That "Green" fuel hose used on Chinese diesel heaters?

[rcx132]

I've wall mounted my diesel heaters so that they take up less space. I then bought some power tool fuel hose to plumb it all up. It's the stuff often comes in a yellow tinge, used on chain saws, lawn mowers, strimmers, etc. My theory was that such hose is designed to run close to an engine and would therefore be adequately heat proof for a diesel heater where it comes awfully close to the hot exhaust.

It arrived today and I tested it with a heat gun. It's pretty heat proof, but not as heat proof as the green hose that comes fitted to some Chinese diesel heaters.

Anyone know what the green hose on diesel heaters is made of ?

In the mean time I've fitted the yellow hose with some heat proof sleeving over it (as used to protect wires in commercial ovens).

 

[mike os]

I'm guessing its silicone

 

[mcostello]

Yellow is Tygon (American name) if You want to compare specs.

 

[Misterg]

I'm guessing its silicone

Normal silicone is not very resistant to fuel (it swells and splits over time).

Tygon is a brand name that covers several materials - it’s their F4040A ‘fuel & lubricant’ tube that you would want. I presume that it’s some sort of polyurethane, but the actual composition seems to be proprietary. I’d guess that the Chinese stuff is something similar.

 

[magnet]

Would it be an idea to insulate the exhaust pipe? Just a thought.

 

[bert]

I don't think you will have a problem the way you have it now

 

[dan.taylor.1]

Would it be an idea to insulate the exhaust pipe? Just a thought.

The one I just installed on a mates van had a roll of that fiberglass exhaust wrap and some stainless ties with it.

 

[Scalarocco]

I thought it was Polyurethane. On a side note, green tube with red diesel gives you orange. Who knew?!

 

[PhillipM]

I doubt it's polyurethane, they tend to melt at fairly low temperatures, maybe FEP or similar, or PFA/THV which is used for a lot of engine bay OEM fuel piping these days