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True or false? Will it produce a maximum of 1w of heat?
It'll produce more. P = U2/R, no matter what the specified wattage says.
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True or false? Will it die if more than 1w goes through it?
No. Not as long as you manage to carry the heat away.
And the latter means you should get resistors which allow to get this heat away. Wires embedded into ceramics are not so well in this regard. Ones with wires wound near the outer surface are much better. Also make sure your resistor can withstand 300 °C; such info is inside data sheets.
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