Well I made a start today on the Heater.
I cut up the tank and welded the air feed chimney in.
OK Its a propane tank, and I am aware of the safety aspect.
First let me say this has sat with the Valve removed for nearly a year. Its sat upside down and als right way up incase propane is or is not heavier than air.
Its been regularly flushed with compressed air, and after nearly a year I set about cutting it up.
So far I have cut the Door in the bottom so I an fix the burner head in and also see where the air feed comes to.

This is my first serious attempt at TIG welding. The Rehmann 200 come off Ebay and seems to work OK. Its certainly easier and better than my old SIP 150 Mig.

OK the welding isnt perfect, but I am open to comments so I can improve.
The Pipe is 4mm steel and the tank is about 2mm, so there is a little difference in the ticknesses. I aimed the torch slightly towards the pipe so I put more heat into the thicker metal and not to blow away the thinner tank metal.

Used about 120 Amps witha 2.4mm Red tungsten and 1.6mm mild steel filler rod.
Also there was a small gap upto about 1mm between the pipe and the tank, as mu cuttin out want that good.
I wonder if I should have got a bigger tungsten as it was red hot and so was the ceramic cup (at times)
Oh and about 10lpm of gas.

I'm also having problems as this site wouldnt let me archive thes pics saying they are the wrong format. They are JPG's and I already have loads on here. Any Ideas?.


Now Edited the pics.. they were like Huge filesize wise... now just a 110k or so.
Geoff

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[Edited on 25/11/2007 by wilkingj]

i think you wont be able to load the photos onto this site because your photos are the size of the earths moon, you could try making them a tad smaller.

Hi i would like to make a heater like that so please keep the photos and info coming
Jacko

Geoff, The pics are humungously large at 1536 x 2048 pixels - might be an idea to reduce them a bit

[Edited on 24/11/07 by thunderace]

For that kind of job I would get some rods and use as a stick welder, save the gas for jobs that need tig. Is it going to be for old engine oil? Here's a link from my bookmarks to a site I was reading .

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Originally posted by Peteff
For that kind of job I would get some rods and use as a stick welder, save the gas for jobs that need tig. Is it going to be for old engine oil? Here's a link from my bookmarks to a site I was reading .

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Geoff, how about fitting a fan so that it blows air around the burner ? A radiator cooling fan perhaps? Our commercial waste oil heater works with a fan although it's thermostatically controlled.

quote:

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Originally posted by rusty nuts
Geoff, how about fitting a fan so that it blows air around the burner ? A radiator cooling fan perhaps? Our commercial waste oil heater works with a fan although it's thermostatically controlled.

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You're getting towards the limit of the capacity of most gas cooled torches at 120 amps, you really need water cooled for much more than that, so yes, the ceramic will glow.

As Pete said, get the sticks out for that sort of job really, bit agricultural for the tig, but as you say, if you want the practise then you ight as well try it!

Nice effort with your new Tig mate. As usuall Petef is on the ball.........save the gas and stick it. Try to get the welds as good as the seams on the Calor bottle.

Alex