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I am trying to put together a system - think of it as a mini oven that reaches temperatures of no higher than about 75-80 degrees C but normally up to about 50 degrees.

Initially, I'm trying to find out what power would be required to warm a space up to that temperature.

I started with the equations for some rough calculations

Heat up 1 m^3 of air to 50 degrees in the time of 10 minutes.

Started with:

Q = Cp.m.T

Q - Amount of heat (KJ)

Cp - Specific heat (KJ/Kg K)

m - Mass

T - Temperature (Kelvin)

Cp for air is 1.01 (pressure remains constant)

mass = 1.294 kg (worked it from P = RρT)

1 Watt = 1 joule per second

Basically I worked out that it would take a measly 10.89 watts to achieve this.

Q = Cp.m.T

Q = 1.01 x 1.294 x 50

Q = 65.347 KJ

so to heat up this 1m^3, I'd need:

Power = 65347 joules / 600 seconds

Power = 108.91 watts.

For a start.

Does this seem feasible to people? Part of me thinks yes... I think of how much heat a 100 watt light bulb emits and that's made to generate more light than heat.

If it doesn't please let me know where I might be going wrong.

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The main question of this thread though is:

What would be the best way to translate that 108 watts into power to heat up that space.

e.g. a light bulb style filament - only slightly thicker?

Is there any way of working out what length filament would be ok to use or is that not an issue?

Many thanks for contributions.