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Re: Nee photograph of
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Forum Ambassador
 
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This popped up on the AACA For Sale Forum a couple of days ago. Don't know if it would suit your application,
Posted on: 2021/3/14 0:27
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Mal
/o[]o\ ====  Bowral, Southern Highlands of NSW, Australia "Out of chaos comes order" - Nietzsche. 1938 Eight Touring Sedan - SOLD 1941 One-Twenty Club Coupe - SOLD 1948 Super Eight Limo, chassis RHD - SOLD 1950 Eight Touring Sedan - SOLD What's this?  Put your Packard in the Packard Vehicle Registry! Here's how! Any questions - PM or email me at ozstatman@gmail.com |
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Re: Nee photograph of
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Forum Ambassador
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Bob, you'll find the attached old article of mine relevant to your inquiry, and I've learned a bit more about the Kelch units in the subsequent years.
My 1934 Packard has the remains of a factory Kelch installation, I've had it since the 1960s and have been looking unsuccessfully for a replacement heat exchanger for all those years, to my knowledge it has never been available as a reproduction part. As permanent antifreeze with it's higher boiling point and cylinder head thermostats came into use, dealers were more than willing to offer replacement hot water heaters. I later learned that the exchanger tubes which were in actual contact with the exhaust gases were made of monel or stainless. Kelch heaters were also used in Cadillac, Pierce Arrow, Duesenberg, and other high end cars. Attach file:  KELCHP~1 .jpg (213.81 KB) KELCHP~2.JPG (175.35 KB) KELCHP~3.JPG (201.10 KB) KELCHP~4.JPG (216.21 KB)
Posted on: 2021/3/14 7:45
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Re: Nee photograph of
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Home away from home
 
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Looks like a good thing for Carbon Monoxide poisoning if there is a leak in the exchanger.....
Posted on: 2021/3/14 11:41
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Forum Ambassador
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Not really John. I initially shared your thought but as I noted and later learned, the heat exchanger tubes in contact with the exhaust were corrosion-resistant, either monel or stainless. The outer wrap of the exchanger however was just mild steel and it's eventual failure was probably what brought owners back to the dealerships for replacement with hot water units.
Posted on: 2021/3/14 11:44
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Re: Nee photograph of
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Home away from home
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Not sure what the big deal is. If you are so intent on this option, make one. I once had a boat-88 merc IO 3.7. Had a heat exchanger all brass with stainless or aluminum end caps removable . Looked like this. Tubes inside. Cut holes in end caps-tug on exhaust connectors of your size.
That would be tig as in weld. Auto correct Attach file:  0669B214-99E2-427B-9374-48C5B621D0EF.png (383.78 KB) FF963B6C-C0E5-4C4F-AAF1-59C466D5993A.png (119.12 KB)
Posted on: 2021/3/14 15:03
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Re: Need photograph of heat exchanger
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Home away from home
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Many thanks for the posting of the article. I have moved a couple of times since 2000 and unfortunately, my collection of magazines is now in disarray.
Also, I still have hopes of finding someone with an original car with the Kelch still installed and get a photo to include in my forthcoming book on the '37 Seniors. I have located both the '34 and '37 registers, but did not know which was correct for '37....but then, maybe the LeBaron owner specified the '34 because of its directional control?!?!?!
Posted on: 2021/3/14 21:11
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