300Tdi Heat Exchanger

**Michael2** · 28th June 2007, 08:43 PM

I'm planning to fit a heat exchanger (hot shower unit) into the engine bay of the Defender.

I'm able to order these with the heater hose and hot water hose inlets and outlets on either side, or both sides.

I'm just wondering how people have set them up on a 300Tdi Defender,

where you've mounted it?
and how you ran the hoses?
have you mounted it in a way you've regretted?

That way I can order the unit with the right configuration.

I'm looking at ordering from www.helton.com.au

Thanks in advance, Michael2

**LandyAndy** · 28th June 2007, 09:14 PM

Hi Micheal
You can build your own.
I have a watercooled intercooler EX a jap import.It would be VERY easy to run it back to front,ie hot water thru the air chanel and heated water thru the normal cooling side.
Mine is off a twin turbo from memory,if you are interested in a pic yell out,will post one.
May even be pursuaded to sell as I cant use it for the same purpose on a TD5,just wont fit!!!! Thats what I bought it for!!!
Andrew

**incisor** · 28th June 2007, 09:24 PM

i have seen two of those installed... both fairly early models and they both had problems with the tails leaking. i would be silversoldering/brazing some decent screw on fittings to the tails if i had one.

i prefer the glind approach myself.

**sclarke** · 28th June 2007, 09:28 PM

I'm making my own and will post pix when i have done so. But as for where to mount? i'll think i'll put mine behind the engine...

Steve

**Michael2** · 29th June 2007, 06:29 AM

Hi Micheal
You can build your own.
I have a watercooled intercooler EX a jap import.It would be VERY easy to run it back to front,ie hot water thru the air chanel and heated water thru the normal cooling side.
Mine is off a twin turbo from memory,if you are interested in a pic yell out,will post one.
May even be pursuaded to sell as I cant use it for the same purpose on a TD5,just wont fit!!!! Thats what I bought it for!!!
Andrew

Hi Andrew, please post the pic.

i have seen two of those installed... both fairly early models and they both had problems with the tails leaking. i would be silversoldering/brazing some decent screw on fittings to the tails if i had one.

i prefer the glind approach myself.

I did read on one of the reports that the early hot water joins had a propensity to leak, but the engine heater hose ends were better barbed. The glind unit is pushing the limits of financial viability.

I'm making my own and will post pix when i have done so. But as for where to mount? i'll think i'll put mine behind the engine...

Steve

I initially thought about making one, but for $130 and the amount of work for which I don't have tools, it's tempting to buy one.

pics of interior here,
(I tried copying the pic to this post, but it was too big!)
http://www.helton.com.au/whats_inside.htm

**Bushie** · 29th June 2007, 06:41 AM

Mine is a Twine shower. The heat exchanger is mounted on the firewall. Hose was from a Gemini (IIRC) CH122F

Honestly have to say it's one of the best purchases I've ever made for camping, been fitted now for 8 years and no leaks ever.

Martyn

**Redback** · 29th June 2007, 08:03 AM

Originally Posted by Michael2

Hi Micheal
You can build your own.
I have a watercooled intercooler EX a jap import.It would be VERY easy to run it back to front,ie hot water thru the air chanel and heated water thru the normal cooling side.
Mine is off a twin turbo from memory,if you are interested in a pic yell out,will post one.
May even be pursuaded to sell as I cant use it for the same purpose on a TD5,just wont fit!!!! Thats what I bought it for!!!
Andrew

Hi Andrew, please post the pic.

i have seen two of those installed... both fairly early models and they both had problems with the tails leaking. i would be silversoldering/brazing some decent screw on fittings to the tails if i had one.

i prefer the glind approach myself.

I did read on one of the reports that the early hot water joins had a propensity to leak, but the engine heater hose ends were better barbed. The glind unit is pushing the limits of financial viability.

I'm making my own and will post pix when i have done so. But as for where to mount? i'll think i'll put mine behind the engine...

Steve

I initially thought about making one, but for $130 and the amount of work for which I don't have tools, it's tempting to buy one.

pics of interior here,
(I tried copying the pic to this post, but it was too big!)
http://www.helton.com.au/whats_inside.htm

I had a Helton exchanger in my Explorer and it worked great, it was the first accessory i put in the Disco, but unfortunately the heat exchanger don't work very well in the TD5 with climate control

The Helton is a great unit, if you look in the installation page you'll see my Explorer in there, he asked me for pics of my installation in my Explorer.

Baz.

**LandyAndy** · 30th June 2007, 08:28 PM

Hi Micheal
Will try and take a pic tommorow for you.
Andrew

**Michael2** · 4th July 2007, 04:22 PM

I found this unit on ebay.
$99 out of Sydney
190 x 72 x 74mm

I've emailed the guy about mounting points on it & heat exchange efficacy.

Any comments? For / Against

http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=290135012593&fromMakeT rack=true

**ladas** · 4th July 2007, 05:35 PM

In my industry I have used brazed plate heat exchangers for many years, they are far more efficient than a shell and tube type exchanger. I have seen a 25% + improvement in heat transfer using PHE's

If I were to mount one in the engine bay - I would protect it with something - in air con units we use thermal barrier foam, just to keep it clean and away from oils/fuel etc.,

One thing to watch - try and keep the cooling system as clean as possible, take the heat exchanger off twice a year and flush it. The distance between the oposing plates is very small - and whist this does offer great heat exchange properties - it can also lead to clogging up with oxides/scale build up.

...........but long as you look after it - they are great.

Have a look at

https://se.tranterphe.com/eipc/Deskt...x'tabid=91

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