I have an internal, windowless toilet with an extractor fan. The fan is wired into the lighting circuit and comes on and off with the light (no timer).
I'm having a shower added to this room so want to replace the fan with one with a humidistat and timer. Can I simply replace the fan or does a humidistat timer need a separate supply of power? Do they have an internal battery to store power when the light is turned off?
I'm having a shower added to this room so want to replace the fan with one with a humidistat and timer. Can I simply replace the fan or does a humidistat timer need a separate supply of power? Do they have an internal battery to store power when the light is turned off?