Diesel heaters

[muchy_]

When installing a diesel heater such as an eberspacher, does the exhaust outlet have to be in any particular position.....ie out the top, bottom, sides???????
Cos I'm having some trouble with the one I put in about a year ago and I just wondered if thats causing it.

 

[jonnyflybridge]

are we talking the outlet on the boat or the heater, and whats the problem with it?

 

[muchy_]

Sorry, didn't make myself clear there did I. We're talking the outlet on the heater itself. It has run OK for about 8 months or so but now it goes out for no apparent reason. Now this could be straight away or 5 hours later which makes no sense. Surely if there was something wrong with the heater it would go out straight away all the time??? The only thing that I have done is to install double battery banks and a split charge diode. It was after this that it started doing it but I can't see any reason why this would cause it.

 

[markc]

Never rely on an Eberspacher to do the same thing every time. The things that will switch the heater off when it is running are

Flame sensor malfunction
Overheat protection
No fuel
Too little voltage / voltage drop

Does it just stop or go through a shutdown cycle? Any other clues?

Mark

http://www.geocities.com/jinto100/Jintopics.html

 

[jfm]

The exhaust outlet on the Eb unit is at the bottom. You can get on-line pdf manuals for them, lots of detail including exploded drawings and wiring diagrams. Let me know if this would help. I can dig out the url or you can google for it

 

[tome]

Eberspachers are very sensitive to voltage, and adding a split charge diode will cause a drop of almost 1V at the batteries. You can buy compensated units with no voltage drops (Sterling Power etc) if necessary.