Heaters

[chris301up]

This may seem like a silly question but here goes.

How can two, or more heaters be set to exactly the right temperature so they switch on and of at the same times?

 

[raptorrex]

This may seem like a silly question but here goes.

How can two, or more heaters be set to exactly the right temperature so they switch on and of at the same times?

there's a couple of answers in the other, identical, thread.