Quote:
Originally Posted by Marco Flamingo
I don't know if they make a plate heat exchanger small enough to replace the tube exchangers on my old Lehman. The other issue would be that the plate exchanger's efficiency is probably because of very close tolerances. I'm not sure how it would handle little bits of seaweed and seagull poop.
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Single piece plate heat exchangers (that cannot be disassembled) can be tiny, almost palm sized. They are commonly used in home brewing or 4WD water heating.
I've used modular models for oil heating down to tissue box sized. Obviously these can be made smaller by simply using less plates.