Nigel wrote:
I've just installed a 65lt hot water tank, it has 2 heating coils and an
immersion. I haven't got around to connecting the 2 heating coils so for now
it runs on just a 1 kw immersion heater... I connected up my 1.2kw
generator ( just a cheapy from B&Q, not a marine genset) and it took 2 hours
to get warm and about 3 hours to hot.... For no very good reason I had
thought it would heat in about an hour. I have tried looking up calorific
values of water etc, but just got myself confused... anybody here shed
some light for me..

thanks
Nigel



Hi Nigel,

If 65 lt is about 130 pounds, and you
raise the temperature about 100 degrees
F, you're using about 13,000 BTU.

One kw is about 3,414 BTU/hour, so it
should take about four hours.

Close enough?

Sorry for mixing metric with regular.

Chuck

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