (without paying an arm and a leg).

From the builds I've read people use the mapp torches but some preheat the parts in their BBQs to speed the heating process. Mapp would definitely do it, just take a tad more time.

Re: 4 inch bubbler

PostPosted: Wed Mar 25, 2020 12:09 pm
by The Stig
Just buy the Tee sections from 5 Star :handgestures-thumbupleft:
Daddy needs to pay the rates :obscene-birdiedoublered:

Re: 4 inch bubbler

PostPosted: Wed Mar 25, 2020 12:35 pm
by Birdman85
The Stig wrote:Just buy the Tee sections from 5 Star :handgestures-thumbupleft:
Daddy needs to pay the rates :obscene-birdiedoublered:


I'll buy the whole thing off you if you chuck in free shipping and a take a little off the top :teasing-tease: :laughing-rolling:

Re: 4 inch bubbler

PostPosted: Wed Mar 25, 2020 7:24 pm
by db1979
I built mine with nothing but propane and a mini torch. Mapp is hotter than propane. I've since got my hands on a couple of trade quality torches that'll make the next build super easy.

Propane is possible on 4", you've just got gotta be reeeeaaaally patient. One bottle of propane was more than enough for a bubbler, and I soldered my plates in, which took a lot of gas. If I can do it with propane, you can do it with mapp.

Re: 4 inch bubbler

PostPosted: Wed Mar 25, 2020 7:26 pm
by db1979
Something like this, only different brand.
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Re: 4 inch bubbler

PostPosted: Wed Mar 25, 2020 7:31 pm
by bluc
You can get a kit to attach to a lpg bbq.bottle(use a reg) and a full flame tip you can hard solder on 4". And have heaps cheaper gas then the little torchs :handgestures-thumbupleft:

Re: 4 inch bubbler

PostPosted: Wed Mar 25, 2020 7:35 pm
by The Stig
Birdman85 wrote:
The Stig wrote:Just buy the Tee sections from 5 Star :handgestures-thumbupleft:
Daddy needs to pay the rates :obscene-birdiedoublered:


I'll buy the whole thing off you if you chuck in free shipping and a take a little off the top :teasing-tease: :laughing-rolling:

Call me :handgestures-thumbupleft:
Or was that you this afternoon :clap:

Re: 4 inch bubbler

PostPosted: Thu Mar 26, 2020 7:46 am
by Dave017
thanks for the replies and ideas
cheers all

Re: 4 inch bubbler

PostPosted: Thu Mar 26, 2020 7:33 pm
by scythe
I bought a braided adaptor hose that lets me connect my BOM torch to a POL log bottle.
Works well so far, made a blanking plate, put a flange on my RC and touched up the solder around the tubes for about an hour last night.
Using a 12mm pencil flame tip and soft solder, hard solder / brazing rod is beyond this set up.