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Unread 05-14-2015, 11:25 PM   #1
wrangler4me
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AT lines for a heat exchanger ?

Hello all
have a question for anyone that might have done this or anyone's 2 cents. I replaced my radiator with one that has the auto trans cooler on the bottom. I have a 5 Speed so I don't need the trans cooler part. I have been wanting to add a heat exchanger for showers while camping. I was wondering if I could just use the 12v pump to run the water threw the trans. cooler on the radiator and if it would heat the water enough to take the chill out of the mountain water. I hope I made this understandable, it is 1:30 am lol. Thanks for any thoughts or help.

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Unread 05-15-2015, 12:22 AM   #2
Anticanman
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No more to add. You've got it right on the money.
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Unread 05-15-2015, 04:55 AM   #3
Que89YJ
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The problem is the exchange time to heat the water. If you had a way of recirculating it until it gets warm it might work but one pass through isn't enough to make a difference in temp.
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Unread 05-15-2015, 09:07 PM   #4
gtg413i
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Quote:
Originally Posted by Que89YJ
The problem is the exchange time to heat the water. If you had a way of recirculating it until it gets warm it might work but one pass through isn't enough to make a difference in temp.
good point. Maybe put a valve in there that when you open it, it goes to the shower head, when you close it, it goes into the recirculation loop and a temp sensor that auto shuts off so it doesn't get too hot.
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Unread 05-16-2015, 08:58 AM   #5
Rebel442
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Quote:
Originally Posted by Que89YJ View Post
The problem is the exchange time to heat the water. If you had a way of recirculating it until it gets warm it might work but one pass through isn't enough to make a difference in temp.
The other issue I foresee is the the 3/8ths line isnt exactly going to flow a river. Your shower will probably be a drizzle.
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Unread 05-16-2015, 08:59 AM   #6
Mike Romain
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Coleman makes a propane hot water on demand unit now....
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Unread 05-16-2015, 03:36 PM   #7
timatoe
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It would certainly need to recirculate. Even if you simply fed a 5 gallon bucket with a pump to the radiator and back etc with a bypass for a shower head.

Quote:
Originally Posted by Rebel442 View Post
The other issue I foresee is the the 3/8ths line isnt exactly going to flow a river. Your shower will probably be a drizzle.
All of the water lines in my motor home are 3/8 ID PEX style lines. The shower isn't an at home type shower but it gets the job done no problem.

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Originally Posted by Mike Romain View Post
Coleman makes a propane hot water on demand unit now....
This would be the way to go. There are also other manufacturers for on demand units for motor homes etc. As long as you're already running a 12v pump pretty much any of them should work.
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Unread 05-16-2015, 04:07 PM   #8
The_Goob
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if you had a decent sized plastic drum to use as a recirc tank like the others have mentioned, im sure you could get the water a little bit warm. enough to wet down, then lather, then rinse and not leave it running. have it set up to pull from the bottom and feed back into the top, with some sort of ball alve to switch it to the shower when needed.
I like the idea
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Unread 05-16-2015, 04:42 PM   #9
fishadventure
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Quote:
Originally Posted by The_Goob
... sure you could get the water a little bit warm. enough to wet down, then lather, then rinse and not leave it running... I like the idea
It only takes about 4 gallons for a shower with a 45psi diaphragm pump and a hard spray 1gal/minute shower head for a good long camp shower. Sure, the teens will be miffed they can only go 4 minutes of full flow

Now a jeep is a small thing...you make me think I need to put my '69 Westfalia back together- and lift it!
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Unread 05-16-2015, 06:12 PM   #10
timatoe
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Quote:
Originally Posted by fishadventure View Post
It only takes about 4 gallons for a shower with a 45psi diaphragm pump and a hard spray 1gal/minute shower head for a good long camp shower. Sure, the teens will be miffed they can only go 4 minutes of full flow

Now a jeep is a small thing...you make me think I need to put my '69 Westfalia back together- and lift it!
I've seen one of THESE running around here lately, lifted on 33's.
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Unread 05-16-2015, 08:02 PM   #11
Anticanman
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I just saw one heading up to the snow near slick rock last night. Thing looked pretty beastly. It wasnt on 33's but they are pretty good fire trail campers.
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Unread 05-16-2015, 08:47 PM   #12
Chrisnvegas
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Why not just use a pickup and slide in? They have worked well for years. I'm looking for a slide in for my F350.

Solar showers are cheap and work great. Why not use a solar shower and use a pump to recirculate while the sun helps out too?
People say this one will hit 110 in 3 hours and it's only 30 bucks.

http://www.amazon.com/Advanced-Eleme.../dp/B005CB7XCK
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Unread 05-17-2015, 05:54 AM   #13
Mike Romain
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Quote:
Originally Posted by Chrisnvegas View Post
Why not just use a pickup and slide in? They have worked well for years. I'm looking for a slide in for my F350.

Solar showers are cheap and work great. Why not use a solar shower and use a pump to recirculate while the sun helps out too?
People say this one will hit 110 in 3 hours and it's only 30 bucks.

http://www.amazon.com/Advanced-Eleme.../dp/B005CB7XCK
We have used those solar shower bags for years on our camping runs. They work very well, but run out fast so we have 2 of them. Handy to have one hanging in the sun by the cooking area too.
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89 YJ Renegade. BBD Carbed 4.0 HO. Locked front and rear with 33x9.5 BFG AT's
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