Reply
 
Thread Tools Display Modes
 
Old 05-30-2015, 06:22 PM   #1
Senior Member
 
TexGX's Avatar
 
Join Date: Dec 2009
Location: Phoenix, AZ
Posts: 466
Garage
110 Water Heater plumbed to engine?

I was thinking it would be cool if I coul use engine heat to warm the water while driving . I have a 2 gallon tank. Has anyone done this? I thought a heat exchanger with an additional pump to move water.

What about same idea but with a solar option? A black piece of PVC somewhere? It seems that I have this great heat vessel and only one way to heat it. I know someone tried adding 12v, but I want to use the free heat in the engine.

I know many have talked about pressure in the tank, but could work out an external pressure release so there is no build up.

TexGX
__________________

__________________
TexGX
2003 7.3PSD RB50 Quigley (The Yeti)
viewtopic.php?f=10&t=13220
2006 Casita (Makes it a three bedroom 1 and 1/2 bath)
TexGX is offline   Reply With Quote
Old 05-30-2015, 07:23 PM   #2
Senior Member
 
Join Date: Apr 2011
Location: Oregon Ciry Oregon
Posts: 2,426
Re: 110 Water Heater plumbed to engine?

A 110v water heater will have a pressure and temperature (P&T) relief valve built into it and they all have the same ratings. You can look at the one in your home or on the 110v heater you plan to use for the rating. You will need a double wall heat exchanger iwith a pump on the water heater side. You could use a gravity circulation but I doubt you would be able to get enough height differential in the van. It would also be good to have a solenoid valve on the engine side to prevent water from entering the heat exchanger when you do not want it to. Temperature control is from the heat control slider on the dashboard.
__________________

__________________
"A straight line may be the shortest distance between two points but it is by no means the most interesting". Jon Pertwee as Dr. Who, The Time Warrior.
larrie is offline   Reply With Quote
Old 05-30-2015, 09:30 PM   #3
Senior Member
 
boywonder's Avatar
 
Join Date: Jul 2013
Location: So Cal
Posts: 2,955
Re: 110 Water Heater plumbed to engine?

One issue to consider is that coolant temp in modern vehicles is above the boiling point of water (this increases the engine's thermal efficiency)........like 240 deg F..........

Your typical hot water heater is set at less than 130 deg F to prevent scalding......if you use a coolant heat exchanger you need to have some sort of temperature limiting to prevent the T/P valve from opening and to prevent scalding.
__________________
2008 E350 RB passenger 4WD SMB penthouse
2013 KTM 350 EXC
2008 KTM 250 XCF-W
2000 KTM 200 EXC
2003 Honda Element
boywonder is offline   Reply With Quote
Old 05-30-2015, 10:49 PM   #4
Senior Member
 
TexGX's Avatar
 
Join Date: Dec 2009
Location: Phoenix, AZ
Posts: 466
Garage
Re: 110 Water Heater plumbed to engine?

Good points. I wonder about having a switch for the pump so you could turn it on for just a monument before camping. I need to research further. I might just need to switch heaters all together.

TexGX
__________________
TexGX
2003 7.3PSD RB50 Quigley (The Yeti)
viewtopic.php?f=10&t=13220
2006 Casita (Makes it a three bedroom 1 and 1/2 bath)
TexGX is offline   Reply With Quote
Old 05-31-2015, 07:23 AM   #5
Senior Member
 
Join Date: Apr 2011
Location: Oregon Ciry Oregon
Posts: 2,426
Re: 110 Water Heater plumbed to engine?

Found this thread over at Expidition Portal, http://www.expeditionportal.com/forum/t ... ter+heater. It has a number of examples showing on board hot water systems.
__________________
"A straight line may be the shortest distance between two points but it is by no means the most interesting". Jon Pertwee as Dr. Who, The Time Warrior.
larrie is offline   Reply With Quote
Old 05-31-2015, 08:31 AM   #6
Senior Member
 
TexGX's Avatar
 
Join Date: Dec 2009
Location: Phoenix, AZ
Posts: 466
Garage
Re: 110 Water Heater plumbed to engine?

Thanks Larrie,

I found some good ideas.

TexGX
__________________
TexGX
2003 7.3PSD RB50 Quigley (The Yeti)
viewtopic.php?f=10&t=13220
2006 Casita (Makes it a three bedroom 1 and 1/2 bath)
TexGX is offline   Reply With Quote
Old 05-31-2015, 09:03 AM   #7
Senior Member
 
ANZAC's Avatar
 
Join Date: May 2011
Posts: 1,005
Re: 110 Water Heater plumbed to engine?

110v water heaters for boats also have heat exchangers. I know the one in my boat runs off the starboard engine. They are really bulky though, and they draw a truckload of current when on 110. Personally I would stick with propane. Cheap and works well.
__________________

__________________
Sportsmobile-less.

"A job worth doing is worth doing at least twice."
ANZAC 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

» Sportsmobile Registry

AWOL

Twoxentrix

Vanna

gahamby
Add your Sportsmobile
Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by Sportsmobile SIP or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 10:58 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2019, vBulletin Solutions, Inc.