Moderated Discussion Areas
ContinuousWave: Small Boat Electrical
12-volt Cabin Heaters
|Author||Topic: 12-volt Cabin Heaters|
posted 02-18-2008 09:54 PM ET (US)
Just wondering what those of you with cuddy cabin boats have used for 12-volt heaters? Thanks,
posted 02-18-2008 11:41 PM ET (US)
Hey watch what you call a mans wife,,there is nothing 12 volt about her
posted 02-19-2008 08:01 AM ET (US)
Thought about it, then did the math. Say you need 1000 BTUs, that's about right for 30 sq ft (at least by household calculatios). At 3450 btu/KW, that translates into about 300 Watts, which at 12 volts, requires a current flow of 25 amps. That requires expensive batteries and a charging system that doesn't seem appropriate for a small boat. Or shore power, but if you're at a powered dock, why not just plug in a cheap 100V space heater.
In any application, electricity is an expensive way to generate heat.
posted 02-20-2008 09:50 AM ET (US)
Some of us here in the Great Lakes area have used the Pelonis Ceramic Disk heaters and similar units. Cube shaped, thermostat control, with automatic shut off if tipped over. I Don't have shore power on my Revenge 22 WT, but can run a cord from Dock power and plug her in. More than enough for the Revenge.
posted 02-20-2008 10:30 PM ET (US)
I do not recall ever seeing a heater onboard a boat which was powered from the boat's 12-volt battery.
posted 02-21-2008 08:11 AM ET (US)
Then what are the 12 volt heaters under discussion? I'm sure I've seen them around.
posted 02-21-2008 09:45 AM ET (US)
One of many Google results:
posted 02-21-2008 10:30 PM ET (US)
The one I found for my 19' BellBoy express cruiser is this:
it runs directly off of the bar strip which is directly connected to the battery. 300 watts and fairly effective. I would recommend it.
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