Reply
 
Thread Tools Search this Thread Display Modes
 
Old 02-06-2019, 07:26 PM   #1
Senior Member
 
jhance's Avatar
 
City: Eastsound
Country: USA
Vessel Name: Audrey Grace
Vessel Model: 2003 Camano 31
Join Date: Nov 2017
Posts: 119
Current PNW cold snap - interior water line protection?

I am debating whether it's better to keep low-level heat going in the boat to keep water lines from freezing (via the small low-watt fan/heater and now a small space heater on low watts/low setting), or just drain the interior water lines completely. My boat in the water at the slip, and we do use the boat year-round. I'm not terribly excited about a space heater running unattended, but I do have eyes on the boat via a camera, and it shuts off during daylight hours.
Space heater does run straight for about 12 hours (750 watts) at night. Probably best and safest to drain the water completely... I know. How many of you are in a similar situation and running a space heater but not living aboard?
__________________
Advertisement

jhance is offline   Reply With Quote
Old 02-06-2019, 07:42 PM   #2
Veteran Member
 
City: Olympia, WA.
Country: US
Vessel Name: West Coast Spirit
Vessel Model: Kadey Krogen 42 #47
Join Date: Jan 2015
Posts: 29
Im using one of those oil filled electric units on low. I keep it in the shower below deck. If it does short its basically in a fiberglass container. I check it every day.
__________________

JC53 is offline   Reply With Quote
Old 02-06-2019, 08:02 PM   #3
Guru
 
Ken E.'s Avatar
 
City: Bellingham WA
Country: United States
Vessel Name: Hatt Trick
Vessel Model: 45' Hatteras Convertible
Join Date: Nov 2016
Posts: 674
Draining the potable water lines would be good in this frigid NE wind; better would be blowing them out with compressed air or pumping potable antifreeze through them. Another concern is the raw water side of your engines' cooling system. Some heat in the engine room would be good for that.
__________________
Ken on Hatt Trick
Ken E. is online now   Reply With Quote
Old 02-06-2019, 08:13 PM   #4
Guru
 
O C Diver's Avatar
 
City: Fort Myers, FL... Summers in Crisfield, MD
Country: USA
Vessel Name: Slow Hand
Vessel Model: Cherubini Independence 45
Join Date: Dec 2010
Posts: 6,602
As already mentioned, oil filled heaters are a good choice. If you're primarily concerned with plumbing in the engine room, an engine block heater is very safe and radiates heat well.

Something to remember, it takes very little heat to keep an in water boat above freezing. A standard 60 watt incandescent light bulb will keep a bathroom above freezing if you open the door under the sink and close the door to the bathroom. Also, a 60 watt bulb under the galley sink will keep the plumbing from freezing.

Ted
__________________
Blog: mvslowhand.com
I'm tired of fast moves, I've got a slow groove, on my mind.....
I want to spend some time, Not come and go in a heated rush.....
"Slow Hand" by The Pointer Sisters
O C Diver is offline   Reply With Quote
Old 02-06-2019, 08:13 PM   #5
Veteran Member
 
NWSeadog's Avatar
 
City: La Conner, WA
Country: USA
Vessel Name: Full Circle
Vessel Model: CHB 34
Join Date: Jun 2018
Posts: 37
I have two in-wall style electric heaters that I imagine are running most nights right now. I can't wait to see the electric bill after this cold snap. I guess I'm not too concerned about a fire issue. UL has a tendency to be pretty strong on that issue.
NWSeadog is online now   Reply With Quote
Old 02-06-2019, 08:20 PM   #6
Guru
 
IRENE's Avatar
 
City: Port Angeles, WA
Country: USA
Vessel Name: Irene
Join Date: Jan 2016
Posts: 591
I have been running 2 small heaters (1000w and 750w), both on a thermostat. They have been keeping things dry and warmed to about 50-55 throughout the boat.

Last night, I fired up the hydronic system set to 50 in 3 zones. I want the heat from the lines to keep their respective spaces warm, as the water lines are nearby. The boiler is in the lazarette with lots of stuff I dont want frozen, such as the water maker and water heater, and it will keep that space warm. I will also be checking things more frequently during the cold snap.
__________________
Jeff
MV IRENE
IRENE is offline   Reply With Quote
Old 02-06-2019, 08:26 PM   #7
Guru
 
South of Heaven's Avatar
 
City: Sharon, Ma
Country: USA
Vessel Name: Slow Lane
Vessel Model: 2000 Camano 31'
Join Date: May 2017
Posts: 722
Jhance: I have the same boat as you (as you know). I'm running a oil filled space heater 24/7 on my Camano in the engine room but I'm also a full time liveaboard so I'm constantly keeping an eye on things. IMHO don't use ceramic space heaters. Oil filled space heaters are the safest and have a more linear wattage draw. No "kicking" on and off. Just a steady draw.

One important thing that I learned this winter from being a full timer in Boston is that keeping the salon warm is just as important as the engine room. Obviously heat rises, but keeping the salon warm is VERY important for winter storage (or living). Lots of the heat from the salon in the Camano will make it's way down to the ER. I understand that you're only asking about boat storage but I still think my liveaboard knowledge may be relevant.

How cold are we talking? And for how long? You may be worrying over nothing....Another good Camano tip is to keep the lower galley cabinets and lower head cabinets OPEN. It's good to get more salon heat in there.

I would also also suggest buying a Mr Buddy propane heater. Can be a lifesaver.
__________________
2000 Camano 31 (SOLD 2/19)
South of Heaven is offline   Reply With Quote
Old 02-06-2019, 08:30 PM   #8
Guru
 
78puget-trawler's Avatar
 
City: LaConner
Country: USA
Vessel Model: 34' CHB
Join Date: Apr 2016
Posts: 983
I have a small elec heater on low that keeps the boat around 42F. I also have a warm air box next to the engine. Went down today and power must have been off on the dock for a while as it was about 34F inside. This is probably shaping up to be one of the coldest and snowiest February's ever. More on the way!
78puget-trawler is offline   Reply With Quote
Old 02-06-2019, 09:02 PM   #9
Guru
 
Nomad Willy's Avatar
 
City: Concrete Washington State
Country: USA
Vessel Name: Willy
Vessel Model: Willard Nomad 30'
Join Date: Oct 2007
Posts: 15,173
I have a dehumidifier/heater probably on the order of 200w keeps the lazerette and the two 50gal water tanks from freezing. The sheer volume of the tanks helps a lot.
In the engine compartment I’ve got a long “golden rod” about 3’ long. It’s a bit hotter than most being hard to hold onto. 300w.
Fwd in the head I’ve got two goldenrods about 18” and about 22” long. One on the left side of the Raritan head and the other onthe right. Probably 300w.

So I think I’ve got the whole boat covered w less than 1kw on 24/7 though.
Nothing on the boat is winterized.
__________________
Eric

North Western Washington State USA
Nomad Willy is offline   Reply With Quote
Old 02-06-2019, 09:31 PM   #10
Senior Member
 
wwestman's Avatar
 
City: Bellingham, WA
Country: USA
Vessel Name: Excellent Adventure
Vessel Model: 1995 Jefferson Ker Shine 45
Join Date: Apr 2015
Posts: 275
I have my hydronic heat set at 50. I also have wolverine heaters on each main.

Unfortunately my ice make is on the enclosed but not heated back deck. Got one of those phone calls you never want to get. Water running off the boat and a pump running full time. Turned out one of the plastic feed lines in the ice maker froze and then got warm enough to thaw and drained the water tank. Today I was able to refill the water tank and locate the leak and check system. Tomorrows goal is to repair the broken line.

Note to self: next time it is going to drop to 17 degrees, drain the lines outside or put a heater out there.
wwestman is offline   Reply With Quote
Old 02-06-2019, 09:41 PM   #11
Guru
 
koliver's Avatar
 
City: Saltspring Island
Country: BC, canada
Vessel Name: Retreat
Vessel Model: C&L 44
Join Date: Nov 2007
Posts: 2,780
The lowest temp prediction I can see for my boat (Vancouver harbour) is -7C, 19.4F. Vancouver has seen lower temps over extended cold snaps in the 33 winters I have had a boat in the water here. My successful regime consists of:
1-leave the water heater turned on - in the ER so provides warmth to the whole of the ER including engines.
2-leave the charge on - also in the ER
3- in the forecabin, heater on its lowest setting
4-in the aft cabin, heater on its lowest setting
I have seen ice on the water around my boat once or twice, but never thick ice.
I have never had any signs of freezing inside the boat.
My hydro bill will be above $50 (Cdn, so $30 US) per month for the winter.
__________________
Keith
koliver is offline   Reply With Quote
Old 02-06-2019, 09:55 PM   #12
Senior Member
 
jhance's Avatar
 
City: Eastsound
Country: USA
Vessel Name: Audrey Grace
Vessel Model: 2003 Camano 31
Join Date: Nov 2017
Posts: 119
Jason -

I am running a 0.65A heater/fan in the engine room and another in the galley with the head door open a crack and cabinet doors open. I needed to upgrade that program, though, when I found an icicle hanging from the galley faucet. It probably didn't help that, although I thought I had closed it, the galley roof vent was open, and that was allowing cold air in. Corrected that, moved the 0.65A heater to head, and small space heater in the galley. Also plugged engine room vents.

Low temps forecast to be 20F, maybe a little lower, with a 25 knot sustained NE wind. Cold for our standards, and that wind sucks the heat out of everything. Of course the worry is that if the power goes out, I am either draining the lines or on the boat running the Webasto! I just haven't studied the draining procedure... I assume there is a fitting in the engine room at a low point that I can disconnect.
jhance is offline   Reply With Quote
Old 02-06-2019, 10:12 PM   #13
Senior Member
 
JustBob's Avatar
 
City: Bainbridge Island
Country: USA
Vessel Name: Mahalo
Vessel Model: 2018 Hampton Endurance 658
Join Date: Apr 2016
Posts: 425
Also if you can close off your ER vents that is quite helpful.
__________________
JustBob
www.mvmahalo.com
JustBob is offline   Reply With Quote
Old 02-07-2019, 12:33 AM   #14
Guru
 
City: Between Oregon and Alaska
Country: US
Vessel Name: Charlie Harper
Vessel Model: Wheeler Shipyard 83'
Join Date: Jun 2016
Posts: 1,277
It depends on the water temp more than air temp. I liveaboard, so my boat doesn't get as cold. But I don't heat the engine room unless working there and it's well insulated from the rest of the boat. The coldest I ever measured in the bilge or other unheated space was 34F. That was one winter in Nanaimo, BC. Night temps were about 0F. During that time I spent some time away and during that time the dock experienced some power problems and the power had been off for 2 days. In the main cabin it was still 40F when I returned. Sea water temp was around 50-55F.
Lepke is offline   Reply With Quote
Old 02-07-2019, 12:38 AM   #15
Guru
 
tiltrider1's Avatar
 
City: Seattle
Country: USA
Vessel Name: AZZURRA
Vessel Model: Ocean Alexander 54
Join Date: Aug 2017
Posts: 1,058
I leave on the electric boiler and the circulation pump for the hydronic system while i’m Gone. This keeps heat in all parts of the boat.
tiltrider1 is offline   Reply With Quote
Old 02-07-2019, 11:05 AM   #16
Guru
 
RCook's Avatar


 
City: Holladay, UT
Country: USA
Vessel Name: Dream Catcher
Vessel Model: Nordic Tug 37-065
Join Date: Oct 2007
Posts: 603
In Poulsbo, our boat has two Caframo electric heaters going, and a fairly large dehumidifier. Several cabinet doors and hatches open for circulation, and the engine room vents blocked. Large fuel and water tanks full.

No problems in the last two winters, but this cold snap has me hoping my cockpit shower (which I haven't yet figured how to drain completely) survives OK.
__________________
Richard Cook
Dream Catcher (Nordic Tug 37-065)
"Cruising in a Big Way"
RCook is offline   Reply With Quote
Old 02-07-2019, 11:11 AM   #17
Senior Member
 
wwestman's Avatar
 
City: Bellingham, WA
Country: USA
Vessel Name: Excellent Adventure
Vessel Model: 1995 Jefferson Ker Shine 45
Join Date: Apr 2015
Posts: 275
Oh damn, had not even thought about the cockpit shower. We never use it but I am sure it has water. I guess I will find out when the thaw comes.
wwestman is offline   Reply With Quote
Old 02-07-2019, 11:51 AM   #18
Senior Member
 
City: Annapolis, MD
Country: USA
Vessel Name: Think Big
Vessel Model: Camano Troll 2003
Join Date: Aug 2017
Posts: 107
On my Camano, I shut off the water input to the HW heater and drained it most of the way which also drained the higher HW lines after opening their faucets. My CW is all still on except I did try to drain the lines to the cockpit. We'll see if I failed but last year I did fine. I have an extreme heater in the engine room and a ceramic on the galley floor pointed at the open head with open cabinet door. I sit in ice a few days each winter. Got to believe your water temps in PNW are much better.
MiltonP is offline   Reply With Quote
Old 02-07-2019, 12:38 PM   #19
Senior Member
 
porman's Avatar
 
City: Duvall, Wa
Country: USA
Vessel Name: Beach Music II
Vessel Model: 2003 Mainship 430 Trawler
Join Date: Aug 2014
Posts: 411
During the first cold winter in Seattle with our Camano I learned two lessons. Drain the cockpit shower. I didn't and the freezing water pushed the handheld nozzle off. That was the only damage. Drain the raw water anchor washdown. The filter cracked, but the seacock was closed so no danger of sinking. I kept three air dryers going and had no other problems.
porman is offline   Reply With Quote
Old 02-07-2019, 01:16 PM   #20
Guru
 
Ken E.'s Avatar
 
City: Bellingham WA
Country: United States
Vessel Name: Hatt Trick
Vessel Model: 45' Hatteras Convertible
Join Date: Nov 2016
Posts: 674
Quote:
Originally Posted by RCook View Post
In Poulsbo, our boat has two Caframo electric heaters going, and a fairly large dehumidifier. Several cabinet doors and hatches open for circulation, and the engine room vents blocked. Large fuel and water tanks full.

No problems in the last two winters, but this cold snap has me hoping my cockpit shower (which I haven't yet figured how to drain completely) survives OK.
Richard, are you in the water at Poulsbo or hauled out?
__________________

__________________
Ken on Hatt Trick
Ken E. is online now   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





All times are GMT -5. The time now is 11:27 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012