generating to much heat

[Harbourwoodwork]

Soldering has become much harder, normally doing 15mm and 22mm Yorkshire fittings around the house has gone fine. suddenly things have got a little harder, connecting 35mm straight connector to 35-28mm reducer to 28mm straight connector with 15mm T to 28mm 90 then another very close. The whole lot crammed together in about 250mm all with end feed fittings. Grown up soldering! My attempt was not a pretty sight. Things got very hot and nasty with burnt flux and the joints wouldn't run.. I changed the gas on my blow torch for map gas bloody hell that go hot! I have pulled it out and I'll have another crack at it tomorrow. I am now in post disaster trauma and have had to go into severe Boddington therapy. Are there any plumbers out there that can give me clue. I promise never to say anything bad about plumbers again. A frustrated chippy.

 

[shorky]

if your soldering 28mm or above, forget a rothengerger type torch if thats what your using, you will need a bigger flame on it for that size, solder wont run properly as you wont get the heat even around that size of fitting

 

[Dan Robinson]

I manage up to 54mm with a Rothy....

Untitled

• Dan Robinson
• 18 Dec 2011
• 2

 

[sooey]

Pity you can't manage a heatmat yer bastid.


Couldn't resist that dan, don't hit me.

 

[Dan Robinson]

That was supposed to be a totally flat rig with plenty of space in between for installation pipes. Pre-built it and took it to site (off drawings) and the builder said, without skipping a breath, "hope you don't mind, we've made the boiler cupboard 450mm narrower".

Git had to adjust the thing in situ....

 

[sooey]

Builders eh

I hope you said..."I hope you don't mind, I'll be billing you an extra two hundred quid"

 

[Dan Robinson]

Nah, he's one of the good un's... but I do get the odd ribbing over scorch marks now though .

Made a real effort on the last one.... But then the git added an extra room to the UFH and now I have to wire up another damn manifold to my S-Plan ++++.... Think I need another wiring centre .

Pays "normal" rates, so shouldn't complain too much.

 

[gasbanni]

Mounted on plywood !!!!!

 

[Dan Robinson]

Perfectly fine according to the destructions - and I didn't know there was going to be plasterboard on the studs

 

[DP]

Mounted on plywood !!!!! icon_eek.gif icon_lol.gif

Never had a problem with that, and that is with maker's blessings (not the man in the sky )

Exterior ply and screws give good fixings. Have done that by fixing 3?4" ply to wall with no nails and fixings.

Nice pipework Dan

 

[Dan Robinson]

Cheers Danny .

Mounted an SB30 on Ply today as it happens - albeit with 10mm on concrete render on it too

Another Keston in the skip... how many more left now?

 

[Nige F]

Soldering has become much harder, normally doing 15mm and 22mm Yorkshire fittings around the house has gone fine. . Are there any plumbers out there that can give me clue. I promise never to say anything bad about plumbers again. A frustrated chippy.

You definitely need a heat mat If it`s all in situ because you need to get the flame all around the fitting and you want butane not mapp gas - you want a lower heat and not concentrated in one spot , like you can get away with on smaller pipe/fittings . Also lead solder will flow better than lead free ( it`s a pain even on small fittings ) I find La Co flux is good too