Diesel heater

Good afternoon

Looking for experience and advice with regards to fitting a diesel heater, I have a 110 hardtop that I’m half way into doing a camper conversion.
Ideally I was thinking about installing the heater in one of the external stainless boxes that can be bolted to the chassis or maybe in the rear wheel arch to save space inside and avoid having the fuel line and exhaust entering the vehicle.
One of my concerns is wading, can the heater be in a 100% sealed box
Also is there any models people can recommend or avoid


Thanks in advance

I think people have fitted them behind the front seats on that flat panel, that way all the smelly bits are outside the living space.

I fitted a cheap chinese one to our boat, have to say I was impressed.
The usual named makes are better quality, but they are also several times the price.