It was a fairly new stove, hardly ever used, bought the previous summer and only used in summer. Coleman Feather 442 Dual Fuel.<br><br>I pumped it up and tried to light it the way I normally would, but it simply wouldn't light. Later, after I got home, I looked at the instructions on the side of the stove and realized there was a note I hadn't seen before:<br><br>*Note: In temperatures below freezing, PREHEATING PASTE may be needed to heat generator before lighting.<br><br>I was misled by the apparent simplicity of the stove; the mechanism is pretty much identical to the "Green Suitcase" model that's been around since I was a boy. Why I would need PREHEATING PASTE in cold temperatures, I don't know. Maybe all Coleman stoves have the same caveat; I haven't had too many occasions to light them at 30 below, even in Calgary. I can only assume that it had something to do with the volatility of the fuel at low temperatures. The preheating paste would warm the fuel flow tube and raise the temperature of the fuel as it passed through. I was using standard Coleman campstove fuel.