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Old 08-07-2017, 09:40 AM   #1
angus99's Avatar
City: Signal Mtn., TN
Country: US
Vessel Name: Stella Maris
Vessel Model: Defever 44
Join Date: Feb 2012
Posts: 2,440
Anyone with a sea chest

. . . leave your boat in freezing waters over the winter? We have pulled ours every winter so it's never been an issue, but someone visiting our ER asked if a seachest could be damaged during a hard freeze. It's basically a column of water about 2.5 feet high with nothing to insulate it on five sides once temperatures drop in the ER . . . so the question got me thinking.

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Old 08-07-2017, 10:08 AM   #2
Sealife's Avatar
City: In transit
Country: From USA
Vessel Name: Sea life
Vessel Model: Krogen 42 #61
Join Date: Nov 2013
Posts: 546
When we winter in water(due to use), we make sure the ER never gets to freezing (so sea chest would be fine), We also don't "winterize" systems. If not using boat, we pull and winterize everything.

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Old 08-07-2017, 12:07 PM   #3
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City: Tri Cities, WA
Country: USA
Vessel Name: Beachcomber
Vessel Model: Sea Ray 550 Sedan Bridge
Join Date: Nov 2012
Posts: 3,985
We leave our boat in the water all winter and have a BoatSafe heater in the engine room that keeps things about 40* down there, and several 1500W heaters throughout the interior of the boat.

I goofed up a couple of years ago and forgot about a sea strainer in the lazarette. It was an unheated area. The temps dropped, the plastic bowl in the strainer froze and broke and I ended up having to replace it.

Now I make sure I drain that strainer and also had a 110V plug installed so I can plug in a small 750W heater.
Mike and Tina
Beachcomber 1995 Sea Ray 550 Sedan Bridge
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Old 08-07-2017, 01:15 PM   #4
BaltimoreLurker's Avatar
City: Stoney Creek, MD
Country: USA
Vessel Name: Moon Dance
Vessel Model: 1974 34' Marine Trader Sedan
Join Date: Oct 2007
Posts: 2,777
I've used a BoatSafe type heater when leaving my boat in over the winter. Was never a problem.

Never had a power failure either, so, there's that. But that is a consideration.
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Old 08-07-2017, 01:20 PM   #5
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City: Fort Lauderdale
Country: USA
Join Date: Jan 2014
Posts: 18,547
When we lived on the lake in NC, we kept our boat in the water year round and never winterized it. We kept all areas heated and also checked it daily or more frequently when especially cold.
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