Yes, my tank is above the heater too and so the flexible line should be fine from the tank to the pump as there's no real pressure. From the pump to the heater though, there is pressure and I found his argument about the flexible hose being a shock absorber (expanding outwards on each pulse) convincing enough to get the hard nylon line kit.Warning, just an observation,
I looked at the video, most installs I've seen in vans have the heater located on or near floor level and the fuel tank level to or higher than the heater. So from what I've seen there is no reason to use a small bore hard fuel line, (as he said), also the flexible hose would seal better.
Also I have not observed any issues with air bubbles and the rubber pulsing, I think he's over thinking it.
Again just an observation.
I see what you mean and I agree that he did create his own problem. My pump is below my heater and so there is a nice path up to the heater and no bubbles would form like in his example.
My own experience with the flexible green hose shows that it degrades after a while. I used it when I bench tested my heater with kerosene. After the test, it sat for over a year with the kerosene in the hose and I see that it's now noticeable harder and a bit discoloured compared to when it was new (I have rest of the new hose to compare it with). Maybe this as bad as it gets and it's stable from this point on (i.e. won't fail), but it made me feel better that I got the nylon line.@travelvanvan
@phil I only upgraded fuel line because I read some folks had the supplied stuff fail on them. It was worth it to me not to maybe have to mess with it all a second time. But yes, the green flexible stuff that came with the unit grips so well you might not even need clamps.
Because I've been tinkering with my heater, I can tell you for sure that most of the body of the heater is only warm to the touch. However, there are areas that ROASTINGLY hot. See pic below.Just saw RD's heater pics under that step....sort of similar to me putting it under my bucket/toilet setup besides the slider door, which I won't use much, preferring the back door as an enter port.
RD's setup has space around the sides, but much less above it... so as long as there is room for air to flow around it, right? Would an inch above be ok? Isn't that about what RD's placement of his heater have? Looks about right. Does RD have anything else under that step besides the heater? I'm wondering about the spacing requirements.... needs to prevent any overheating of the unit.
The entire mounting plate is hot; the other side (not in the pic) is too, all of it. You won't be able to touch it more than just briefly.Is that whole mounting plate 'hot'? Or just the area below it surrounding the hot air exhaust pipe? I was thinking of having it under the VanRug, but below the composite flooring. I might have to rethink this again.