Hot water - Page 4 - SailNet Community
 1Likes
Reply
 
LinkBack Thread Tools
post #31 of 47 Old 02-10-2012
Senior Cruiser
 
sea_hunter's Avatar
 
Join Date: Jul 2000
Posts: 512
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 16
 
Quote:
Originally Posted by Shemlock View Post
Espar makes a tankless diesel fired heater that will run with your heat exchanger and service all your heat and hot water needs.Very compact and economical to run fuel wise and power drain wise. Not a cheap system but fits every requirement I would want on my sailboat.
That's a good suggestion, but would kibosh the ESPAR idea and go with the Webasto version as Espar is known for poor reliability and support.
sea_hunter is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #32 of 47 Old 02-10-2012
Junior Member
 
Join Date: Feb 2012
Location: Massachusetts
Posts: 24
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Thanks

I didn't know of Webasto but do now thanks to you.
Shemlock is offline  
Quote Quick Reply Share with Facebook
post #33 of 47 Old 02-10-2012
tdw
Super Fuzzy Moderator
 
tdw's Avatar
 
Join Date: Oct 2006
Location: Sydney Australia
Posts: 16,611
Thanks: 15
Thanked 106 Times in 99 Posts
Rep Power: 10
     
Quote:
Originally Posted by jackpal View Post
In Hal Roth's book "How to Sail Around the World" he says that his wife and himself simple used a pump sprayer he modified with a nozzle from a kitchen sink. They would just boil a certain amount of water and pour it into the sprayer with some cool water. Then they would just pump up the sprayer with some pressure and shower. This way they were able to take hot showers and conserve water. I thought the book was great. It is just packed with information like that.
I used one of those for many years. I found it preferable to solar cos you can control the heat but thats about all.

On Raven, our previous boat, I went one step further, mixing the hot/cold in a bucket or head basin then dropping one of those cheap 12v shower gizmos you can but at any chandlery. We could use either kettle or solar to heat the water. Worked well and with some simple plumbing you could make it a more permanent installation.

That said, I love our tank heater shower on the current Womboat. Sheer bliss, other than (as per previous quite) having to run the engine to heat the water.

Andrew B

“Life is a trick, and you get one chance to learn it.”
― Terry Pratchett, Nation

Malo 39 Classic
tdw is offline  
Quote Quick Reply Share with Facebook
post #34 of 47 Old 02-10-2012
Crotchety Old Member
 
tomperanteau's Avatar
 
Join Date: Jun 2009
Location: San Pedro Harbor, California
Posts: 903
Thanks: 2
Thanked 3 Times in 3 Posts
Rep Power: 7
 
The way we work it, is that we have a six gallon heater that is engine/electric. We run the engine rarely to charge the batteries and heat water. Do them both concurrently to save diesel. Although we have solar, a good charge twice a week with the diesel at idle is a help. Sponge baths between times. This is our plan when we want to conserve. While on shore power, we bathe at the marina or switch on the electric side.

We consider the six gallon tank to be additional water storage, so it's not wasted space.

Capt'n Tom Living Aboard 50/50

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

S/V Footprints

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Youtube

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


1976 41' Morgan Out Island Sloop. Refitting and redoing her interior for an extended voyage.
tomperanteau is offline  
Quote Quick Reply Share with Facebook
post #35 of 47 Old 02-10-2012
Senior Member
 
Join Date: Sep 2009
Location: Kingston Washington
Posts: 531
Thanks: 0
Thanked 3 Times in 3 Posts
Rep Power: 6
 
Instantaneous propane heaters were practical and popular. The problem was safety. If not properly installed or operated there is a risk of the exhaust fumes getting into the cabin area. As a result most manufactures eliminated those lines for boats. They still make them for RVs where venting is easy. some also say their units can be used on boats. I still have my old unit and will be looking for a replacement

Walt Elliott
Kingston WA
Puget Sound
Cal-29
Waltthesalt is offline  
Quote Quick Reply Share with Facebook
post #36 of 47 Old 02-10-2012
Senior Member
 
fallard's Avatar
 
Join Date: Nov 2009
Location: Mystic
Posts: 976
Thanks: 1
Thanked 14 Times in 13 Posts
Rep Power: 6
 
I replaced a gas-fired Wolter demand heater with a more conventional Isotemp heater in 1999. The Wolter unit had been notoriously unreliable and wasted a lot of water, even after having the Wolter folks upgrade the ignition system. I recall that this type of heater was implicated in carbon monoxide poisoning--including deaths. Mine was installed in the engine compartment that was ventilated by a blower when the heater was in use.

I am much more comfortable with the conventional water heater, which is a pretty basic piece of equipment. A demand heater, by comparison, is a complex piece of gear with more parts waiting to break.
fallard is offline  
Quote Quick Reply Share with Facebook
post #37 of 47 Old 02-10-2012
me at 67!
 
deniseO30's Avatar
 
Join Date: Nov 2006
Location: Bristol pa
Posts: 6,966
Thanks: 55
Thanked 126 Times in 115 Posts
Rep Power: 10
   
Those of you that have larger boats with central ac. You can have your hvac tech install a High pressure hi temp gas to water heat exchanger on the discharge (high side) of the ac compressor/s R-22 and 410A both have pretty high temps that are well above 100* This would NOT serve as on demand. The logic against this idea is.. "well if I'm at dock using Electric for the AC then why not just use the electric WH. But, there are always bragging rights I guess Now, if your boat has an on board generator the reduced load by pre cooling the refrigerant will lower the ac's amp draw and also reduce or eliminate the amps required for the electric element in the WH.
Jus a few words from your friendly neighborhood hvac lady

ps: this would work best on 24,000 btu ac or larger. smaller ones would not be worth the trouble of breaking into the refrigerant circuits.

Denise, Bristol PA, Oday 30. On Tidal Delaware River, Anchor Yacht Club.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

My last project!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


My boat is sold!

Last edited by deniseO30; 02-10-2012 at 11:06 PM.
deniseO30 is offline  
Quote Quick Reply Share with Facebook
post #38 of 47 Old 02-12-2012
Salty
 
MSter's Avatar
 
Join Date: Apr 2008
Posts: 106
Thanks: 0
Thanked 3 Times in 3 Posts
Rep Power: 8
 
This may be a small tangent, but, another point to consider is the use of a diversion load from a solar/wind charge controller. This diversion load circuit can include a 12v heating element installed in the hot water tank in place of the 110v element. Once the charge controller satisfies the battery banks, it diverts usable voltage to the diversion load. This is something I am considering but have not yet tried or even fully investigated. How efficient is this (no idea)???....but it does seem logical not to waste the electrical potential when available.

MSter
1983 Morgan OI 416
S/V Shamrock
MSter is offline  
Quote Quick Reply Share with Facebook
post #39 of 47 Old 02-18-2012
Junior Member
 
JanetGroene's Avatar
 
Join Date: Sep 2011
Location: Suwannee River Florida
Posts: 24
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Here's an alternative. Buy a new garden pressure sprayer (not an old one that has held poisons), heat the water on the stove or whatever means you have, and you have a shower wand. If you don't have a shower stall in the head, it can be used on deck or whatever. We also installed a sink sprayer in the cockpit, hooked into the pressure water system. After a swim, all we need is a fresh water rinse.
JanetGroene is offline  
Quote Quick Reply Share with Facebook
post #40 of 47 Old 02-18-2012
Senior Member
 
fallard's Avatar
 
Join Date: Nov 2009
Location: Mystic
Posts: 976
Thanks: 1
Thanked 14 Times in 13 Posts
Rep Power: 6
 
On those rare occasions when we have a large crew out for a weekend, we supplement our domestic hot water supply with a sun shower. You can get 2-3 adult showers from a 4-5 gal bag, which is a lot better than we get with our pressure system.
fallard is offline  
Quote Quick Reply Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now



In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.


User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Air, Water or Air / Water Cooled Refer Condensor OceanFreedom Gear & Maintenance 12 02-03-2011 12:35 AM
Fresh Water cooling water dirty brown sailak Gear & Maintenance 17 07-31-2009 11:52 PM
Refrigeration -Using the water tank as a cooling water source HenryRusty Gear & Maintenance 7 03-29-2007 12:14 AM
Fresh water boat to salt water svs3 Boat Review and Purchase Forum 6 12-30-2006 12:41 PM
MD3B Volvo-Penta sea water to fresh water conversion slosharron Gear & Maintenance 20 06-17-2003 09:08 PM

Posting Rules  
You may post new threads
You may 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome