You could try welding blankets strategically set up as windbreaks.

In high winds I'd postpone to another day.

I also am worried about large propane or acetylene burners inside. I keep them outdoors in a vented shed away from the house.

I wait for a quiet day, put the blocks and so forth up in our backyard, and go for it! In the winter, if you drop a warm/hot part, you'll not find it until spring. This was taken a few years ago, but snow is here about 1/3 of the year.  (Today the yard still has snow, a bit anyway)

Edited By John Alexander Stewart on 06/04/2022 01:42:18

Like Andrew, Bill and Thor I silver solder outside because the garage and ajoining workshop contain too many inflamables. I save the jobs up for a dry windless day and study the seven day weather forecast closely (it is pretty accurate).

I think propane cylinders should be stored outside.

JA

Hi Phil,

If the problem is as you say"the burner is too big" why not use a smaller and more controllable flame?

Do you need 43kw?

Turn the regulator down from 4 bar to 2 bar the to reduce the gas consumption and heat output down to 23kw.

Alternatively buy a smaller burner eg 2941. That will give you 7kw at 2 bar rising to 14 kw at 4 bar.

Either way you will achieve more controlled heating and that means better quality of joint. You will find that you are also more comfortable. Remember that you are brazing and that requires controlled heating for the best results. It is not all about blasting heat at something. Leave that approach to the folks painting lines on the road!

Keith

You can buy the bricks shown in JAS's post quite cheaply in bulk on Ebay so you can build a hearth with higher sides and sometimes with a bit of a roof if you need to using metal brackets and 1 inch screws from the big box DIY stores.

Don't forget big burners need the bigger bottle (13kg minimum) to feed gas at the full rate.

I think most of us are bright enough to pick a safe area inside to braze, but please remember to look up as well as turning a light fitting or the garage door opener into a misshapen blob is both annoying and sometimes expensive.

Hi

Fire blanket is a good idea. I bought a cheap BBQ as a base plus firebricks from old school kiln.

It really helps to do it outside at NIGHT ……… cos you can see the colour of the metal