If you will need to fish wiring through a wall drill a hole through the wood plate in the attic only.
Power switch in the attic.
When connected to the thermostat they can turn on and off automatically depending on the current household temperature and the specific settings.
What i m wanting to do is keep a poe switch in the attic.
Through a room upstairs there is a door that opens and you can step out into the attic.
Forgot to mention that where the junction box is going to be there is already one there.
According to building codes a furnace must be supplied by a dedicated circuit meaning the circuit cannot supply power to anything other than the furnace.
This circuit is served by its own circuit breaker in the breaker box properly called the main service panel the circuit wiring runs from the service panel to the disconnect switch and from there to the furnace.
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How the furnace switch works.
Drill a hole from the attic fish the wire down and fish this wire into the outlet junction box.
Drill the hole from the attic and fish the wire down to the switch.
Cut a hole the size of the remodel junction box for the switch.
Most either come with a programmable thermostat or can be wired to one which will turn the fan on when the attic reaches a set temperature no need for flipping a switch or monitoring the attic s.
I would need to run an extension cord around a corner from that outlet in the attic to put it where i want to put it.
There is a power outlet in the attic on the wall on a stud near that door.