So I ordered the C-Warm calorifier
and it turned out not to fit
Apprently nothing is made in this size anymore
Although my boat is not that old (2000).
So I took out the old one, and it occurred to me that -- a radiator shop would be the right place to take it. A few hours and 48 pounds later, my calorifier
is back in usable condition. They soldered it and pressure tested it and declared it fit for use, but of course without guarantees that other parts
of the seam might not fail later. The new one is on its way back to the dealer -- saving me about $1300.
It's a lot of work detaching and reattaching seven pipes (cold water
in, hot water
out, two central heating
connections, two engine
connections, one pressure relief outlet) and so forth. These plastic push-fit plumbing
connections are not so completely perfect to use.
But anyway, the repair seems to have worked. I'm about to take a hot shower
Think -- radiator shop.