Outdoor Retailer: Primus Liquid Fuel Pump

1:50 a.m. on January 22, 2011 (EST)
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This thread is for comments on the article "Outdoor Retailer: Primus Liquid Fuel Pump"

Primus has a simple solution to a common liquid fuel stove issue. Scott Kaier shows us how the company's angled pump keeps fuel from fouling or leaking out of the hose.

Full article at https://www.trailspace.com/blog/2011/01/22/outdoor-retailer-primus-pump.html

4:36 p.m. on January 22, 2011 (EST)
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Leave it to Primus. Great design. Anyone know if I can retrofit my my isobutane version of this stove with the liquid fuel components for cold winter backcountry trips? I'd like to not have two of the same stoves. They look the same (the stove part), but I don't recall if there are differences in the internals?

12:32 p.m. on January 24, 2011 (EST)
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My Optimus Nova has this feature, and I bought it years ago. I'm not knocking it at all, I just thought it was pertinent that it isn't a new idea.

7:41 p.m. on January 24, 2011 (EST)
TRAILSPACE STAFF
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XterroBrando, here's Scott Kaier's answer to your question regarding retrofitting:

It's doubtful you'd be able to retro fit this pump to work with a canister gas stove.  With different burners and fuel jets designed to work with specific types of fuels, I'm guessing it would be a difficult switch.  And since you're working with flammable gasses, trying to do so could be dangerous.

Gonzan, thanks for pointing that out. You're right that it's not exclusive or new technology, but I hope it's an interesting point about stove design for some readers to learn about and discuss.

1:18 a.m. on January 25, 2011 (EST)
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We always solved the problem of residual gas in the fuel line by simply breaking the seal between the the fuel tank and pump, raising the burner above the fuel tank, open the stove fuel valve, then let gravity empty the contents of the fuel line back into the fuel tank.  This works with every liquid fueled stove I have ever used. 

Ed

December 12, 2019
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