Originally Posted By: kluce
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I came upon this today at an inspection. I found it interesting and thought you might to.
http://www.nachi.org/bbsystem/usrimages/hiui.jpg
I came upon this today at an inspection. I found it interesting and thought you might to.
http://www.nachi.org/bbsystem/usrimages/hiui.jpg
Originally Posted By: ecrofutt
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An old bathtub with an air admittance valve (AAV) for venting the drain.
Though people usually build a cabinet to hide this stuff.
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Erby Crofutt
B4U Close Home Inspections
Georgetown, Kentucky
www.b4uclose.com
Originally Posted By: hgordon
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Cool…antique!
Originally Posted By: ecrofutt
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Antique Electric Water Heater? (still providing good hot water)
LoMart Brand
Serial Number R2 LR08478 (as best I can read it)
30 gallons
Square washing machine sized cabinet with a round metal tank in it. Note the presssure relieve valve.
http://www.nachi.org/bbsystem/usrimages/DSC08168.JPG
ID Tag:
http://www.nachi.org/bbsystem/usrimages/DSC08175.JPG
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Erby Crofutt
B4U Close Home Inspections
Georgetown, Kentucky
www.b4uclose.com
Originally Posted By: kmcmahon
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Wow…interesting stuff!!
–
Wisconsin Home Inspection, ABC Home Inspection LLC
Search the directory for a Wisconsin Home Inspector
Originally Posted By: Lew Lewis
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The knob on top of the shaft operates the drain stopper. They weren’t thinking of AAV way back then.
Neal
Originally Posted By: jpeck
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This is from an old house in Miami.
First, though, a brief background on those old water heaters. The water heaters were installed in the attic, in a fake chimney (or next to a real chimney in a large fake chimney enclosure). A metal chimney cap flashing was installed over the water heater and chimney.
This was the second generation solar water heater. There was no electric, gas, or anything to those water heaters. They would just heat up in the sun and provide enough hot water for limited use 'way-back-then'.
I say "second generation" solar water heaters because the first generation solar water heaters were just water tanks mounted on the roofs, painted black, so they would get hotter faster. The second generation solar water heater was actually enclosed in the structure.
This device is from one of the second generation solar water heaters, and was an attempt to provide hot water on non-sunny days (what are they?  ). I guess you could call this a 'booster heater'.
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Jerry Peck
South Florida
Originally Posted By: tgardner
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I made one of those to make steam for a steam box to bend wood. Mine was a little more crude. – I put a sight glass on it to sight the water level and had no valve on the outlet to prevent pressure buildup. Worked like a charm.
tg
Originally Posted By: jmyers
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Neal,
Drain stopper! You are giving away your age with that kind of response! 
Joe Myers
Originally Posted By: jmyers
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Erby,
They still make those too, typically marketed as a compact unit!
Joe Myers