Mike Stewart
Member
I have installed two 150kva dry type transformers for a fire pump, these transformer are located in a unconditioned vault in the bottom of the building and I am looking to put some type of heater in the one on the emergency side so that it doesn't go from cold to hot once it is used. Does anyone have any suggestions of what kind to use? It doesn't have to be anything real expensive, just something to heat it up a little.