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anyone have an old water heater I can scavenge? - Doug Ayen's Blacksmithing Blog [entries|archive|friends|userinfo]
Doug Ayen

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anyone have an old water heater I can scavenge? [Jul. 26th, 2011|02:21 pm]
Doug Ayen
I need a better heat treat setup for longer items. The best . . . well, I can't afford a molten salt pot setup right now, nor am I completely happy with the prospect of dealing with a homebrewed setup involving lava-temperature salt, electric wiring, and my own welding. What I can afford would be a setup I've used at a local hammer-in.

Take a steel shell, they used an old water heater core with the galvanization stripped off (at least I hope they stripped it off before welding on it). Inside the shell was a layer of insulation, with a burner on the bottom, with an angle iron diffuser above the burner to even out the heat. The setup used a couple of thermocouples to measure the internal temperature, and was used to create an even, controlled heat. The temperature controller was a smith watching the thermocouple readings and adjusting the burner.

I have pretty much everything I'd need to make such a setup, except for the outer shell. I've looked into stainless ductwork (about $90 + shipping), and I could hit any of a number of local metal supply houses and see what they have in the way of 12" dia tubing, but free would be better. Anyone have an old water heater they're not using I could scavenge?
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Comments:
[User Picture]From: perspicuity
2011-07-26 07:31 pm (UTC)
old large style propane tank?

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[User Picture]From: blackanvil
2011-07-26 07:39 pm (UTC)
Yeah, that would work, and they're not all that old -- my 100lb tank would do fine, but a) I'm using it and b) new they're about $150.
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[User Picture]From: perspicuity
2011-07-26 07:42 pm (UTC)
by old, i meant one that someone discarded or perhaps failed inspection...

or that you found :) junkyard?

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[User Picture]From: blackanvil
2011-07-26 07:50 pm (UTC)
If there's a junkyard in a 100 mile radius of where I live that still allows browsing, I can't find it. Most just shove everything into cargo container and send them off to be recycled as soon as they can.
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[User Picture]From: five_hole
2011-07-28 09:37 pm (UTC)
I'm going to buy a replacement for our 50 gallon electric water heater in the next day or two. you're welcome to the old one once we replace it
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[User Picture]From: blackanvil
2011-08-01 07:25 pm (UTC)
I think I have a lead on a 40 gallon, but if yours is available, . . . hmm who are you IRL and where do you live, roughly?
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[User Picture]From: five_hole
2011-08-02 12:21 am (UTC)
It's Scott, and I'm in Sterling
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[User Picture]From: blackanvil
2011-08-12 02:07 pm (UTC)
Oh, cool. Hi there. Yeah, with the katana in progress, I'll probably need this in 3ish weeks (got a bunch of travel lined up or it would be sooner). I'll try to coordinate with Carl and we'll see if we can get this set up.
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