Blow Torch Aluminium Welding

[Zorr]

I am not sure whether it is the right place to ask this question but anyway I have few aluminium garden chairs which cracked on the welds where sitting part meets back support.

Was thinking to try to weld them myself since this will cost nearly nothing

Bought some of those http://www.ebay.co.uk/itm/Aluminium...495?pt=LH_DefaultDomain_3&hash=item564b4b586f

Unfortunately it seems that my current blow torch gives too low temp (maybe the flame is not focused enough) the rods do not melt at all. I started to browse ebay for some other blow torch. Most of the good ones costs 70 quid + but I found below one:

http://www.ebay.co.uk/itm/150951081573?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649
http://www.triggerflame.co.uk/

Seems OK but my question is where can I get suitable gas canister for it ? I asked the seller for the cartridge type but no answer thus maybe anyone here will have an idea ?

Any help appreciated.

 

[Dan519]

I tried it and had the exact same issue. I never bothered to try Mapp gas but they sell it in B&Q, although it's twice the price of propane/butane canisters

 

[Thrust-Rated]

Go to a local plumbers merchants. B & Q charge a fortune for the gas. MAPP gas burns really well and hot. We use it at work when soldering 35mm and bigger fittings.

 

[MG cup]

Your pi**ing in the wind without oxygen n accetalene bottles and a proper welding nozzle if its for anything half structural really.