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Expedition Leader
Ok, this is melting my brain a little...
I am proud to be able to do 97.43% of this myself, and figure out what needs to be figured out.
But this has me perplexed, even after a couple days of brainstorming.
I got the furnace installed and running. Easy Peasy
I went with the new plug and play Espar D2L with the Easy Start Pro controller that has built in altitude compensation from Heatso. Install was super easy, was up and running heat in less than an hour.
The job was made even easier by the bracket/mount @Victorian sells to make the install clean and sealed from the elements.
Here are the links:
Heater: https://www.heatso.com/espar-airtronic-d2l-diesel-heater-kit/
Total Composites Bracket to install: https://expeditionupfitter.com/collections/heat-hot-water/products/mounting-flange-for-air-heater
Here is where/why i am confused...
Watched TONS of Vanlife Nerd videos on YouTube and read the instructions multiple times from the Espar website...
Every single Vanlifer nerd video, and the actual instructions, call for a couple things that don't make a link of sense to me, and i want to make sure i am missing something.
The kit includes lots of fuel line, hose, and clamps, and below is a pic of it all installed per the instructions, and per basically every single video i've found
View attachment 620713
If you look close you'll see black pieces of hose going in and out of the fuel pump, and then clamped to the supplied blue hose line. Just at the fuel pump, thats a total of 4 hose clamp connections / possible spots for leaks / failure. Then 2 more where the hose attaches to the heater. Making a total of 5 connections that i simply don't see a point for.
I got this all installed, and it worked fine, but the more i looked at it, the more i cant figure out why in the heck, they just don't use single pieces of hose and eliminate a bunch of connections?
I redid it using high quality 3.5mm fuel line, and eliminated 5 connections:
View attachment 620714
Can anyone shed some light on why they might do this and if i am overlooking something? I am kind of confused...
Half of me thinks there is a reason they do it, half of me thinks mechanically there is zero need for it.
Anyone?
Also, both in the instructions, and every video I've watched, they instruct you to assemble the small fuse block they include in the harness with a 5 and 20 amp fuse and connect that to your existing fuse panel.
I'm ok and consider myself "competent enough" with electrical work but my brain also doesn't see the need to add a fuse block going into another fuse block, as look as the fuses match.
Anyone think i am missing anything thing with this thought process?
Half of me thinks its a case of "YouTube Monkey See Monkey Do"
NOTES: Yeah, the kelderman air lines are just Teed off right now, i am re-routing them. Those big aluminum spacers are going to be removed and replaced with 1/4" thick HDPE rounds soon.
One of the things that make this so easy on this truck (as well as sprinters and promaster) is the OEM aux port. Simply remove that cap, install the quick disconnect hose barb connector and youre good to go. It comes pre-plumbed to 3/4 depth of the tank, so you'll never suck it dry:
View attachment 620721
I did the same thing originally (using rubber fuel line) and a webasto tech on another forum told me to redo it.... Something along the lines of the small rigid fuel line is part of the metering system. He even went so far as to mail me the correct stuff (I bought my heater used didn't have the correct stuff). I do have a piece of flex in mine still so I can pull the tank out, but its pre-pump.
I don't see a reason for the added fuse, unless its between the pump and heater perhaps.