Trangia A pre heater FV21 for spirit burner

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Easy to install

Fits nicely on the burner and does it's job to preheat the fuel. Two stars off as it does tend to get stuck under the burner, further than the highest groove.

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Works well and speeds up cooking considerably in freezing weather.

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works well at -29 degrees

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Provides faster operating temperature in cold conditions. Travels inconspicuously in the burner, attached with it.

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Made sure Trang worked well on a winter hike, almost 30c below zero

A bit fiddly to use, but works really well and will make your flame burn hotter and last longer. Dont use inside your tent as this is a bit prone for ethanol spilling a bit around.

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Works and fits easily.

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Should return longer, but otherwise good.

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An impractical widget that twists easily. A little alcohol can be injected directly around Trangia, which drives exactly the same thing. That way you don’t have to pay in vain.