Buying a Propane Torch

[IanTParticipant @iant]

Posted by Andy Carlson on 29/10/2019 17:36:07:

If I'm understanding correctly the consensus seems to be that the Bullfinch can reach higher temperatures (presumably on a smaller target area) so it can do brazing but the Sievert has more nozzle options and can heat a wider target area, albeit to a lower temperature.

Right?

Basically Yes Andy.

Jason's painting analogy is interesting – but you wouldn't use a ceiling roller to paint a window frame either, you'd probably find a 1/2" paint brush easier. I already have a number of small loco boilers and may build another one (maybe two at most) going forward. I do all manner of other small brazing and soldering jobs quite routinely though. So my old Sievert look-alike doesn't get used that often but certainly has it's uses. However, I could probably build a small boiler using the Bullfinch and I might be able to bronze braze with the Sievert-type too but neither would be ideal I suspect…

To avoid any further confusion, this is the Bullfinch Autotorch system I have (and it's technical specification) can be found here;

https://bullfinch-gas.co.uk/blowtorches/autotorch-brazing-sys

They are quite expensive but Hamilton (where I purchased mine) have them here;

https://gasproducts.co.uk/gas-blow-torches/bullfinch-gas-blow-torches/bullfinch-404-autotorch-brazing-gas-blow-torch-kit.html

Regards,

IanT

[Author]

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