If you are talking about doorbell transformers they should be mounted in open air.
Attic rated doorbell transformer.
Jim port jim port april 19.
If you want to verify the transformer get a voltmeter and test its input and output while the doorbell works.
It looks like a small metal box and can be silver off white or even brass colored.
Nutone doorbell installation time study.
These installations require a transformer and often holes to be drilled in floors and door frames.
They do get hot and need a way to cool.
Also i d imagine the hottest point for the attic would be about 4 to 5 pm not noon.
The moment the doorbell breakers run up there and test the transformer.
An electrically wired doorbell requires a transformer to step down the 120 volt house circuit to the correct voltage and wattage required by your doorbell.
The attic is insulated so the transformer will likely need an additional enclosure box i looked up the california electrical code 2016 but couldn t find a paragraph which would explicitly allow or disallow such installation and everything 1000v is considered low voltage by the code which doesn t help with search.
The attic is fine but a garage is better.
Mount it up 2 3 off the attic floor and hard wire an outlet next to the.
If your doorbell is no longer working you may need to troubleshoot the transformer in order to perform the repair.
In fact almost all attic mounted ac heating equipment has a control transformer in it.
A transformer keeps wired doorbells powered at the right voltage for optimal operation.
A doorbell transformer is a small brass or silver colored box about 2 to 3 inches square with two to three terminal screws on the face.
If you just put it into the insulation that may be a problem.
You can get metal or plastic ones that are ul rated.
Preferably outside a junction box.
I would put it into a junction or pull box.
Most doorbells run on low voltage electricity.