Espar Underseat Installation

Is there any reason to use the metal mounting plate for the under seat installation? My kit came with one, but as far as I can tell, it's only necessary if there isn't a flat mounting surface available. I have a normal height seat base and the plastic tire service compartment which may limit my mounting options to a slight degree, but I'm assuming I'll still be able to find a flat surface to squeeze the unit into.

Thoughts?
 

sprint2freedom

2008 NCV3 170ext
I didn't use a mounting plate. I wouldn't bother unless access of the underside is especially difficult where you're mounting it.

Just keep in mind that you'll need access to the four studs/nuts underneath the heater in order to remove it for service.
 
I didn't use a mounting plate. I wouldn't bother unless access of the underside is especially difficult where you're mounting it.

Just keep in mind that you'll need access to the four studs/nuts underneath the heater in order to remove it for service.
Right. I think my access may be partially blocked by the tire service kit compartment, but not enough to really limit access. I was planning on sealing around the rubber gasket with RTV silicone, so removing the unit might be a pain with that stuff on there.

I do like the idea of jigsawwing out one large hole vs multiple individual holes although it seems like the plate wouldn't offer as great of a seal vs silicone on the unit itself straight to the floor.

I'll take a closer look with the seat off and see what makes more sense.
 

Stev_H

New member
@Greta_Van_Gogh under the drivers seat (UK) is where I fitted mine, when you remove your seat and take a look at the floor in there you should see almost the perfect shape in the floor pressing which the heater fits into, the sealing gasket fits the space almost like it was made for it, look for 2x semi circular shapes at approx. 45 degrees angle. Not a very good explanation and no photos unfortunately but you should see what I'm describing no problem.
 
@Greta_Van_Gogh under the drivers seat (UK) is where I fitted mine, when you remove your seat and take a look at the floor in there you should see almost the perfect shape in the floor pressing which the heater fits into, the sealing gasket fits the space almost like it was made for it, look for 2x semi circular shapes at approx. 45 degrees angle. Not a very good explanation and no photos unfortunately but you should see what I'm describing no problem.
Thanks @Stev_H. Pretty sure I know what spot you're talking about from other posts in this thread. Appreciate the advice!
 

Kajtek1

2015 long/tall limo RV 2.1l
I have Chinese clone, but when installing the heater I wanted to have easy ducting to go behind front curtain and I also did not want to waste the storage space in seat pedestal.
Here is my install. The heating duct is cut flush with pedestal, but for use I have street elbow with extension to go behind the curtain. This way front of the cabin is not getting direct heat, saving it for the rear.
The floor in the spot has small ribs, where I filled with weather-stripping in low spots and put heater gasket over it.
IMHO perfect sealing of heater base is not crucial. Doing the job I discovered Sprinter has lot of other holes in the floor, who allow for air exchange with cabin.

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