Quote:
Originally Posted by Dizaster66
Hi
Was just wondering if you could use a Dimmer Switch (the kind used for lights)
to set maximum temperature of a heatmat ??
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Yes and no.
Yes, you can limit the maximum amount of power supplied to the heat mat.
No, you can't control the precise temperature.
You're basically telling it "You can have this many watts of power".
That number of watts means a different temperature if your room's 50 degrees than it does if your room's 90 degrees.
A thermostat does one better - "you can have the right number of watts of power to keep you at THIS temperature."