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Old 01-25-2013
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Re: Issues with Heating in Annapolis, MD

Hm, I'll partially agree with Jeff here.

The reverse cycle will function, but it's very inefficent at these water temperatures and may place undue wear and tear on the system by running constantly. Cross your fingers that next week's warming trend boosts the water temperature closer to 40F degrees again.

Yes, you can you buy additional space heaters but please ensure that your boat's electrical system can handle the load, or you're courting an electrical meltdown!

Example: If you have 30 amp shore power, you should not continuously run electrical loads that exceed 80% of that. If you have 50 amp shore power, or two 30 amp shore power cables, then you have considerably more wiggle room.

Future planning:

Annapolis is on "the fringe". Each winter, the jetstream oscillates up and down across the area, giving us unseasonably warm temps at times, and very cold temps at other times.

If you're going to remain in the area, I advise you to investigate installing a diesel heater on your boat. It will draw from your main diesel tank, and easily heat your entire boat to very toasty temperatures, with very little electrical load.
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