Reply
 
Thread Tools Display Modes
 
Old 05-18-2014, 04:57 PM   #1
Veteran Member
 
City: Fairview, TX
Country: USA
Vessel Name: Gray Eagle
Vessel Model: 1985 35" CHB
Join Date: Sep 2012
Posts: 44
Hot water heater recommendations

Thanks everyone for you comments on chain rust. Very helpful. Next issue. Wanting to take showers on boat, but hot water heater leaking. Admiral said, get it replaced this week. Looking at about 6 gal heaters. Any comments? Give me the good, bad and ugly. Like the Raritan but wow, they are very proud of those puppies. Any experience with West Marine brand? Kuuma?
__________________
Advertisement

jnvoss is offline   Reply With Quote
Old 05-18-2014, 05:03 PM   #2
Guru
 
City: Tuckerton, NJ
Country: USA
Vessel Name: WIRELESS ONE
Vessel Model: 36 Gulstar MarkII
Join Date: Mar 2011
Posts: 937
I replaced my old 6 gallon with a Atwood 10.5 gallon square style heater it's been great and my wife appreciates the additional hot water it provides.
Bill
__________________

Billylll is offline   Reply With Quote
Old 05-18-2014, 08:26 PM   #3
Guru
 
hollywood8118's Avatar
 
City: Port Townsend Washington
Country: USA
Vessel Name: " OTTER "
Vessel Model: Ocean Alexander Europa 40
Join Date: Nov 2009
Posts: 1,482
I have had good luck with the Kumma water heaters.. and their priced decent.. just keep up on the anode.

HOLLYWOOD
hollywood8118 is offline   Reply With Quote
Old 05-18-2014, 08:44 PM   #4
Senior Member
 
Rusty's Avatar
 
City: WA
Country: US
Join Date: Jan 2011
Posts: 214
We just replaced our old Raritan water heater. I am lazy though, so we replaced it with exactly the same thing because all the hoses, connections, and wiring lined up.

Hot water | m/v Archimedes - An Old Grand Banks 42
Rusty is offline   Reply With Quote
Old 05-18-2014, 09:39 PM   #5
Senior Member
 
Boydster's Avatar
 
City: Squamish, B.C.
Country: Canada
Vessel Name: Change of Heart
Vessel Model: Grand Banks 42
Join Date: Mar 2011
Posts: 221
Great blog Rusty! Good timing too as I'm just about ready to replace our water heater.
Sorry to say I haven't updated our website in over a year. - Boyd
__________________
Everything on your boat is broken...you just don't know about it yet.
Boydster is offline   Reply With Quote
Old 05-18-2014, 10:02 PM   #6
TF Site Team
 
Bay Pelican's Avatar
 
City: Chicago, IL
Country: USA
Vessel Name: Bay Pelican
Vessel Model: Krogen 42
Join Date: Oct 2007
Posts: 2,781
Just ordered the Isotherm 6 gallon unit. Has a great reputation and what is better for me is the 750 watt element (110 volt). My current unit which is 16 years old has a 1,500 watt element. When I run the generator I have two chargers (100 and 135 amp), refrigeration running. If I add the hot water heater for the 15 minutes it needs, the hertz on the generator output drops almost 2 cycles per minute (from 59 Hertz to 57 hertz). While this is workable given Bay Pelican's equipment, I prefer not to see 56.5 hertz on my meter. And whether I run the hot water heater for 15 or 30 minutes makes no difference in generator run time.
__________________
Marty
Bay Pelican is offline   Reply With Quote
Old 05-18-2014, 10:51 PM   #7
Guru
 
N4712's Avatar
 
City: South FL
Country: U.S.A
Vessel Name: Oliver
Vessel Model: Nordhavn 47 Hull# 12
Join Date: Apr 2013
Posts: 3,613
We have a Seaward 11 gallon, it works great.
__________________
Thanks, Oliver
M/V Oliver
Nordhavn 47 Hull #12
N4712 is offline   Reply With Quote
Old 05-18-2014, 11:53 PM   #8
Guru
 
Xsbank's Avatar
 
City: Pender Harbour, BC
Country: Canada
Vessel Name: Gwaii Haanas
Vessel Model: Vancouver Shipyards Custom Aluminum 52
Join Date: Sep 2013
Posts: 2,443
Torrid? Tempo? I would buy the exact same for the same fittings, as another mentioned, but I would never have less than 11 gallons. 2 navy showers with 11 gallons, my wife washing her hair, ergo bingo, no water to wash dishes.
__________________
Don't believe everything that you think.
Xsbank is offline   Reply With Quote
Old 05-19-2014, 12:20 AM   #9
Guru
 
HopCar's Avatar


 
City: Miami Florida
Vessel Name: Possum
Vessel Model: Ellis 28
Join Date: Aug 2011
Posts: 3,489
I like the Raritan because of their porcelain lined tank. If you can't go the cost of a Raritan, at least get one with a stainless steel tank. I once cut open an aluminum water tank and it was nasty looking.

Shop around for the Raritan before you give up on it.
HopCar is offline   Reply With Quote
Old 05-19-2014, 12:33 AM   #10
TF Site Team
 
Peter B's Avatar
 
City: Brisbane
Country: Australia
Vessel Name: Lotus
Vessel Model: Clipper (CHB) 34 Sedan/Europa style
Join Date: Jun 2008
Posts: 6,669
Send a message via Skype™ to Peter B
My vote goes to the Isotherm/Isotemp range. I replaced the one in my vessel, which is the same basically as yours jnvoss, and once I flushed out the pipes from the engine cooling system to the H/W cylinder it works like a charm, and even tho I am strictly 12v DC out on the water, giving it a quick heat on shore AC while loading the boat gets it up tp quite warm before we even leave the dock, then the engine takes over and does the rest. Plenty hot water (careful as actually almost too hot - at home we are mandated now to max 50C), but I installed the 42 litre one. = ? ~ 10gal..?

I was amazed the old one still worked, but slow, because of gunge in the pipes mainly.
Attached Thumbnails
Click image for larger version

Name:	Image140.jpg
Views:	85
Size:	60.7 KB
ID:	29945   Click image for larger version

Name:	Image134.jpg
Views:	89
Size:	66.5 KB
ID:	29946   Click image for larger version

Name:	Image144.jpg
Views:	87
Size:	96.0 KB
ID:	29947  
__________________
Pete
Peter B is offline   Reply With Quote
Old 05-19-2014, 06:29 AM   #11
Guru
 
City: Tuckerton, NJ
Country: USA
Vessel Name: WIRELESS ONE
Vessel Model: 36 Gulstar MarkII
Join Date: Mar 2011
Posts: 937
Isotherm and Raritan are both good units I have had my Atwood for 7 seasons it's still going strong.
Bill
Billylll is offline   Reply With Quote
Old 05-19-2014, 06:59 AM   #12
FF
Guru
 
FF's Avatar
 
Join Date: Oct 2007
Posts: 16,515
Underway even the smaller sizes work IF you shower or do laundry underway
FF is offline   Reply With Quote
Old 05-19-2014, 07:57 AM   #13
TF Site Team
 
Larry M's Avatar
 
City: JAX, FL
Country: USA
Vessel Name: Hobo
Vessel Model: Krogen 42-120
Join Date: Nov 2008
Posts: 5,725
Quote:
Originally Posted by hollywood8118 View Post
... just keep up on the anode... HOLLYWOOD
We lost a Torrid after 6 years because we never changed the anode. Didn't know we had to.

These 3 are from Raritan 12 gallon hot water heaters. The top is new, the middle was changed at 3 years. The bottom, I pulled from one that was the original anode and the water heater had failed. I do not the age of the heater.
Attached Thumbnails
Click image for larger version

Name:	Hot water heater anode 004 a.jpg
Views:	133
Size:	134.7 KB
ID:	29956  
Larry M is offline   Reply With Quote
Old 05-19-2014, 08:00 AM   #14
Guru
 
City: Tuckerton, NJ
Country: USA
Vessel Name: WIRELESS ONE
Vessel Model: 36 Gulstar MarkII
Join Date: Mar 2011
Posts: 937
Larry great point about changing the anode. This is often the main failure on a boat's hot water heater.
Bill
Billylll is offline   Reply With Quote
Old 05-19-2014, 09:25 AM   #15
Guru
 
ranger42c's Avatar
 
City: Maryland
Country: USA
Vessel Model: 42' Sportfish
Join Date: Aug 2013
Posts: 3,156
Our Atwood is 12 years old, still fine.

-Chris
__________________
South River, Chesapeake Bay
ranger42c is offline   Reply With Quote
Old 05-19-2014, 09:28 AM   #16
Guru
 
City: Tuckerton, NJ
Country: USA
Vessel Name: WIRELESS ONE
Vessel Model: 36 Gulstar MarkII
Join Date: Mar 2011
Posts: 937
Has anyone tried supplemental solar water panels to heat water on their boat?
I'm thinking of trying this on my Gulfstar. I will require a 12vdc circulation pump and a pair of solar water panels.
Bill
Billylll is offline   Reply With Quote
Old 05-19-2014, 10:56 AM   #17
Guru
 
City: Carefree, Arizona
Country: usa
Vessel Name: sunchaser V
Vessel Model: DeFever 48
Join Date: Apr 2008
Posts: 6,360
Quote:
Originally Posted by N4712 View Post
We have a Seaward 11 gallon, it works great.
The worst tanks out there IMHO are those made of Al only that are non glass lined, like most Seawards. It is strange that Al is not the fresh water tank of choice but some hot water tanks mfrs use it - think low price on the build side. Like using Al wire vs Cu wire in el cheapo house trailers

My all Al Seaward rotted out after 9 years and was replaced by a glass lined Torrid.
sunchaser is offline   Reply With Quote
Old 05-19-2014, 11:14 AM   #18
Guru
 
City: Tuckerton, NJ
Country: USA
Vessel Name: WIRELESS ONE
Vessel Model: 36 Gulstar MarkII
Join Date: Mar 2011
Posts: 937
I also had issues with aluminum holding and waste tanks.
Bill
Billylll is offline   Reply With Quote
Old 05-19-2014, 11:30 AM   #19
Guru
 
N4712's Avatar
 
City: South FL
Country: U.S.A
Vessel Name: Oliver
Vessel Model: Nordhavn 47 Hull# 12
Join Date: Apr 2013
Posts: 3,613
Quote:
Originally Posted by sunchaser View Post
The worst tanks out there IMHO are those made of Al only that are non glass lined, like most Seawards. It is strange that Al is not the fresh water tank of choice but some hot water tanks mfrs use it - think low price on the build side. Like using Al wire vs Cu wire in el cheapo house trailers

My all Al Seaward rotted out after 9 years and was replaced by a glass lined Torrid.

Thanks for the heads up, I'll keep my eye on it. What are the signs that it's needing replacement, leaking, not heating?
__________________
Thanks, Oliver
M/V Oliver
Nordhavn 47 Hull #12
N4712 is offline   Reply With Quote
Old 05-19-2014, 12:03 PM   #20
Guru
 
City: Tuckerton, NJ
Country: USA
Vessel Name: WIRELESS ONE
Vessel Model: 36 Gulstar MarkII
Join Date: Mar 2011
Posts: 937
Quote:
Originally Posted by sunchaser View Post
The worst tanks out there IMHO are those made of Al only that are non glass lined, like most Seawards. It is strange that Al is not the fresh water tank of choice but some hot water tanks mfrs use it - think low price on the build side. Like using Al wire vs Cu wire in el cheapo house trailers

My all Al Seaward rotted out after 9 years and was replaced by a glass lined Torrid.
As well as many homes built in the early 70's mine being one of them. I had to rewire the entire house 8 years ago.
But I got a good deal on the home anyway. I'm told it was done because there was a copper shortage due to the Vietnam war, don't know?
Bill
__________________

Billylll is offline   Reply With Quote
Reply

Thread Tools
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 07:31 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012