Diesel Air Heaters

DaveS · Newbie

Diesel Air Heaters

iana · Guru

The manual of the heater I installed says only 30' from the horizontal is allowed. Why do you want to mount it vertically?

kgarnett · Senior Member

My webasto installation instructions indicate it can be installed vertically with the hot air outlet at the top.

Ken

Peter_n_Margaret · Guru

kgarnett wrote:
My webasto installation instructions indicate it can be installed vertically with the hot air outlet at the BOTTOM.

According to that diagram, rotating it clockwise puts the outlet at the bottom.

Cheers,

Peter

kgarnett · Senior Member

Yes, agreed. The outlet should be at the bottom if installed vertically.

Ken

Mike Harding · Guru

kgarnett wrote:
Yes, agreed. The outlet should be at the bottom if installed vertically.

Such that the, very, hot air rises back to make the heater (and its internal electronics) even hotter? Sounds a bit odd....

BAZZA44 · Senior Member

DaveS wrote:
Has anyone mounted one of the Chinese Webasto copy air heaters vertically i.e. with the long axis perpendicular to the floor/ground?

I read that as standing the heater on it's end. The answer is no.

The webasto can sit with the fuel inlet and combustion air inlet on the bottom ( going through the floor ) or laying on it's side with those inlets horizontal.

I think all others are the same but don't quote me on that.

Barry

BAZZA44 · Senior Member

Hmm, sorry, I have just had another look at that diagram and agree with Peter. But what I said about on it's side is correct.

Barry

DaveS · Newbie

Thx for the replies. The reason I was looking at mounting it vertically is that it is a much more efficient use of space in my situation. I also allows easy exit of the exhaust, keeps the fuel pump and fresh air inlet and fuel tank outside.
As far as I can see, the diagram from kgarnett is open to debate as to wether the out let should be at the top or bottom.

I have trial mounted with the hot air outlet at the top and it worked perfectly. According to teardown videos on youtube, I would imagine this to be ok, but will let you know further in a few weeks after some testing.
Once again, thanks for your replies.