"Wayne.B" wrote in message
...
On Tue, 22 Mar 2005 20:47:30 -0500, "Doug Dotson"
dougdotson@NOSPAMcablespeedNOSPAMcom wrote:

Depends upon alot of things, like the outside temperature, the insulation
of the boat, etc. I keep an electric heater on all winter and if the temp
is
below 40, it runs alot more than 30%.

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I'm sure that's true but I'd probably be plugged into dock power in
that kind of weather.

Any warmer than 40 and you don't need a heater at night anyway.