Juan,
Terrible idea, they are useless. For those readers that do not know what a
calorifier is, he means a fresh water heat exchanger that uses engine
coolant to heat drinking water.

Their use unbalances your engine cooling system which causes the engine to
run too cool. If your engine runs too cool, condensated water inside the
motor doesn't get boiled off and mixes with the sulpher in your lube oil.
This forms sulferic acid, which corodes your oil and creates excessive
sludge. This is the very least damage you can expect. On the other side of
the system, they don't create enough hot water, they take up too much space
and the temperature of the output water varies wildly. There is also a
distinct possibility that a leak will occur, which will contaminate your
drinking water supply and may be undetected. This represents a very serious
health risk. If those reasons are still not enough to disuade you, consider
the mode of useage. In order to extract adequate energy from the engine
cooling system, the engine must be under load, not idling. They are a
wonderful idea, that simply does not work. Think electric tankless heaters,
if space is a concern.
Steve

"Juan Bassols" wrote in message
...
I would like to install a calorifier connected to the boat engine. Could
somebody give me advise how to do it and how to avoid mistakes? My
engine is a Iveco aifo 8141 and I would like to connect a small
calorifier, preferably a flat one to fix it near the engine. Thank you!