Non-Standard Espar Heater Install Tips for your Van Conversion

In the 4x4 Mercedes Sprinter I’m building I’ve decided to use an Espar S2 D2L heater. This is a short video covering some installation tips I haven’t seen other people mention like heater location, reducing the sound with Propex acoustic ducting and mounting the heater in an external box.

0:00 Intro
0:23 Heater Location
1:24 Noise Reduction Ducting
2:35 Useful Adapters
4:21 External Mounting Details

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Relevant Parts:

Propex Acoustic Ducting: https://vancafe.com/propex-60mm-acous...

Sure Marine Service has one of the best selections of ducting parts. Here are the ones I highlighted in the video:
60mm Inline Splice: Webasto 1320469A https://www.suremarineservice.com/Hea...
60mm Elbow: Webasto W298-49A https://www.suremarineservice.com/Hea...
Heater vent: Webasto 1320204A https://www.suremarineservice.com/Hea...

External Mount Enclosure:
This is the one I used: https://www.butlertechnik.com/eberspa...
Alternative option: https://www.heatso.com/external-mount...
These two have different sizes and access options so choose the one that better works for you.

Ducting hole grommets: https://www.mcmaster.com/63595K55/
Ducting insulation: https://www.zoro.com/aeroflex-2-58-x-...

Silicone Elbow: I NO LONGER RECOMMEND THIS PART...OR MAYBE I JUST GOT A KNOCK OFF. The Part Number is Propex 811E. The one in the video did great, but the last one I got melted which is odd given the temperature it was and that it is supposed to be made of silicone. Anyways, I'd recommend a SS option like: https://www.heatso.com/espar-eberspac...